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.

Overcast

12°F

-11°C

Humidity 76%
Wind Speed NW 6 mph
Barometer 30.52 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill2°F (-17°C)
Last update 31 Jan 2:15 am CST
Extended Forecast for

2 Miles WSW Alton IL

  • Overnight

    Overnight: A chance of flurries before 3am. Mostly clear, with a low around 5. Northwest wind around 10 mph.

    Low: 5 °F

    Chance
    Flurries

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 20. Wind chill values as low as -10. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 20 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 2 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 30. Calm wind becoming south 5 to 7 mph in the morning.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19. South wind around 6 mph becoming light and variable after midnight.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.

    High: 37 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries before 3am. Mostly clear, with a low around 5. Northwest wind around 10 mph.
Saturday
Mostly sunny and cold, with a high near 20. Wind chill values as low as -10. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 2. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 30. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 19. South wind around 6 mph becoming light and variable after midnight.
Monday
Mostly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 41.
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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:
9:26 pm CST Jan 30, 2026
Forecast Valid:
2am CST Jan 31, 2026-6pm CST Feb 6, 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