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.

Mostly Cloudy

46°F

8°C

Humidity 71%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 9 Jan 5:50 pm CST
Extended Forecast for

2 Miles WSW Pierron IL

  • Tonight

    Tonight: A 20 percent chance of rain after 3am. Partly cloudy during the early evening, then becoming cloudy, with a low around 38. Northeast wind around 6 mph becoming calm.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain before 9am, then a chance of sprinkles after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 45. Northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 30%.

    High: 45 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: A chance of sprinkles and flurries before 10pm, then a chance of flurries between 10pm and midnight. Partly cloudy, with a low around 24. Northwest wind 8 to 17 mph, with gusts as high as 30 mph.

    Low: 24 °F

    Chance
    Sprinkles/Flurries
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 36. Breezy, with a northwest wind 15 to 20 mph decreasing to 6 to 11 mph in the afternoon.

    High: 36 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. Light and variable wind becoming southwest 5 to 7 mph after midnight.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain after 3am. Partly cloudy during the early evening, then becoming cloudy, with a low around 38. Northeast wind around 6 mph becoming calm.
Saturday
A chance of rain before 9am, then a chance of sprinkles after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 45. Northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 30%.
Saturday Night
A chance of sprinkles and flurries before 10pm, then a chance of flurries between 10pm and midnight. Partly cloudy, with a low around 24. Northwest wind 8 to 17 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 36. Breezy, with a northwest wind 15 to 20 mph decreasing to 6 to 11 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 24. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Monday
Sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Mostly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly cloudy, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Pierron IL
 38.78°N 89.6°W (Elev. 525 ft)
Last Update:
4:51 pm CST Jan 9, 2026
Forecast Valid:
6pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation