Lannon Lake Weather Forecast
- 55
- 72
Chance Thunderstorms
- 55
- 81
Slight Chance Thunderstorms
- 49
- 70
Partly Sunny
- 50
- 73
Partly Sunny
- 49
- 72
Chance Thunderstorms
- 51
- 72
Partly Sunny
Today 11 Jun Big Stone
Mostly cloudy late this Morning, then becoming partly sunny. A chance of Showers. A slight chance of Thunderstorms this afternoon. Not as warm with Highs in the lower 70s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.
Tonight 11 Jun Big Stone
Partly cloudy with a chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 50s. West Winds 15 to 20 Mph, Diminishing to around 10 Mph after midnight. Chance of rain 30 percent.
Lannon Lake Temperature Statistics
June Temperature
Wheaton Municipal Airport (16.8 miles)
Lowest 6 June, 2026
57.2 °FAverage June
73.4 °FHighest 7 June, 2026
89.6 °F
Climate (2021–Present)
Wheaton Municipal Airport (16.8 miles)
Average Low 2021–2026
34.7 °FAverage 2021–2026
44.6 °FAverage High 2021–2026
54.5 °F