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City of Mattoon, IllinoisMattoon, IL 7-Day Weather Forecast
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Mattoon Weather Forecast
Mattoon, IL Weather Forecast Date: 838 PM CST Mon Mar 02 2026
Weather forecast for Mattoon, IL
Tonight Lo: 39°F Lo: 4°C |
Tonight... Cloudy. Rain showers likely. Near steady temperature in the upper 30s. East winds around 5 mph. Chance of rain 70%. |
| Tue Hi: 51°FHi: 11°C Lo: 49°F Lo: 9°C |
Tuesday... Showers. Not as cool with highs in the lower 50s. Southeast winds around 5 mph. Chance of rain near 100%. |
Wed Hi: 61°FHi: 16°C Lo: 51°F Lo: 11°C |
Wednesday... Patchy fog in the morning. Showers. A chance of thunderstorms in the afternoon. Not as cool with highs in the lower 60s. Southeast winds 5 to 10 mph, becoming south in the afternoon. Chance of rain 90%. |
| Thu Hi: 65°FHi: 18°C Lo: 51°F Lo: 11°C |
Thursday... Showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 80%. |
Fri Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Friday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs in the mid 70s. Chance of rain 50%. |
| Sat Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Saturday... Cloudy. Showers, mainly in the morning. Highs in the upper 60s. Chance of rain 80%. |
Sun Hi: 61°FHi: 16°C Lo: 49°F Lo: 9°C |
Sunday... Mostly cloudy. Highs in the lower 60s. Lows in the upper 40s. |
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