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Flat Rock, IL 7-Day Weather Forecast
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Flat Rock Weather Forecast
Flat Rock, IL Weather Forecast Date: 1037 AM CDT Thu Sep 03 2026
Weather forecast for Flat Rock, IL
Today Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Rest of Today... Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 105. |
| Fri Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Friday... Sunny, hot with highs in the upper 90s. West winds 5 to 10 mph. |
| Sat Hi: 95°FHi: 35°C Lo: 70°F Lo: 21°C |
Saturday... Sunny, hot with highs in the mid 90s. West winds around 5 mph. Heat index values up to 103. |
| Sun Hi: 90°FHi: 32°C Lo: 65°F Lo: 18°C |
Sunday... Mostly sunny. Highs around 90. |
| Mon Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Monday... Mostly clear. Lows in the mid 60s. Highs in the lower 90s. |
| Tue Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Tuesday... Mostly clear. Lows in the mid 60s. Highs in the lower 90s. |
| Tue Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Tuesday... Mostly clear. Lows in the mid 60s. Highs in the lower 90s. |
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