Big Arm Weather Forecast
- 43
- 59
Rain Showers
- 46
- 61
Rain Likely
- 43
- 54
Rain
- 40
- 52
Rain
- 33
- 50
Rain/Snow Likely
- 32
- 45
Chance Snow
- 33
- 50
Slight Chance Snow
Today 11 Apr Flathead/Mission Valleys
Chance of rain Showers until late afternoon. Slight chance of Thunderstorms in the afternoon. Rain Showers likely late in the afternoon. Chance of precipitation 70 percent. Highs in the mid 50s to lower 60s.
Tonight 11 Apr Flathead/Mission Valleys
Rain likely early in the Evening, then partly cloudy with Areas of rain in the late evening and overnight. Chance of rain 60 percent. Lows in the mid 30s to lower 40s.
Big Arm Temperature Statistics
April Temperature
Kalispell, Glacier Park International Airport (34.8 miles)
Lowest 8 April, 2026
20.6 °FAverage April
43.7 °FHighest 6 April, 2026
67.6 °F
Climate (2021–Present)
Kalispell, Glacier Park International Airport (34.8 miles)
Average Low 2021–2026
33.4 °FAverage 2021–2026
45.5 °FAverage High 2021–2026
57.2 °F