Rainy Lake Weather Forecast
- 47
- 81
Chance Rain
- 48
- 81
Rain Likely
- 46
- 73
Rain Showers
- 45
- 66
Rain Showers Likely
- 44
- 69
Chance Rain Showers
- 44
- 72
Chance Rain
Today 9 Sep Potomac/Seeley Lake Region
Partly cloudy. Patchy fog early in the morning. Patchy smoke late in the afternoon. Areas of rain early in the afternoon. Chance of rain Showers and a slight chance of Thunderstorms late in the afternoon. Chance of precipitation 40 percent. Highs in the mid 70s to lower 80s.
Tonight 9 Sep Potomac/Seeley Lake Region
Rain Showers likely and a slight chance of Thunderstorms in the Evening, then slight chance of rain after midnight. Patchy smoke in the Evening, then patchy fog after midnight. Chance of precipitation 60 percent. Lows in the mid 40s to lower 50s.
Rainy Lake Temperature Statistics
September Temperature
Missoula, Missoula International Airport (36.7 miles)
Lowest 6 September, 2025
48.9 °FAverage September
70.3 °FHighest 2 September, 2025
96.1 °F
Climate (2020–Present)
Missoula, Missoula International Airport (36.7 miles)
Average Low 2020–2025
35.6 °FAverage 2020–2025
47 °FAverage High 2020–2025
59.3 °F