Average annual temperature is 17.4 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 195 days
Number of rainy days: 170 days
Look at detailed online map of Oak Forest
* Weather data for Oak Forest 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) | 22.2 | 26.8 | 28.5 | 29.4 | 30.7 | 32.3 | 34.8 | 37.0 | 34.4 | 27.6 | 24.8 | 22.9 |
| Average daytime temperature (°C) | 14.9 | 17.1 | 18.7 | 23.5 | 24.6 | 29.0 | 32.5 | 32.5 | 27.9 | 22.8 | 16.9 | 14.6 |
| Average temperature (°C) | 9.7 | 11.9 | 12.8 | 17.3 | 19.4 | 23.4 | 27.2 | 27.1 | 22.5 | 17.3 | 11.2 | 9.0 |
| Average night temperature (°C) | 5.6 | 7.9 | 7.9 | 12.0 | 14.4 | 18.3 | 22.8 | 22.5 | 17.9 | 12.7 | 6.7 | 4.6 |
| Absolute minimum temperature (°C) | -1.9 | -4.6 | -2.0 | 1.9 | 7.8 | 13.1 | 20.1 | 18.9 | 12.5 | 4.8 | -4.4 | -2.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.4 | 6.8 | 8.2 | 9.4 | 10.0 | 11.2 | 11.5 | 10.8 | 10.0 | 9.0 | 7.6 | 6.6 |
| Precipitation (mm) | 112 | 120 | 63 | 168 | 82 | 83 | 97 | 114 | 102 | 20 | 62 | 137 |
| Sunny days | 17 | 11 | 16 | 15 | 17 | 12 | 7 | 18 | 19 | 23 | 20 | 20 |
| Rainy days | 14 | 17 | 15 | 15 | 14 | 18 | 24 | 13 | 11 | 8 | 10 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Oak Forest during the most sunny months:
The largest precipitation sum in Oak Forest is at