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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Light Rain

68°F

20°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 14 Oct 6:15 am CDT
Extended Forecast for

2 Miles N West Alton MO

  • Today

    Today: Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 79. West wind around 7 mph becoming north in the afternoon. Chance of precipitation is 80%.

    High: 79 °F

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 65. North wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog between 10am and 11am. High near 83. East wind 7 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 80%.

    High: 83 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. West wind 9 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Friday

    Friday: Mostly sunny, with a high near 62. Breezy, with a northwest wind 21 to 23 mph, with gusts as high as 32 mph.

    High: 62 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 79. West wind around 7 mph becoming north in the afternoon. Chance of precipitation is 80%.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 65. North wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog between 10am and 11am. High near 83. East wind 7 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. West wind 9 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 62. Breezy, with a northwest wind 21 to 23 mph, with gusts as high as 32 mph.
Friday Night
Mostly clear, with a low around 39.
Saturday
Sunny, with a high near 64.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N West Alton MO
 38.91°N 90.22°W (Elev. 407 ft)
Last Update:
5:06 am CDT Oct 14, 2026
Forecast Valid:
6am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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