Weather WorldCrystal Lake, IL 7-Day Weather Forecast
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Crystal Lake Weather Forecast
Crystal Lake, IL Weather Forecast Date: 341 PM CDT Mon Oct 26 2026
Weather forecast for Crystal Lake, IL
Late Today Lo: 45°F Lo: 7°C |
Late This Afternoon... Mostly cloudy. Northeast winds around 10 mph. |
| Tue Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Tuesday... Mostly cloudy. Highs in the upper 60s. Southeast winds 5 to 10 mph. |
Wed Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Wednesday... Mostly cloudy in the morning, then clearing. Highs in the lower 70s. South winds around 5 mph, increasing to around 10 mph in the afternoon. |
Thu Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Thursday... Mostly cloudy. A chance of showers, mainly in the morning. Highs in the lower 70s. Chance of precipitation 30%. |
| Fri Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Friday... Mostly cloudy. A chance of showers in the afternoon. Highs in the upper 60s. Chance of precipitation 40%. |
| Sat Hi: 70°FHi: 21°C Lo: 55°F Lo: 13°C |
Saturday... Mostly cloudy with a 40% chance of showers. Highs around 70. |
| Sun Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Sunday... Mostly cloudy. A chance of showers in the morning. Highs around 70. Chance of precipitation 40%. |
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