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Roachtown Lake, IL 7-Day Weather Forecast
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Roachtown Lake Weather Forecast
Roachtown Lake, IL Weather Forecast Date: 253 PM CDT Fri Sep 04 2026
Weather forecast for Roachtown Lake, IL
Tonight Lo: 79°F Lo: 26°C |
Tonight... Mostly clear. Lows in the upper 70s. South winds around 5 mph this evening, becoming light and variable. Heat index values up to 104 early this evening. |
Sat Hi: 100°FHi: 38°C Lo: 75°F Lo: 24°C |
Saturday... Sunny, hot with highs around 100. West winds around 5 mph. Heat index values up to 108. |
| Sun Hi: 95°FHi: 35°C Lo: 69°F Lo: 21°C |
Sunday... Sunny. Highs in the mid 90s. Northeast winds 5 to 10 mph. |
| Labor Day Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Labor Day... Mostly clear. Highs in the lower 90s. Lows in the upper 60s. |
| Tue Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Tuesday... Mostly clear. Hot. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 105. |
| Wed Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Wednesday... Mostly clear. Hot. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 105. |
| Wed Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Wednesday... Mostly clear. Hot. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 105. |
Thu Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Thursday... Partly cloudy with a slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the upper 60s. Chance of rain 20%. |
| Fri Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Friday... Partly cloudy with a slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the upper 60s. Chance of rain 20%. |
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