| NWS Forecast for: Grayslake IL Issued by: National Weather Service Chicago, IL Last Update: 3:11 am CST Feb 7, 2026 |  |
| Today: Sunny, with a high near -5. Wind chill values as low as -17. North northwest wind 5 to 10 km/h becoming southeast in the afternoon. Tonight: A 50 percent chance of snow, mainly between midnight and 3am. Mostly cloudy, with a low around -8. Southeast wind 5 to 10 km/h. Sunday: Partly sunny, with a high near -2. South southeast wind 10 to 15 km/h, with gusts as high as 25 km/h. Sunday Night: Mostly cloudy, with a low around -7. South wind around 10 km/h. Monday: Mostly cloudy, with a high near 4. South southwest wind 10 to 15 km/h, with gusts as high as 25 km/h. Monday Night: Mostly cloudy, with a low around 1. Tuesday: Partly sunny, with a high near 9. Tuesday Night: Mostly cloudy, with a low around -2. Wednesday: Mostly cloudy, with a high near 3. Wednesday Night: Mostly cloudy, with a low around -4. Thursday: A chance of snow. Mostly cloudy, with a high near 3. Thursday Night: A chance of snow. Mostly cloudy, with a low around -3. Friday: Mostly cloudy, with a high near 4. | |
| Grayslake IL 42.37°N 88.05°W | |
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