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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

86°F

30°C

Humidity 62%
Wind Speed N 6 mph
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 13 Aug 12:50 pm CDT
Extended Forecast for

West Alton MO

  • This Afternoon

    This Afternoon: Isolated showers. Mostly sunny, with a high near 87. North wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 87 °F

    Isolated
    Showers

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 67. North wind 3 to 5 mph.

    Low: 67 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 86. Northeast wind 3 to 5 mph.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. East wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. Calm wind becoming south around 6 mph in the morning.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Saturday Night

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

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 96.

    High: 96 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers. Mostly sunny, with a high near 87. North wind 3 to 6 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 67. North wind 3 to 5 mph.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 86. Northeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 68. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 93. Calm wind becoming south around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 96.
Sunday Night
Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Alton MO
 38.86°N 90.22°W (Elev. 427 ft)
Last Update:
12:46 pm CDT Aug 13, 2025
Forecast Valid:
1pm CDT Aug 13, 2025-6pm CDT Aug 19, 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