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.

Fair

52°F

11°C

Humidity 86%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 9 Oct 1:15 am CDT
Extended Forecast for

2 Miles WNW Coffeen IL

  • Overnight

    Overnight: Patchy fog. Otherwise, clear, with a low around 51. Calm wind.

    Low: 51 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 58. Southeast wind 3 to 5 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 79. Southeast wind 3 to 8 mph.

    High: 79 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 56. East wind 3 to 7 mph.

    Low: 56 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, clear, with a low around 51. Calm wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
Increasing clouds, with a low around 58. Southeast wind 3 to 5 mph.
Saturday
Mostly cloudy, with a high near 79. Southeast wind 3 to 8 mph.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 56. East wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 57.
Columbus Day
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 65.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 86.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 59.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 80.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Coffeen IL
 39.1°N 89.41°W (Elev. 600 ft)
Last Update:
1:25 am CDT Oct 9, 2026
Forecast Valid:
1am CDT Oct 9, 2026-6pm CDT Oct 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation