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Monument Park Mercer, IL 7-Day Weather Forecast
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Monument Park Mercer Weather Forecast
Monument Park Mercer, IL Weather Forecast Date: 546 PM CDT Fri Aug 14 2026
Weather forecast for Monument Park Mercer, IL
Tonight Lo: 71°F Lo: 22°C |
Tonight... Mostly cloudy. A chance of showers and thunderstorms this evening, then showers with thunderstorms likely after midnight. Some thunderstorms May produce heavy rainfall. Locally heavy rainfall possible after midnight. Lows in the lower 70s. East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90%. |
Sat Hi: 90°FHi: 32°C Lo: 71°F Lo: 22°C |
Saturday... Mostly cloudy with showers with a chance of thunderstorms in the morning, then partly sunny in the afternoon. Some thunderstorms May produce heavy rainfall in the morning. Hot with highs around 90. South winds 5 to 10 mph, becoming west with gusts up to 20 mph in the afternoon. Chance of rain 90%. Heat index values up to 110 in the afternoon. |
| Sun Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Sunday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. Northwest winds 5 to 10 mph. Chance of rain 50%. |
Mon Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Monday... Mostly clear. Highs in the lower 80s. Lows in the lower 60s. |
| Tue Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Tuesday... Mostly sunny. Highs in the mid 80s. |
Wed Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Wednesday... Partly sunny. Highs in the lower 80s. |
Thu Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Thursday... Partly cloudy. Lows in the lower 60s. Highs in the upper 70s. |
| Fri Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Friday... Partly cloudy. Lows in the lower 60s. Highs in the upper 70s. |
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