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.

Thunderstorm Rain

59°F

15°C

Humidity 94%
Wind Speed S 9 mph
Barometer 29.90 in
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 7 Mar 6:45 am CST
Extended Forecast for

Mount Olive IL

  • Today

    Today: Rain and thunderstorms before 9am, then a chance of rain between 9am and 11am. Temperature rising to near 64 by 10am, then falling to around 54 during the remainder of the day. South wind 11 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 80%.

    High: 64 °F⇓

    Rain then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Northwest wind 6 to 11 mph becoming light west after midnight.

    Low: 35 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 63. Southwest wind 5 to 10 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44. South wind 7 to 9 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75. South wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after midnight. Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain, then rain and possibly a thunderstorm after noon. High near 77. Chance of precipitation is 80%.

    High: 77 °F

    Chance Rain
    then Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 51. Breezy. Chance of precipitation is 90%.

    Low: 51 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before noon, then a chance of rain. High near 61. Breezy. Chance of precipitation is 80%.

    High: 61 °F

    Breezy. Rain
    then Chance
    Rain

Detailed Forecast

Today
Rain and thunderstorms before 9am, then a chance of rain between 9am and 11am. Temperature rising to near 64 by 10am, then falling to around 54 during the remainder of the day. South wind 11 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 80%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Northwest wind 6 to 11 mph becoming light west after midnight.
Sunday
Sunny, with a high near 63. Southwest wind 5 to 10 mph.
Sunday Night
Clear, with a low around 44. South wind 7 to 9 mph.
Monday
Sunny, with a high near 75. South wind 9 to 15 mph, with gusts as high as 23 mph.
Monday Night
A 30 percent chance of rain, mainly after midnight. Mostly clear, with a low around 56.
Tuesday
A chance of rain, then rain and possibly a thunderstorm after noon. High near 77. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 51. Breezy. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before noon, then a chance of rain. High near 61. Breezy. Chance of precipitation is 80%.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 62. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Olive IL
 39.07°N 89.73°W (Elev. 669 ft)
Last Update:
5:21 am CST Mar 7, 2026
Forecast Valid:
7am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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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