
Areas of Showers and Thunderstorms to Start the Work Week
Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Thunderstorm Heavy Rain
75°F
24°C
| Humidity | 84% |
| Wind Speed | N 7 mph |
| Barometer | 29.92 in (1012.9 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 5.00 mi |
| Last update | 20 Sep 10:53 pm CDT |
Extended Forecast for
Fairmont City IL
Overnight

Low: 68 °F
Showers
Monday
High: 75 °F
Chance
Showers then
Mostly CloudyMonday Night

Low: 62 °F
Mostly Cloudy
Tuesday

High: 75 °F
Partly Sunny
Tuesday Night

Low: 55 °F
Partly Cloudy
Wednesday

High: 76 °F
Mostly Sunny
Wednesday Night

Low: 54 °F
Mostly Clear
Thursday

High: 77 °F
Mostly Sunny
Thursday Night

Low: 57 °F
Mostly Cloudy
Detailed Forecast
Overnight
Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Low around 68. Northeast wind 3 to 7 mph. Chance of precipitation is 90%.
Monday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Mostly cloudy, with a high near 75. North wind 5 to 8 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 62. Northeast wind 5 to 9 mph.
Tuesday
Partly sunny, with a high near 75. North wind 8 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 55. Northeast wind 5 to 11 mph.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 78.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 58.
Saturday
A 20 percent chance of showers. Mostly cloudy, with a high near 80.
Saturday Night
Mostly cloudy, with a low around 59.
Sunday
Partly sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Fairmont City IL
38.66°N 90.09°W (Elev. 410 ft)
38.66°N 90.09°W (Elev. 410 ft)
11:51 pm CDT Sep 20, 2026
12am CDT Sep 21, 2026-6pm CDT Sep 27, 2026


