| NWS Forecast for: Grayslake IL Issued by: National Weather Service Chicago, IL Last Update: 10:56 am CST Jan 18, 2026 |  |
Today: Snow, mainly after 4pm. High near 16. Wind chill values as low as -5. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible. Tonight: Snow, mainly before 11pm. Low around 0. Wind chill values as low as -22. Blustery, with a west southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible. M.L.King Day: Mostly sunny and cold, with a high near 5. Wind chill values as low as -24. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph. Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -14. West wind 10 to 15 mph, with gusts as high as 20 mph. Tuesday: Mostly sunny, with a high near 19. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 12. Wednesday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 26. Wednesday Night: Partly cloudy, with a low around 8. Thursday: Mostly sunny, with a high near 18. Thursday Night: Mostly cloudy, with a low around 10. Friday: Mostly cloudy, with a high near 24. Friday Night: A chance of snow. Mostly cloudy, with a low around 6. Saturday: A chance of snow. Partly sunny, with a high near 14. | |
| Grayslake IL 42.37°N 88.05°W | |
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