| NWS Forecast for: Fairmount IL Issued by: National Weather Service Lincoln, IL Last Update: 3:36 pm CDT Oct 11, 2026 |  |
| Tonight: Mostly clear, with a low around 14. Calm wind becoming south 5 to 8 km/h after midnight. Columbus Day: Sunny, with a high near 32. Southwest wind 8 to 13 km/h increasing to 16 to 21 km/h in the afternoon. Winds could gust as high as 32 km/h. Monday Night: Clear, with a low around 21. South southwest wind around 14 km/h, with gusts as high as 29 km/h. Tuesday: Sunny, with a high near 33. West southwest wind 14 to 21 km/h, with gusts as high as 32 km/h. Tuesday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 19. Calm wind. Wednesday: Showers. High near 27. North wind 5 to 8 km/h becoming south in the morning. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 cm possible. Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 15. Northeast wind around 11 km/h. Thursday: Showers likely. Mostly cloudy, with a high near 23. Chance of precipitation is 70%. Thursday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 60%. Friday: Partly sunny, with a high near 18. Breezy. Friday Night: Partly cloudy, with a low around 3. Breezy. Saturday: Sunny, with a high near 14. Saturday Night: Mostly clear, with a low around 1. Sunday: Sunny, with a high near 18. | |
| Fairmount IL 40.04°N 87.81°W (Elev. 676 m) | |
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