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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

69°F

21°C

Humidity 68%
Wind Speed W 5 mph
Barometer 29.80 in (1009.0 mb)
Dewpoint 58°F (14°C)
Visibility 9.00 mi
Last update 18 Nov 11:53 am CST
Extended Forecast for

Alorton IL

  • Today

    Today: A 20 percent chance of rain and thunderstorms, mainly between 1pm and 3pm. Mostly cloudy, with a high near 70. South wind 6 to 8 mph becoming north in the afternoon.

    High: 70 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. North wind 3 to 6 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 62. Calm wind becoming northwest around 5 mph.

    High: 62 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight. Cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely before 9am, then rain likely and possibly a thunderstorm between 9am and noon, then rain likely after noon. Cloudy, with a high near 63. Southeast wind 3 to 7 mph. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 59. Chance of precipitation is 80%.

    High: 59 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of rain and thunderstorms, mainly between 1pm and 3pm. Mostly cloudy, with a high near 70. South wind 6 to 8 mph becoming north in the afternoon.
Tonight
Mostly cloudy, with a low around 46. North wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 62. Calm wind becoming northwest around 5 mph.
Wednesday Night
A 40 percent chance of rain after midnight. Cloudy, with a low around 49. Light and variable wind.
Thursday
Rain likely before 9am, then rain likely and possibly a thunderstorm between 9am and noon, then rain likely after noon. Cloudy, with a high near 63. Southeast wind 3 to 7 mph. Chance of precipitation is 70%.
Thursday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 52. Chance of precipitation is 70%.
Friday
Rain. High near 59. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 43.
Monday
A 20 percent chance of rain. Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alorton IL
 38.57°N 90.12°W (Elev. 413 ft)
Last Update:
7:26 am CST Nov 18, 2025
Forecast Valid:
11am CST Nov 18, 2025-6pm CST Nov 24, 2025
 
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