| NWS Forecast for: Mundelein IL Issued by: National Weather Service Chicago, IL Last Update: 11:41 pm CDT Sep 4, 2026 | |
Overnight: A 50 percent chance of showers and thunderstorms, mainly before 3am. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 22. Calm wind. Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 28. North northeast wind 10 to 15 km/h, with gusts as high as 25 km/h. Saturday Night: Partly cloudy, with a low around 18. Northeast wind 5 to 15 km/h, with gusts as high as 25 km/h. Sunday: Mostly sunny, with a high near 26. East northeast wind 5 to 15 km/h. Sunday Night: Partly cloudy, with a low around 17. East northeast wind 5 to 10 km/h. Labor Day: Mostly sunny, with a high near 27. Monday Night: Mostly cloudy, with a low around 18. Tuesday: Partly sunny, with a high near 30. Tuesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 22. Wednesday: Partly sunny, with a high near 31. Wednesday Night: Partly cloudy, with a low around 18. Thursday: Mostly sunny, with a high near 26. Thursday Night: Partly cloudy, with a low around 16. Friday: Partly sunny, with a high near 27. | |
| Mundelein IL 42.26°N 88°W | |
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