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 and Breezy

52°F

11°C

Humidity 88%
Wind Speed NW 22 G 33 mph
Barometer 30.24 in
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Wind Chill46°F (8°C)
Last update 16 Oct 1:50 pm CDT
Extended Forecast for

Aviston IL

  • This Afternoon

    This Afternoon: Scattered showers, mainly after 3pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind 20 to 23 mph. Chance of precipitation is 40%.

    High: 54 °F

    Scattered
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 38. North wind 10 to 16 mph.

    Low: 38 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Sunny, with a high near 61. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 33. Calm wind.

    Low: 33 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers, mainly after 3pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind 20 to 23 mph. Chance of precipitation is 40%.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 38. North wind 10 to 16 mph.
Saturday
Sunny, with a high near 61. North wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Clear, with a low around 33. Calm wind.
Sunday
Sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 37.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 44.
Thursday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Aviston IL
 38.62°N 89.61°W (Elev. 482 ft)
Last Update:
1:26 pm CDT Oct 16, 2026
Forecast Valid:
2pm CDT Oct 16, 2026-6pm CDT Oct 22, 2026
 
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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