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Jack Lake Weather Forecast
Jack Lake, IL Weather Forecast Date: 337 AM CDT Mon Sep 14 2026
Weather forecast for Jack Lake, IL
Today Hi: 81°FHi: 27°C Lo: 71°F Lo: 22°C |
Today... Partly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph. |
Tue Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Tuesday... Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. More humid with highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 25 mph, becoming west in the afternoon. Chance of rain 50%. |
Wed Hi: 89°FHi: 32°C Lo: 70°F Lo: 21°C |
Wednesday... Becoming partly sunny in the afternoon. Showers likely in the morning. Highs in the upper 80s. East winds around 5 mph. Chance of rain 70%. |
| Thu Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Thursday... Partly sunny. A chance of showers in the morning. Highs in the upper 80s. Chance of rain 40%. |
| Fri Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Friday... Partly sunny. Highs in the mid 80s. |
Sat Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Saturday... Partly cloudy. A chance of showers. Highs in the mid 80s. Lows in the mid 60s. Chance of rain 40%. |
| Sun Hi: 81°FHi: 27°C |
Sunday... Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30%. |
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