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Merrimac, IL 7-Day Weather Forecast
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Merrimac Weather Forecast
Merrimac, IL Weather Forecast Date: 458 PM CST Mon Mar 02 2026
Weather forecast for Merrimac, IL
Tonight Lo: 39°F Lo: 4°C |
Tonight... Cloudy. Patchy fog. Rain with a chance of thunderstorms after midnight. Near steady temperature in the upper 30s. East winds around 5 mph. Chance of rain 80%. |
Tue Hi: 65°FHi: 18°C Lo: 51°F Lo: 11°C |
Tuesday... Cloudy. Rain in the morning, then a chance of rain with a slight chance of thunderstorms in the afternoon. Not as cool with highs in the mid 60s. East winds around 5 mph. Chance of rain 90%. |
| Wed Hi: 69°FHi: 21°C Lo: 55°F Lo: 13°C |
Wednesday... Rain with a chance of thunderstorms. Highs in the upper 60s. South winds around 5 mph. Chance of rain 90%. |
| Thu Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Thursday... Mostly cloudy with rain likely with a chance of thunderstorms in the morning, then partly sunny with a chance of rain with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70%. |
| Fri Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Friday... Mostly cloudy. A chance of rain and thunderstorms. Lows in the mid 50s. Highs around 80. Chance of rain 50%. |
| Sat Hi: 71°FHi: 22°C Lo: 50°F Lo: 10°C |
Saturday... Cloudy with a slight chance of thunderstorms. Rain, mainly in the morning. Highs in the lower 70s. Chance of rain 80%. |
Sun Hi: 65°FHi: 18°C Lo: 50°F Lo: 10°C |
Sunday... Mostly cloudy with a 20% chance of rain. Highs in the mid 60s. Lows around 50. |
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