Lannon Lake Weather Forecast
- 21
- 32
Breezy
- 28
- 37
Partly Sunny
- 28
- 43
Mostly Cloudy
- 21
- 38
Mostly Cloudy
- 24
- 38
Chance Snow
- 24
- 40
Slight Chance Snow
Today 7 Feb Big Stone
Mostly cloudy and brisk. Near steady temperature in the lower 30s. Southeast Winds 15 to 25 Mph with Gusts up to 35 Mph.
Tonight 7 Feb Big Stone
Mostly cloudy in the Evening, then becoming partly cloudy. Not as cold with Lows in the lower 20s. Southeast Winds 10 to 15 Mph.
Lannon Lake Temperature Statistics
February Temperature
Wheaton Municipal Airport (16.8 miles)
Lowest 3 February, 2026
-9.4 °FAverage February
19 °FHighest 5 February, 2026
44.6 °F
Climate (2021–Present)
Wheaton Municipal Airport (16.8 miles)
Average Low 2021–2026
34.8 °FAverage 2021–2026
44.7 °FAverage High 2021–2026
54.5 °F