Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

55°F

13°C

Humidity 47%
Wind Speed NE 5 mph
Barometer 30.56 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 17 Oct 12:50 pm CDT
Extended Forecast for

Mount Olive IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 59. Light northeast wind.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 4am.  Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly between 7am and 8am.  Otherwise, sunny, with a high near 69. Calm wind becoming south 5 to 7 mph in the morning.

    High: 69 °F

    Frost then
    Sunny

  • Sunday Night

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

    Low: 36 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Calm wind.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 59. Light northeast wind.
Tonight
Areas of frost after 4am. Otherwise, clear, with a low around 34. Calm wind.
Sunday
Widespread frost, mainly between 7am and 8am. Otherwise, sunny, with a high near 69. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 36. Light southeast wind.
Monday
Sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mount Olive IL
 39.09°N 89.73°W (Elev. 676 ft)
12:46 pm CDT Oct 17, 2026
1pm CDT Oct 17, 2026-6pm CDT Oct 23, 2026
 
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