Average annual temperature is 6.9 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -21.4 °C
Number of sunny days: 147 days
Number of rainy days: 149 days
Number of snow days: 69 days
Look at detailed online map of Forest Lake
* Weather data for Forest Lake United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 2.7 | 7.1 | 7.1 | 24.9 | 32.3 | 34.4 | 31.5 | 29.7 | 32.7 | 26.8 | 15.0 | 9.7 |
| Average daytime temperature (°C) | -1.9 | -1.4 | 0.9 | 9.8 | 18.5 | 22.9 | 23.5 | 23.0 | 21.5 | 12.8 | 5.4 | 3.1 |
| Average temperature (°C) | -4.5 | -5.7 | -3.1 | 3.9 | 11.5 | 16.3 | 17.7 | 17.9 | 16.5 | 9.4 | 1.5 | 0.3 |
| Average night temperature (°C) | -7.0 | -9.0 | -6.3 | -0.1 | 6.1 | 11.0 | 13.6 | 14.2 | 12.8 | 7.1 | -1.5 | -1.9 |
| Absolute minimum temperature (°C) | -21.4 | -19.0 | -12.3 | -8.6 | -0.9 | 4.5 | 9.2 | 10.0 | 6.2 | -4.9 | -7.8 | -8.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.4 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.3 | 5.5 | 6.4 | 7.2 | 10.7 | 11.1 | 11.6 | 11.0 | 8.5 | 5.3 | 4.7 | 2.5 |
| Precipitation (mm) | 73 | 58 | 50 | 125 | 126 | 70 | 74 | 70 | 64 | 102 | 41 | 57 |
| Sunny days | 9 | 7 | 12 | 9 | 22 | 17 | 7 | 13 | 16 | 9 | 13 | 13 |
| Rainy days | 5 | 4 | 7 | 13 | 9 | 13 | 24 | 18 | 14 | 20 | 11 | 11 |
| Snow days | 17 | 17 | 12 | 8 | 0 | 0 | 0 | 0 | 0 | 2 | 6 | 7 |
The best time to visit Forest Lake during the most sunny months:
Months with the longest average daylight duration in Forest Lake:
The largest precipitation sum in Forest Lake is at