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.

Fair

37°F

3°C

Humidity 65%
Wind Speed SW 7 mph
Barometer 29.91 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 13 Jan 6:50 am CST
Extended Forecast for

Mount Olive IL

  • Today

    Today: Increasing clouds, with a high near 59. West wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 59 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 34. West wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 34 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a temperature falling to around 28 by 5pm. Breezy, with a northwest wind 14 to 23 mph.

    High: 37 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. North wind 9 to 16 mph, with gusts as high as 24 mph.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 29. Northwest wind 6 to 8 mph becoming south in the afternoon.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a temperature rising to around 29 by 2am.

    Low: 24 °F⇑

    Chance Snow

  • Friday

    Friday: Mostly cloudy, with a high near 40. Breezy.

    High: 40 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 59. West wind 10 to 16 mph, with gusts as high as 26 mph.
Tonight
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 34. West wind 9 to 14 mph, with gusts as high as 21 mph.
Wednesday
Partly sunny, with a temperature falling to around 28 by 5pm. Breezy, with a northwest wind 14 to 23 mph.
Wednesday Night
Mostly clear, with a low around 15. North wind 9 to 16 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 29. Northwest wind 6 to 8 mph becoming south in the afternoon.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a temperature rising to around 29 by 2am.
Friday
Mostly cloudy, with a high near 40. Breezy.
Friday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Mostly sunny, with a high near 22.
Sunday Night
Partly cloudy, with a low around 10.
M.L.King Day
Mostly sunny, with a high near 30.
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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 Jan 13, 2026
Forecast Valid:
7am CST Jan 13, 2026-6pm CST Jan 19, 2026
 
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