AI-generatedWest Yellowstone at a glance
- Best time
- Jun – Sep
- Warmest month
- Jul · 26°
- Sunshine a year
- 2,280 h
- Rain a year
- 706 mm
- Climate
- Continental
- Time zone
- UTC−7 / UTC−6
- Elevation
- 2,031 m
Climate in West Yellowstone
West Yellowstone has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 26 °C, while December is the coolest at −6 °C. With around 2,280 hours of sunshine a year, West Yellowstone is sunny; July is the sunniest month with 10.7 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: June – September
Keep in mindSnow
A typical day in October
- Morning, 08:00: about -1°
- Midday, 13:00: about 8°
- Afternoon, 16:00: about 8°
- Evening, 20:00: about 4°
- Night, 23:00: about 2°
07:3818:42
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:20–08:18 · evening 18:02–19:00
- Blue hour
- Morning 07:09–07:20 · evening 19:00–19:11
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in West Yellowstone in October?
In October, West Yellowstone is cold: daytime highs average 9 °C, and nights often drop below freezing (−2 °C). Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 60 mm in total. Snow falls on about 6 days. All in all, October is not an ideal month for a holiday in West Yellowstone.
More details for October
- Daylight
- 11 h 4 min07:38 – 18:42
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 53 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 6 days1 cm or more of fresh snowAll months
- Time zone
- UTC−6America/Denver
How the score comes together
- Temperatureweight 50 %6 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 30 %59 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- Sunscreen
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Sunshine hours in West Yellowstone
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.3 of 11.1 hours of daylight in West Yellowstone, 48 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in West Yellowstone
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 40 min
- Fair skin
- about 45 min
- Light brown skin
- about 65 min
- Olive skin
- about 85 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in West Yellowstone: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, West Yellowstone has about 10 rainy days with 60 mm of rain in total.
Wind and clouds in West Yellowstone
How breezy and how cloudy West Yellowstone is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in West Yellowstone typically peaks at 15 km/h during the day: Beaufort 3, light breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 53 % of the sky over West Yellowstone: variable cloud, with about 5.3 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in West Yellowstone
How often the day gets hot in West Yellowstone (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, West Yellowstone has about 0 hot days, with an average daytime high of 9 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in West Yellowstone
When West Yellowstone is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, West Yellowstone has about 6 days with at least 1 cm of fresh snow, 21 cm in total. The chance of seeing snow during a week's stay is 49 out of 100: possible.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in West Yellowstone
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
FrostOctober: nights around −2°. Heating and warm bedding are a must.
The coolest nights are in December (−14°), the warmest in July (10°). Nights fall below 8 °C on average from September to June, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 10 | −6° | −13° | 3.3 h | 14 | 73 |
| FebruaryFeb | 15 | −3° | −12° | 4.0 h | 13 | 67 |
| MarchMar | 19 | 2° | −8° | 5.4 h | 13 | 71 |
| AprilApr | 22 | 5° | −5° | 6.5 h | 13 | 67 |
| MayMay | 44 | 11° | −1° | 7.6 h | 13 | 71 |
| JuneJun | 86 | 19° | 5° | 9.0 h | 11 | 56 |
| JulyJul | 99 | 26° | 10° | 10.7 h | 5 | 18 |
| AugustAug | 97 | 24° | 10° | 9.0 h | 6 | 27 |
| SeptemberSep | 90 | 18° | 5° | 7.5 h | 7 | 45 |
| OctoberOct | 28 | 9° | −2° | 5.3 h | 10 | 60 |
| NovemberNov | 16 | 0° | −10° | 3.6 h | 12 | 63 |
| DecemberDec | 8 | −6° | −14° | 2.7 h | 14 | 87 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
44.66° N, 111.10° W · 2,031 m · America/Denver
Best time to visit West Yellowstone
The best time to visit West Yellowstone is from June to September. For sightseeing, day trips and hiking, conditions are most comfortable from June to September. Rain is most frequent from December to May; the wettest month is December with 87 mm.
West Yellowstone through the seasons
How the weather changes over the seasons, with averages for each.
