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City of Wheaton, ILWheaton, IL 7-Day Weather Forecast
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Wheaton Weather Forecast
Wheaton, IL Weather Forecast Date: 456 AM CDT Thu Sep 03 2026
Weather forecast for Wheaton, IL
Morning Hi: 79°FHi: 26°C |
Early This Morning... Partly cloudy late, then becoming mostly cloudy. Temperatures in the upper 70s. Southwest winds around 5 mph. |
Today Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Today... Partly cloudy. A slight chance of showers and thunderstorms early in the afternoon. A chance of showers and thunderstorms late. Hot, humid. Highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of precipitation 40%. Heat index values up to 103. |
| Fri Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Friday... Mostly cloudy in the morning, then clearing. A chance of showers and thunderstorms early in the morning, then a slight chance of showers and thunderstorms late in the morning. Humid with highs in the lower 90s. South winds 5 to 10 mph, becoming southwest in the afternoon. Chance of precipitation 50%. Heat index values up to 102. |
| Sat Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Saturday... Partly cloudy. A slight chance of showers and thunderstorms in the morning. Humid with highs in the mid 80s. Northeast winds 5 to 10 mph. Chance of precipitation 20%. |
| Sun Hi: 79°FHi: 26°C Lo: 65°F Lo: 18°C |
Sunday... Partly cloudy. Highs in the upper 70s. |
| Labor Day Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Labor Day... Partly cloudy. Highs in the lower 80s. |
| Tue Hi: 85°FHi: 29°C Lo: 71°F Lo: 22°C |
Tuesday... Partly cloudy. Highs in the mid 80s. |
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