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.

Fog/Mist

52°F

11°C

Humidity 94%
Wind Speed E 5 mph
Barometer 30.08 in
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Wind Chill51°F (11°C)
Last update 4 Mar 9:45 am CST
Extended Forecast for

West Alton MO

  • Today

    Today: Showers and thunderstorms, mainly before 4pm. Patchy fog before noon. High near 60. East wind around 5 mph becoming light and variable in the afternoon. Chance of precipitation is 80%.

    High: 60 °F

    Showers
    Likely and
    Patchy Fog
    then T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Patchy fog after 10pm. Low around 53. Light and variable wind. Chance of precipitation is 80%.

    Low: 53 °F

    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Scattered showers and thunderstorms before 8am, then isolated showers between 8am and 9am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 67. West wind 3 to 8 mph. Chance of precipitation is 50%.

    High: 67 °F

    Scattered
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Scattered showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 56. Calm wind becoming south 5 to 8 mph after midnight. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 79. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 79 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers before noon. Partly sunny, with a high near 65.

    High: 65 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly before 4pm. Patchy fog before noon. High near 60. East wind around 5 mph becoming light and variable in the afternoon. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Patchy fog after 10pm. Low around 53. Light and variable wind. Chance of precipitation is 80%.
Thursday
Scattered showers and thunderstorms before 8am, then isolated showers between 8am and 9am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 67. West wind 3 to 8 mph. Chance of precipitation is 50%.
Thursday Night
Scattered showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 56. Calm wind becoming south 5 to 8 mph after midnight. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 79. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 53. Chance of precipitation is 90%.
Saturday
A 40 percent chance of showers before noon. Partly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 78.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 60.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
West Alton MO
 38.86°N 90.22°W (Elev. 427 ft)
Last Update:
10:26 am CST Mar 4, 2026
Forecast Valid:
10am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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