West Yellowstone in spring
Mar – May
Poor
- 2–11 °C by day
- 7 h of sun a day
- 39 rainy days in all
West Yellowstone in summer
Jun – Aug
Excellent
- 19–26 °C by day
- 10 h of sun a day
- 21 rainy days in all
West Yellowstone in autumn
Sep – Nov
Fair
- 0–18 °C by day
- 6 h of sun a day
- 28 rainy days in all
West Yellowstone in winter
Dec – Feb
Poor
- -6–-3 °C by day
- 3 h of sun a day
- 41 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in West Yellowstone for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in West Yellowstone
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in West Yellowstone: score 99 against 28. In July, days are 17 °C warmer than in October. July has 5 fewer rainy days. The sun shines 5 hours longer a day in July.
| Month | October | July |
|---|---|---|
| Weather score | 28 | 99better |
| Day high | 9° | 26° |
| Night low | −2° | 10° |
| Sunshine | 5.3 h | 10.7 hbetter |
| Rainy days | 10 | 5better |
| Rainfall | 60 mm | 18 mmbetter |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jun – Sep
15–28 °C and not too much rain
Rainy months
Dec – May
12 or more rainy days
Snow
Oct – May
Snow on 2 or more days
West Yellowstone month by month
The typical weather for every month at a glance.
10January-5° · 3 h
In January, West Yellowstone is freezing cold: daytime highs average −6 °C, and nights often drop below freezing (−13 °C). The sun is scarce, with only about 3 hours a day. Precipitation, often as snow, falls on about 14 days, totalling 73 mm. Snow falls on about 13 days. All in all, January is not an ideal month for a holiday in West Yellowstone.
West Yellowstone in January15February-3° · 4 h
In February, West Yellowstone is freezing cold: daytime highs average −3 °C, and nights often drop below freezing (−12 °C). Expect around 4 hours of sunshine a day. Precipitation, often as snow, falls on about 13 days, totalling 67 mm. Snow falls on about 12 days. All in all, February is not an ideal month for a holiday in West Yellowstone.
West Yellowstone in February19March2° · 5 h
In March, West Yellowstone is freezing cold: daytime highs average 2 °C, and nights often drop below freezing (−8 °C). Expect around 5 hours of sunshine a day. Precipitation, often as snow, falls on about 13 days, totalling 71 mm. Snow falls on about 12 days. All in all, March is not an ideal month for a holiday in West Yellowstone.
West Yellowstone in March22April5° · 7 h
In April, West Yellowstone is cold: daytime highs average 5 °C, and nights often drop below freezing (−5 °C). The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 67 mm in total. Snow falls on about 9 days. All in all, April is not an ideal month for a holiday in West Yellowstone.
West Yellowstone in April44May11° · 8 h
In May, West Yellowstone is cool: daytime highs average 11 °C, and nights often drop below freezing (−1 °C). The sun shines for around 8 hours a day. Rain is frequent, with about 13 rainy days and 71 mm in total. Snow falls on about 5 days. All in all, May is a so-so month for a holiday in West Yellowstone.
West Yellowstone in May86June19° · 9 h
In June, West Yellowstone is mild: daytime highs average 19 °C, and nights cool down to about 5 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 11 rainy days and 56 mm in total. All in all, June is an excellent month for a holiday in West Yellowstone.
West Yellowstone in June99July26° · 11 h
In July, West Yellowstone is warm: daytime highs average 26 °C, and nights cool down to about 10 °C. With around 11 hours of sunshine a day, there is plenty of sun. Rain is rare: about 5 days bring 18 mm in total. All in all, July is an excellent month for a holiday in West Yellowstone.
West Yellowstone in July97August24° · 9 h
In August, West Yellowstone is warm: daytime highs average 24 °C, and nights cool down to about 10 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 27 mm. All in all, August is an excellent month for a holiday in West Yellowstone.
West Yellowstone in August90September18° · 8 h
In September, West Yellowstone is mild: daytime highs average 18 °C, and nights cool down to about 5 °C. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 45 mm. All in all, September is an excellent month for a holiday in West Yellowstone.
West Yellowstone in September28October9° · 5 h
In October, West Yellowstone is cold: daytime highs average 9 °C, and nights often drop below freezing (−2 °C). Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 60 mm in total. Snow falls on about 6 days. All in all, October is not an ideal month for a holiday in West Yellowstone.
