Dead Lake, IL 7-Day Weather Forecast
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Dead Lake Weather Forecast


Dead Lake, IL Weather Forecast Date: 705 PM CDT Tue Oct 20 2026
Weather forecast for Dead Lake, IL
| Tonight Lo: 41°F Lo: 5°C |
Tonight... Mostly clear in the evening, then becoming partly cloudy. Areas of fog after midnight. Lows in the lower 40s. East winds around 5 mph in the evening, becoming light and variable. |
| Wed Hi: 70°FHi: 21°C Lo: 49°F Lo: 9°C |
Wednesday... Partly cloudy in the morning, then becoming sunny. Areas of fog early in the morning. Highs around 70. Southwest winds around 5 mph. |
| Thu Hi: 69°FHi: 21°C Lo: 50°F Lo: 10°C |
Thursday... Partly cloudy in the morning, then clearing. Highs in the upper 60s inland, but only in the mid 60s near the lake. Temperature falling into the lower 60s in the afternoon. Northeast winds around 5 mph. |
| Fri Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Friday... Mostly sunny. Highs in the upper 60s. |
| Sat Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Saturday... Mostly cloudy. Highs in the upper 60s. |
| Sun Hi: 70°FHi: 21°C Lo: 50°F Lo: 10°C |
Sunday... Mostly cloudy. Highs around 70. |
| Mon Hi: 61°FHi: 16°C Lo: 45°F Lo: 7°C |
Monday... Mostly cloudy. Highs in the lower 60s. |
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