7-Day Forecast 40.04°N 87.81°W (Text-Only)
NWS Forecast for: Fairmount IL
Issued by: National Weather Service Lincoln, IL
Last Update: 3:36 am CDT Oct 16, 2026




Today: A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 12. West northwest wind around 27 km/h, with gusts as high as 48 km/h.

Tonight: A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 3. North wind 24 to 29 km/h decreasing to 16 to 21 km/h after midnight. Winds could gust as high as 48 km/h.

Saturday: Sunny, with a high near 14. North wind 5 to 10 km/h becoming calm in the afternoon.

Saturday Night: Areas of frost after 2am. Otherwise, clear, with a low around 1. Calm wind.

Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 19. Light south wind increasing to 6 to 11 km/h in the morning.

Sunday Night: Mostly clear, with a low around 3. Calm wind.

Monday: Sunny, with a high near 22. Calm wind.

Monday Night: Partly cloudy, with a low around 5.

Tuesday: Sunny, with a high near 24.

Tuesday Night: Mostly clear, with a low around 7.

Wednesday: Sunny, with a high near 25.

Wednesday Night: Mostly clear, with a low around 8.

Thursday: Sunny, with a high near 26.



Fairmount IL
 40.04°N 87.81°W (Elev. 676 m)

Visit your local NWS office at: https://www.weather.gov/ilx