Average annual temperature is 22.4 °C
Absolute maximum temperature: 42.0 °C
Absolute minimum temperature: -0.2 °C
Number of sunny days: 180 days
Number of rainy days: 185 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) | 27.8 | 29.2 | 32.1 | 33.5 | 31.8 | 39.8 | 39.8 | 42.0 | 40.6 | 34.9 | 30.5 | 26.8 |
| Average daytime temperature (°C) | 20.0 | 20.8 | 25.8 | 25.9 | 28.8 | 35.6 | 37.3 | 39.9 | 36.1 | 28.5 | 21.3 | 20.7 |
| Average temperature (°C) | 14.2 | 14.2 | 19.4 | 20.0 | 23.7 | 29.1 | 31.1 | 32.8 | 29.9 | 22.8 | 16.2 | 14.3 |
| Average night temperature (°C) | 9.9 | 9.7 | 15.1 | 15.5 | 19.6 | 23.8 | 25.7 | 26.8 | 24.9 | 18.4 | 12.4 | 9.4 |
| Absolute minimum temperature (°C) | -0.1 | -0.2 | 5.5 | 10.9 | 13.7 | 18.4 | 23.9 | 24.4 | 22.2 | 6.6 | 4.3 | 1.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.6 | 7.0 | 7.2 | 8.1 | 9.1 | 11.8 | 12.1 | 11.9 | 10.6 | 8.2 | 5.9 | 7.3 |
| Precipitation (mm) | 113 | 36 | 103 | 249 | 183 | 46 | 15 | 9 | 60 | 108 | 42 | 57 |
| Sunny days | 16 | 13 | 10 | 10 | 8 | 16 | 21 | 23 | 10 | 16 | 16 | 21 |
| Rainy days | 15 | 15 | 21 | 20 | 23 | 14 | 10 | 8 | 20 | 15 | 14 | 10 |
| 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