Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

73°F

23°C

Humidity 57%
Wind Speed SE 6 mph
Barometer 30.00 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Oct 6:50 pm CDT
Extended Forecast for

Mount Olive IL

  • Tonight

    Tonight: Increasing clouds, with a low around 58. Southeast wind 7 to 9 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 81. South wind 8 to 11 mph.

    High: 81 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 10am.  High near 80. Southwest wind 9 to 14 mph.  Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Saturday Night

    Saturday Night: Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am.  Low around 47. Southwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers.  Partly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 58. Southeast wind 7 to 9 mph.
Friday
Partly sunny, with a high near 81. South wind 8 to 11 mph.
Friday Night
Partly cloudy, with a low around 62. South wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 80. Southwest wind 9 to 14 mph. Chance of precipitation is 90%.
Saturday Night
Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Low around 47. Southwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%.
Sunday
Sunny, with a high near 63.
Sunday Night
Clear, with a low around 42.
Monday
Sunny, with a high near 71.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 47.
Tuesday
A 20 percent chance of showers before 1pm. Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Olive IL
 39.07°N 89.73°W (Elev. 669 ft)
6:01 pm CDT Oct 16, 2025
7pm CDT Oct 16, 2025-6pm CDT Oct 23, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database