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Big Mound, IL 7-Day Weather Forecast
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Big Mound Weather Forecast
Big Mound, IL Weather Forecast Date: 847 AM CDT Fri Sep 11 2026
Weather forecast for Big Mound, IL
Today Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Today... Mostly cloudy. Highs in the mid 80s. Northeast winds around 5 mph, becoming southeast this afternoon. |
Sat Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Saturday... Mostly sunny. A chance of showers in the morning. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 40%. |
Sun Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Sunday... Mostly sunny. Highs in the lower 90s. Calm winds, becoming southwest around 5 mph in the afternoon. |
| Mon Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Monday... Mostly clear. Highs in the lower 90s. Lows in the upper 60s. |
| Tue Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Tuesday... Mostly clear. Highs in the lower 90s. Lows in the upper 60s. |
| Tue Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Tuesday... Mostly clear. Highs in the lower 90s. Lows in the upper 60s. |
Wed Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Wednesday... Partly cloudy. A chance of showers. Highs in the lower 90s. Lows in the upper 60s. Chance of rain 40%. |
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