Weather in Wheaton, Illinois, United States
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | -7°C | 0°C | 65.7 mm | 72% | 39.0 km/h |
| February | -6°C | 3°C | 48.7 mm | 59% | 42.3 km/h |
| March | 1°C | 10°C | 95.4 mm | 63% | 46.9 km/h |
| April | 5°C | 15°C | 86.6 mm | 63% | 46.8 km/h |
| May | 11°C | 21°C | 101.7 mm | 61% | 40.3 km/h |
| June | 17°C | 27°C | 114.0 mm | 50% | 40.0 km/h |
| July | 19°C | 28°C | 101.2 mm | 54% | 34.1 km/h |
| August | 18°C | 28°C | 76.3 mm | 51% | 34.7 km/h |
| September | 14°C | 25°C | 60.4 mm | 45% | 34.2 km/h |
| October | 9°C | 18°C | 86.1 mm | 49% | 40.3 km/h |
| November | 1°C | 10°C | 50.6 mm | 58% | 41.9 km/h |
| December | -3°C | 4°C | 61.0 mm | 72% | 41.2 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 0.0% | |
| February | 0.3% | |
| March | 0.5% | |
| April | 7.0% | |
| May | 20.1% | |
| June | 37.1% | |
| July | 34.0% | |
| August | 37.8% | |
| September | 48.0% | |
| October | 17.4% | |
| November | 2.2% | |
| December | 0.0% |
About this location and data
- Urban-centre population
- 108,584
- Elevation
- 215 m
- Coordinates
- 41.89°N, 88.08°W
- Urban area
- 53 km²
Weather averages use 2 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculatedNearby places with higher scores
Annual results for the default weather criteria: