National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Mostly Cloudy

53°F

12°C

Humidity 68%
Wind Speed NA
Barometer 29.81 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 6 Nov 11:15 pm CST
Extended Forecast for

Aviston IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. South wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 71 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. West wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Partly sunny, with a high near 66. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 66 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 35. Southwest wind 9 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 35 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42. Breezy.

    High: 42 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Monday Night

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

    Low: 24 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 52. South wind 9 to 14 mph, with gusts as high as 23 mph.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 9 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 42. West wind around 6 mph becoming calm in the evening.
Saturday
A 20 percent chance of rain after noon. Partly sunny, with a high near 66. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Saturday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 35. Southwest wind 9 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Sunday
Mostly sunny, with a high near 42. Breezy.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Sunny, with a high near 42.
Monday Night
Mostly clear, with a low around 24.
Veterans Day
Mostly sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Sunny, with a high near 61.
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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:
10:46 pm CST Nov 6, 2025
Forecast Valid:
11pm CST Nov 6, 2025-6pm CST Nov 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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