Trio Lakes Weather Forecast
- 48
- 62
Slight Chance Thunderstorms
- 43
- 59
Rain Showers Likely
- 41
- 48
Rain Showers Likely
- 46
- 60
Mostly Sunny
- 45
- 65
Mostly Sunny
- 43
- 59
Partly Sunny
- 43
- 57
Chance Rain Showers
Today 13 Sep Lower Clark Fork Region
Mostly sunny. Slight chance of rain until late Afternoon, then slight chance of Showers and Thunderstorms late in the afternoon. Patchy fog early in the morning. Chance of precipitation 20 percent. Highs in the mid 70s to lower 80s.
Tonight 13 Sep Lower Clark Fork Region
Partly cloudy. Patchy fog late in the night. Lows in the upper 40s to mid 50s.
Trio Lakes Temperature Statistics
September Temperature
Missoula, Missoula International Airport (39.8 miles)
Lowest 9 September, 2025
48 °FAverage September
68.4 °FHighest 2 September, 2025
96.1 °F
Climate (2020–Present)
Missoula, Missoula International Airport (39.8 miles)
Average Low 2020–2025
35.6 °FAverage 2020–2025
47.1 °FAverage High 2020–2025
59.2 °F