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.

Mostly Cloudy

70°F

21°C

Humidity 97%
Wind Speed N 5 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 21 Sep 6:53 am CDT
Extended Forecast for

2 Miles SE Belleville IL

  • Today

    Today: A slight chance of showers between 1pm and 3pm.  Cloudy, with a high near 77. Calm wind becoming north 5 to 8 mph in the morning.  Chance of precipitation is 20%.

    High: 77 °F

    Cloudy then
    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Northeast wind 5 to 9 mph.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 75. North wind 6 to 10 mph.

    High: 75 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. Northeast wind 5 to 10 mph.

    Low: 56 °F

    Partly Cloudy

  • 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 55.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers between 1pm and 3pm. Cloudy, with a high near 77. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 63. Northeast wind 5 to 9 mph.
Tuesday
Mostly cloudy, with a high near 75. North wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 56. Northeast 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 55.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
Partly sunny, with a high near 76.
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:
2 Miles SE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
6:46 am CDT Sep 21, 2026
7am 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