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

38°F

3°C

Humidity 67%
Wind Speed S 10 mph
Barometer 30.00 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 13 Jan 2:55 am CST
Extended Forecast for

3 Miles SSW Piasa IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. South wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 59. West wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 59 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 34. West wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 34 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a temperature falling to around 29 by 5pm. Breezy, with a north wind 15 to 22 mph, with gusts as high as 31 mph.

    High: 36 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. Northwest wind 9 to 17 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 31.

    High: 31 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 41. Breezy.

    High: 41 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. South wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday
Increasing clouds, with a high near 59. West wind 10 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 34. West wind 9 to 14 mph, with gusts as high as 22 mph.
Wednesday
Partly sunny, with a temperature falling to around 29 by 5pm. Breezy, with a north wind 15 to 22 mph, with gusts as high as 31 mph.
Wednesday Night
Mostly clear, with a low around 16. Northwest wind 9 to 17 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 31.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 41. Breezy.
Friday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Mostly sunny, with a high near 22.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Piasa IL
 39.08°N 90.15°W (Elev. 610 ft)
Last Update:
2:41 am CST Jan 13, 2026
Forecast Valid:
3am CST Jan 13, 2026-6pm CST Jan 19, 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