Mountain air

Whitefish (Glacier National Park) weather in May

Temperature, rain and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

75

Holiday weather in May

Good

Best time to visit: May – September

Best for skiing: December – March

What is the weather like in Whitefish (Glacier National Park) in May?

In May, Whitefish (Glacier National Park) is mild: daytime highs average 16 °C, and nights cool down to about 5 °C. The sun shines for around 8 hours a day. It rains often – on about 14 days, adding up to 79 mm. All in all, May is a good month for a holiday in Whitefish (Glacier National Park).

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score417582
Day10°16°21°
Night0°5°9°
Sun7 h8 h9 h
Rain days141412

More details for May

Daylight
15 h 11 min05:58 – 21:09
UV index
8 · very highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
11 km/haverage daily peakAll months
Cloud cover
61 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
1 day1 cm or more of fresh snowAll months
Time zone
UTC−6America/Denver

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %82 %
  • Few rainy daysweight 30 %28 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Whitefish (Glacier National Park) in May: quick answers

Is Whitefish (Glacier National Park) hot in May?

No. In May, Whitefish (Glacier National Park) is mild: daytime highs average 16 °C and nights drop to about 5 °C.

Does it rain much in Whitefish (Glacier National Park) in May?

It rains often – on about 14 days, adding up to 79 mm.

Whitefish (Glacier National Park) month by month

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