Glacier National Park Weather Forecast
- 37
- 53
Chance Rain
- 35
- 55
Chance Rain
- 39
- 59
Chance Rain
- 42
- 63
Chance Rain
- 42
- 63
Chance Rain
- 44
- 68
Mostly Sunny
Today 20 May West Glacier Region
Areas of rain and snow in the Morning, then rain Showers likely and a slight chance of Thunderstorms in the afternoon. Snow likely late in the afternoon. Chance of precipitation 70 percent. Snow level 6000 feet. Little or no new snow accumulation. Highs in the mid 40s to lower 50s. Southwest Winds to 15 Mph. Gusts up to 30 Mph in the afternoon.
Tonight 20 May West Glacier Region
Mostly cloudy with a slight chance of rain. Slight chance of snow in the evening. Chance of precipitation 20 percent. Lows in the 30s. Southwest Winds 15 to 20 Mph with Gusts to around 30 Mph.
Glacier National Park Temperature Statistics
May Temperature
Kalispell, Glacier Park International Airport (37.9 miles)
Lowest 6 May, 2025
25.8 °FAverage May
53.2 °FHighest 3 May, 2025
79.6 °F
Climate (2020–Present)
Kalispell, Glacier Park International Airport (37.9 miles)
Average Low 2020–2025
33 °FAverage 2020–2025
44.9 °FAverage High 2020–2025
56.6 °F