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Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

41°F

5°C

Humidity 87%
Wind Speed N 6 mph
Barometer 30.54 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 17 Oct 6:50 am CDT
Extended Forecast for

3 Miles SSW Coffeen IL

Frost Advisory October 18, 01:00am until October 18, 09:00am
Frost Advisory October 17, 07:59am until October 17, 09:00am
Click here for hazard details and duration
Frost Advisory
...
  •  
    Frost Advisory October 17, 07:59am until October 17, 09:00am

    NOW until 9:00am Sat

    Frost Advisory

  • Today

    High: 60 °F

    Areas Frost
    then Sunny

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, clear, with a low around 33. Calm wind.

    Low: 33 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming south around 6 mph in the morning.

    High: 66 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 36. Calm wind.

    Low: 36 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71. Calm wind.

    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

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Today
Areas of frost before 8am. Otherwise, sunny, with a high near 60. North wind around 5 mph becoming calm in the morning.
Tonight
Areas of frost after 4am. Otherwise, clear, with a low around 33. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming south around 6 mph in the morning.
Sunday Night
Clear, with a low around 36. Calm wind.
Monday
Sunny, with a high near 71. Calm wind.
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 78.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Coffeen IL
 39.06°N 89.41°W (Elev. 561 ft)
Last Update:
6:26 am CDT Oct 17, 2026
Forecast Valid:
7am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation