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.

A Few Clouds

89°F

32°C

Humidity 55%
Wind Speed Vrbl 5 mph
Barometer 30.18 in (1021.5 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 7 Aug 11:53 am CDT
Extended Forecast for

Alorton IL

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly after 1pm. Mostly sunny early, then becoming cloudy, with a high near 90. South wind 5 to 8 mph. Chance of precipitation is 50%.

    High: 90 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Scattered
    T-storms

  • Friday

    Friday: Isolated showers before 9am. Sunny and hot, with a high near 97. Heat index values as high as 103. South wind 6 to 11 mph. Chance of precipitation is 20%.

    High: 97 °F

    Isolated
    Showers then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South wind 6 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96. South wind 6 to 10 mph.

    High: 96 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 1pm. Mostly sunny early, then becoming cloudy, with a high near 90. South wind 5 to 8 mph. Chance of precipitation is 50%.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.
Friday
Isolated showers before 9am. Sunny and hot, with a high near 97. Heat index values as high as 103. South wind 6 to 11 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 75. South wind 6 to 8 mph.
Saturday
Sunny, with a high near 96. South wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 95.
Sunday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 75.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alorton IL
 38.59°N 90.12°W (Elev. 413 ft)
Last Update:
12:26 pm CDT Aug 7, 2025
Forecast Valid:
12pm CDT Aug 7, 2025-6pm CDT Aug 13, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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