| NWS Forecast for: Grayslake IL Issued by: National Weather Service Chicago, IL Last Update: 11:46 am CST Feb 16, 2026 | |
| Washington's Birthday: Sunny, with a high near 17. West southwest wind 25 to 30 km/h decreasing to 15 to 20 km/h. Winds could gust as high as 50 km/h. Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 3. Southwest wind around 10 km/h becoming east after midnight. Winds could gust as high as 20 km/h. Tuesday: Patchy fog before 9am. Otherwise, cloudy, with a high near 9. East southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h. Tuesday Night: Showers likely, with thunderstorms also possible after 3am. Mostly cloudy, with a low around 7. Southeast wind around 25 km/h becoming south southwest after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 70%. Wednesday: A 20 percent chance of showers before noon. Sunny, with a high near 17. Breezy, with a west southwest wind 30 to 35 km/h decreasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 50 km/h. Wednesday Night: Partly cloudy, with a low around 2. Thursday: A 30 percent chance of rain after noon. Mostly sunny, with a high near 11. Thursday Night: Rain likely. Mostly cloudy, with a low around 1. Friday: A chance of rain and snow before noon. Partly sunny, with a high near 5. Friday Night: Mostly cloudy, with a low around -3. Saturday: Partly sunny, with a high near 3. Saturday Night: Mostly cloudy, with a low around -6. Sunday: Partly sunny, with a high near -1. | |
| Grayslake IL 42.37°N 88.05°W | |
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