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.

Light Rain and Breezy

64°F

18°C

Humidity 88%
Wind Speed S 21 G 29 mph
Barometer 29.53 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 8 Jan 6:55 pm CST
Extended Forecast for

Aviston IL

  • Tonight

    Tonight: Rain and possibly a thunderstorm before 10pm, then a chance of rain and thunderstorms between 10pm and midnight. Low around 48. Breezy, with a south wind 16 to 24 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 80%.

    Low: 48 °F

    Rain and
    Breezy then
    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 54. West wind 11 to 16 mph becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 54 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Calm wind becoming northwest around 5 mph after midnight.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 45. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 45 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. West wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain and possibly a thunderstorm before 10pm, then a chance of rain and thunderstorms between 10pm and midnight. Low around 48. Breezy, with a south wind 16 to 24 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 80%.
Friday
Mostly cloudy, with a high near 54. West wind 11 to 16 mph becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Calm wind becoming northwest around 5 mph after midnight.
Saturday
A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 45. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 24. West wind 9 to 14 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Aviston IL
 38.62°N 89.61°W (Elev. 482 ft)
Last Update:
3:57 pm CST Jan 8, 2026
Forecast Valid:
7pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation