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Rend Lake Weather Forecast
Rend Lake, IL Weather Forecast Date: 432 PM CDT Sat Sep 12 2026
Weather forecast for Rend Lake, IL
Tonight Lo: 69°F Lo: 21°C |
Tonight... Mostly clear. Lows in the upper 60s. Calm winds. |
Sun Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Sunday... Mostly sunny. Highs in the lower 90s. Northwest winds 5 to 10 mph. |
Mon Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Monday... Partly sunny in the morning, then clearing. Highs in the upper 80s. East winds around 10 mph. |
| Tue Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Tuesday... Sunny, hot with highs in the upper 90s. |
| Wed Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Wednesday... Mostly clear. Hot. Lows in the lower 70s. Highs in the mid 90s. |
| Thu Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Thursday... Mostly clear. Hot. Lows in the lower 70s. Highs in the mid 90s. |
| Thu Hi: 95°FHi: 35°C Lo: 69°F Lo: 21°C |
Thursday... Mostly clear. Hot. Lows in the lower 70s. Highs in the mid 90s. |
| Fri Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Friday... Partly cloudy. Lows in the upper 60s. Highs in the upper 80s. |
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