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.

Overcast

75°F

24°C

Humidity 78%
Wind Speed N 8 mph
Barometer 29.98 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Jun 5:50 pm CDT
Extended Forecast for

Mount Olive IL

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 64. North wind 5 to 8 mph.

    Low: 64 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. Northeast wind around 7 mph.

    High: 82 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67. East wind 3 to 5 mph.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 68. Light southeast wind. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 64. North wind 5 to 8 mph.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. Northeast wind around 7 mph.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67. East wind 3 to 5 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 68. Light southeast wind. Chance of precipitation is 30%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 90.
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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:
6:06 pm CDT Jun 14, 2025
Forecast Valid:
6pm CDT Jun 14, 2025-6pm CDT Jun 21, 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