West Yellowstone in October16November0° · 4 h
In November, West Yellowstone is freezing cold: daytime highs average 0 °C, and nights often drop below freezing (−10 °C). The sun is scarce, with only about 4 hours a day. Precipitation, often as snow, falls on about 12 days, totalling 63 mm. Snow falls on about 10 days. All in all, November is not an ideal month for a holiday in West Yellowstone.
West Yellowstone in November8December-6° · 3 h
In December, West Yellowstone is freezing cold: daytime highs average −6 °C, and nights often drop below freezing (−14 °C). The sun is scarce, with only about 3 hours a day. Precipitation, often as snow, falls on about 14 days, totalling 87 mm. Snow falls on about 15 days. All in all, December is not an ideal month for a holiday in West Yellowstone.
West Yellowstone in DecemberWest Yellowstone compared
Put West Yellowstone side by side with another destination.
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West Yellowstone vs. Jackson Hole
In October Jackson Hole has the better holiday weather (score 44 vs. 28). During the day Jackson Hole is 2 °C warmer than West Yellowstone. Jackson Hole gets one more hour of sunshine a day.
| in October | West Yellowstone | Jackson Hole |
|---|---|---|
| Holiday score | 28 | 44 |
| Daytime high | 9° | 11° |
| Sunshine | 5 h | 6 h |
| Rainy days | 10 | 10 |
| Best time | Jun – Sep | Jun – Sep |
Through the year
USA in October: the best places
In October, West Yellowstone ranks 30 among the 31 nearest destinations in this country.
- Las Vegas26°99
- 2Mariposa (Yosemite)23°98
- 3Sedona23°97
- 4Page (Lake Powell)21°96
- 5Sacramento25°96
- 6Moab21°95
- 7Reno19°95
- 8Albuquerque22°94
- 30West YellowstoneThis page9°28
Planning a trip to West Yellowstone
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
West Yellowstone in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
West Yellowstone has its best school-holiday weather during the summer holidays (score 98) and its weakest during the Christmas holidays (score 9).
- 21
Easter holidays
Mar – Apr
Poor
- 4 °C by day
- 6.2 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain, Snow
- 52
May half-term
May – Jun
Fair
- 13 °C by day
- 7.9 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain, Snow
- 98
Summer holidays
Jul – Aug
ExcellentBest holidays
- 25 °C by day
- 9.6 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 28
October half-term
Oct
Poor
- 9 °C by day
- 5.3 h of sun a day
- 10 rainy days a month
Keep in mind: Snow
- 9
Christmas holidays
Dec – Jan
Poor
- −6 °C by day
- 3.0 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 9 h 25 min
- Distance
- 7,430 km
- Time zone
- UTC−6
- Jet lag
- About 5 days (7 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about West Yellowstone
When is the best time to visit West Yellowstone?
The best time to visit West Yellowstone is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in West Yellowstone?
July is the warmest month, with average highs of 26 °C and nights around 10 °C. December is the coolest month at −6 °C.
When does it rain most in West Yellowstone?
Rain is most frequent from December to May; the wettest month is December with 87 mm. The driest month is July with 18 mm.
How many hours of sunshine does West Yellowstone get?
West Yellowstone gets around 2,280 hours of sunshine a year. The sunniest month is July with 10.7 hours a day; in December there are 2.7 hours a day.
What time zone is West Yellowstone in?
West Yellowstone uses the time zone America/Denver: UTC−7 in January and UTC−6 in July.
How long is the flight from London to West Yellowstone?
A nonstop flight from London to West Yellowstone takes about 9 h 25 min, for a straight-line distance of about 7,430 km.
Which school holidays are best for West Yellowstone?
West Yellowstone has its best school-holiday weather during the summer holidays (score 98) and its weakest during the Christmas holidays (score 9). Holiday ratings (0–100): Easter holidays 21, May half-term 52, Summer holidays 98, October half-term 28, Christmas holidays 9.
Near West Yellowstone
Other destinations close by.
Places with a climate like West Yellowstone
Destinations whose weather through the year is closest to West Yellowstone's – good alternatives.