Mystic Lake Weather Forecast
- 40
- 57
Rain Showers
- 38
- 55
Mostly Cloudy
- 40
- 60
Partly Sunny
- 42
- 58
Partly Sunny
- 43
- 55
Partly Sunny
- 42
- 58
Partly Sunny
Today 25 Sep Northeast Mountains
Rain Showers. A chance of Thunderstorms in the afternoon. Highs in the lower to mid 60s. Temperature falling into the lower 50s in the afternoon. Southwest wind 5 to 15 Mph in the afternoon. Gusts up to 35 Mph. Chance of precipitation near 100 percent. Rainfall Amounts less than a quarter of an Inch, except higher Amounts possible in Thunderstorms.
Tonight 25 Sep Northeast Mountains
Rain Showers and a chance of Thunderstorms in the Evening, then a chance of rain Showers overnight. Snow level 5500 feet overnight. Lows in the mid 30s to lower 40s. Southwest wind 5 to 15 Mph with Gusts up to 35 Mph, except southwest 15 to 25 Mph with Gusts up to 40 Mph in the Mountains. Chance of precipitation near 100 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.
Mystic Lake Temperature Statistics
September Temperature
Sandpoint, Sandpoint Airport (26.7 miles)
Lowest 5 September, 2026
37.4 °FAverage September
56.6 °FHighest 1 September, 2026
77 °F
Climate (2021–2026)
Sandpoint, Sandpoint Airport (26.7 miles)
Average Low 2021–2026
37.1 °FAverage 2021–2026
47 °FAverage High 2021–2026
57.1 °F