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.

Fair

54°F

12°C

Humidity 72%
Wind Speed SW 7 mph
Barometer 30.01 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 5 Nov 6:50 am CST
Extended Forecast for

2 Miles WSW Alton IL

  • Today

    Today: Sunny, with a high near 69. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 23 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 38. North wind 5 to 7 mph becoming light and variable.

    Low: 38 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 54. Southeast wind 9 to 11 mph becoming southwest after midnight.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 73. West wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 73 °F

    Slight Chance
    Rain then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 69. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 23 mph.
Tonight
Clear, with a low around 38. North wind 5 to 7 mph becoming light and variable.
Thursday
Sunny, with a high near 65. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.
Thursday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 54. Southeast wind 9 to 11 mph becoming southwest after midnight.
Friday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 73. West wind 9 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 43.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 67.
Saturday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 28.
Veterans Day
Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Alton IL
 38.88°N 90.19°W (Elev. 407 ft)
Last Update:
6:31 am CST Nov 5, 2025
Forecast Valid:
7am CST Nov 5, 2025-6pm CST Nov 11, 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