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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Mount Olive IL

Freeze Warning November 2, 01:00am until November 2, 07:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. West wind 7 to 9 mph.

    High: 51 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Widespread frost, mainly after midnight. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 29. Light northwest wind.

    Low: 29 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, sunny, with a high near 55. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 55 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 2am. Otherwise, clear, with a low around 34. South wind 3 to 6 mph.

    Low: 34 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 63. Southwest wind 6 to 10 mph becoming west in the afternoon.

    High: 63 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. West wind 7 to 9 mph.
Tonight
Widespread frost, mainly after midnight. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 29. Light northwest wind.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 55. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Areas of frost after 2am. Otherwise, clear, with a low around 34. South wind 3 to 6 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 63. Southwest wind 6 to 10 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Clear, with a low around 39.
Thursday
Sunny, with a high near 65.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 48.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Olive IL
 39.07°N 89.73°W (Elev. 669 ft)
Last Update:
12:01 pm CDT Nov 1, 2025
Forecast Valid:
12pm CDT Nov 1, 2025-6pm CST Nov 7, 2025
 
Forecast Discussion
 
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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