Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

48°F

9°C

Humidity 66%
Wind Speed NW 10 mph
Barometer 30.09 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 9 Jan 11:50 am CST
Extended Forecast for

2 Miles WSW Alton IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 50. Northwest wind 6 to 10 mph becoming northeast.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 36. Northeast wind around 6 mph becoming calm.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 7am.  Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 47 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. Northwest wind 10 to 14 mph, with gusts as high as 29 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 37. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 37 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 50. Northwest wind 6 to 10 mph becoming northeast.
Tonight
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 36. Northeast wind around 6 mph becoming calm.
Saturday
A 20 percent chance of rain before 7am. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 24. Northwest wind 10 to 14 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 37. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 26.
Monday
Sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Alton IL
 38.88°N 90.19°W (Elev. 407 ft)
11:17 am CST Jan 9, 2026
12pm CST Jan 9, 2026-6pm CST Jan 15, 2026
 
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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