Cottonwood Lake Weather Forecast
- 25
- 43
Increasing Clouds
- 27
- 44
Partly Sunny
- 28
- 46
Partly Sunny
- 27
- 47
Partly Sunny
- 28
- 45
Mostly Cloudy
- 27
- 46
Mostly Cloudy
Today 11 Feb McHenry
Mostly sunny. Highs in the upper 30s. South Winds 5 to 10 Mph. Gusts up to 45 Mph early in the morning.
Tonight 11 Feb McHenry
Decreasing Clouds. Lows around 20. South Winds around 5 Mph.
Cottonwood Lake Temperature Statistics
February Temperature
Harvey Municipal Airport (34.8 miles)
Lowest 2 February, 2026
8.6 °FAverage February
27.8 °FHighest 5 February, 2026
46.4 °F
Climate (2021–Present)
Harvey Municipal Airport (34.8 miles)
Average Low 2021–2026
30.2 °FAverage 2021–2026
41.2 °FAverage High 2021–2026
52 °F