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McCarthy Lake, IL 7-Day Weather Forecast
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McCarthy Lake Weather Forecast
McCarthy Lake, IL Weather Forecast Date: 937 PM CDT Tue Oct 13 2026
Weather forecast for McCarthy Lake, IL
Tonight Lo: 71°F Lo: 22°C |
Tonight... Clear late this evening, then partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 20%. |
Wed Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Wednesday... A chance of thunderstorms. Showers. Not as warm. Humid with highs in the lower 80s. West winds around 5 mph. Chance of rain 90%. |
| Thu Hi: 85°FHi: 29°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 80s. Southeast winds around 5 mph, becoming southwest with gusts up to 20 mph in the afternoon. Chance of rain 80%. |
Fri Hi: 61°FHi: 16°C Lo: 39°F Lo: 4°C |
Friday... Partly sunny in the morning, then clearing. Breezy and much cooler with highs in the lower 60s. |
Sat Hi: 61°FHi: 16°C Lo: 39°F Lo: 4°C |
Saturday... Mostly clear. Lows in the upper 30s. Highs in the lower 60s. |
| Sun Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Sunday... Sunny. Highs in the upper 60s. |
| Mon Hi: 71°FHi: 22°C Lo: 50°F Lo: 10°C |
Monday... Partly cloudy. Lows in the mid 40s. Highs in the lower 70s. |
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