| NWS Forecast for: Pontiac IL Issued by: National Weather Service Chicago, IL Last Update: 2:46 am CDT Jul 15, 2026 | |
Overnight: Patchy fog. Otherwise, clear, with a low around 21. Calm wind. Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 33. Heat index values as high as 38. Calm wind. Wednesday Night: Partly cloudy, with a low around 22. Calm wind. Thursday: A slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 33. Heat index values as high as 39. Calm wind. Chance of precipitation is 30%. Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 22. Calm wind. Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 32. Chance of precipitation is 80%. Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 22. Saturday: Sunny, with a high near 32. Saturday Night: Mostly clear, with a low around 20. Sunday: Sunny, with a high near 31. Sunday Night: Partly cloudy, with a low around 21. Monday: Mostly sunny, with a high near 32. Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 21. Tuesday: Sunny, with a high near 29. | |
| Pontiac IL 40.89°N 88.62°W | |
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