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.

Fair

2°F

-17°C

Humidity 56%
Wind Speed NW 7 mph
Barometer 30.38 in
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 26 Jan 1:55 am CST
Extended Forecast for

2 Miles WSW Alton IL

Cold Weather Advisory January 26, 06:00pm until January 27, 06:00am
Extreme Cold Warning January 26, 02:12am until January 26, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 02:12am until January 26, 12:00pm

    NOW until 12:00pm Mon

    Extreme Cold Warning

  • Overnight

    Low: -6 °F

    Mostly Clear

  • Monday

    Monday: Sunny and cold, with a high near 16. Wind chill values as low as -20. Northwest wind 8 to 10 mph becoming southwest in the afternoon.

    High: 16 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a temperature falling to near 4 by 9pm, then rising to around 12 during the remainder of the night. Wind chill values as low as -10. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 4 °F⇑

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 30. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 30 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -1. Northwest wind around 6 mph becoming calm in the evening.

    Low: -1 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy and cold, with a high near 20.

    High: 20 °F

    Cold

Detailed Forecast

Overnight
Mostly clear, with a low around -6. Wind chill values as low as -20. Northwest wind around 8 mph.
Monday
Sunny and cold, with a high near 16. Wind chill values as low as -20. Northwest wind 8 to 10 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a temperature falling to near 4 by 9pm, then rising to around 12 during the remainder of the night. Wind chill values as low as -10. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 30. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around -1. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 30.
Wednesday Night
Mostly cloudy, with a low around 4.
Thursday
Mostly cloudy and cold, with a high near 20.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Mostly sunny and cold, with a high near 17.
Friday Night
Mostly clear, with a low around -2.
Saturday
Mostly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 30.
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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:
2:06 am CST Jan 26, 2026
Forecast Valid:
2am CST Jan 26, 2026-6pm CST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation