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

72°F

22°C

Humidity 83%
Wind Speed S 10 mph
Barometer 29.62 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 17 Jun 7:50 am CDT
Extended Forecast for

Aviston IL

Wind Advisory June 17, 01:00pm until June 17, 08:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 90. Breezy, with a south wind 10 to 15 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 20%.

    High: 90 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Breezy, with a west wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%.

    Low: 68 °F

    T-storms
    Likely and
    Breezy then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers. Increasing clouds, with a high near 80. Northwest wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 90. Breezy, with a south wind 10 to 15 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Breezy, with a west wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%.
Thursday
A chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers. Increasing clouds, with a high near 80. Northwest wind 7 to 9 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 90%.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 80.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 62.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Aviston IL
 38.62°N 89.61°W (Elev. 482 ft)
Last Update:
7:56 am CDT Jun 17, 2026
Forecast Valid:
8am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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