National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

26°F

-3°C

Humidity 55%
Wind Speed NW 17 G 33 mph
Barometer 30.36 in (1028.6 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 22 Feb 3:53 am CST
Extended Forecast for

Alorton IL

  • Today

    Today: Mostly sunny, with a high near 32. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 32 mph.

    High: 32 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 15. Northwest wind 11 to 16 mph, with gusts as high as 30 mph.

    Low: 15 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 34. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 34 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 20. Calm wind becoming south around 6 mph after midnight.

    Low: 20 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. South wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 54.

    High: 54 °F

    Chance Rain
    then Mostly
    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 32. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 32 mph.
Tonight
Partly cloudy, with a low around 15. Northwest wind 11 to 16 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 34. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 20. Calm wind becoming south around 6 mph after midnight.
Tuesday
Partly sunny, with a high near 55. South wind 7 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 41.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alorton IL
 38.59°N 90.12°W (Elev. 413 ft)
Last Update:
4:31 am CST Feb 22, 2026
Forecast Valid:
4am CST Feb 22, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation