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Flat Rock Weather Forecast
Flat Rock, IL Weather Forecast Date: 937 PM CST Mon Mar 02 2026
Weather forecast for Flat Rock, IL
Tonight Lo: 39°F Lo: 4°C |
Tonight... Cloudy. Rain likely. Patchy fog. Near steady temperature in the upper 30s. East winds around 5 mph. Chance of rain 70%. |
Tue Hi: 59°FHi: 15°C Lo: 50°F Lo: 10°C |
Tuesday... Showers. Not as cool with highs in the upper 50s. Southeast winds 5 to 10 mph. Chance of rain near 100%. |
Wed Hi: 65°FHi: 18°C Lo: 55°F Lo: 13°C |
Wednesday... Patchy fog in the morning. Showers with a chance of thunderstorms. Highs in the mid 60s. South winds 5 to 10 mph. Chance of rain 90%. |
| Thu Hi: 69°FHi: 21°C Lo: 55°F Lo: 13°C |
Thursday... Showers in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 90%. |
| Fri Hi: 75°FHi: 24°C Lo: 60°F Lo: 16°C |
Friday... Mostly cloudy in the morning, then becoming partly sunny. A chance of thunderstorms in the morning. A chance of showers. Highs in the mid 70s. Chance of rain 50%. |
| Sat Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Saturday... Showers, mainly in the morning. Highs around 70. Chance of rain 90%. |
Sun Hi: 61°FHi: 16°C Lo: 51°F Lo: 11°C |
Sunday... Mostly cloudy with a 30% chance of showers. Highs in the lower 60s. Lows in the lower 50s. |
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