Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

73°F

23°C

Humidity 87%
Wind Speed N 9 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 21 Sep 10:53 am CDT
Extended Forecast for

3 Miles NNE Fairmont City IL

  • Today

    Today: A slight chance of drizzle before 1pm, then a slight chance of showers and thunderstorms between 1pm and 3pm, then a slight chance of drizzle after 3pm.  Cloudy, with a high near 73. North wind 5 to 8 mph.  Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Northeast wind 6 to 8 mph.

    Low: 62 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 75. North wind 6 to 9 mph.

    High: 75 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 56. North wind 5 to 10 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. North wind 6 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of drizzle before 1pm, then a slight chance of showers and thunderstorms between 1pm and 3pm, then a slight chance of drizzle after 3pm. Cloudy, with a high near 73. North wind 5 to 8 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 62. Northeast wind 6 to 8 mph.
Tuesday
Mostly cloudy, with a high near 75. North wind 6 to 9 mph.
Tuesday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 56. North wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 76. North wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 56.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 77.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Fairmont City IL
 38.68°N 90.09°W (Elev. 404 ft)
10:11 am CDT Sep 21, 2026
11am CDT Sep 21, 2026-6pm CDT Sep 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database