National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Overcast and Breezy

46°F

8°C

Humidity 73%
Wind Speed W 24 G 40 mph
Barometer 29.75 in (1007.2 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 28 Dec 4:54 pm CST
Extended Forecast for

2 Miles NW O'Fallon MO

Wind Advisory until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 29, 06:00am

    NOW until 6:00am Mon

    Wind Advisory

  • This Afternoon

    High: 45 °F

    Cloudy and
    Breezy

  • Tonight

    Tonight: A slight chance of rain before 9pm, then a slight chance of snow between 9pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 19. Breezy, with a west wind 23 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    Low: 19 °F

    Breezy.
    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30. Blustery, with a northwest wind 14 to 23 mph, with gusts as high as 38 mph.

    High: 30 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. West wind 6 to 9 mph.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Cloudy, with a steady temperature around 45. Breezy, with a west wind around 23 mph, with gusts as high as 38 mph.
Tonight
A slight chance of rain before 9pm, then a slight chance of snow between 9pm and 10pm. Cloudy during the early evening, then gradual clearing, with a low around 19. Breezy, with a west wind 23 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 30. Blustery, with a northwest wind 14 to 23 mph, with gusts as high as 38 mph.
Monday Night
Mostly clear, with a low around 17. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 37. West wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 25.
New Year's Day
Mostly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW O'Fallon MO
 38.81°N 90.74°W (Elev. 499 ft)
Last Update:
4:21 pm CST Dec 28, 2025
Forecast Valid:
5pm CST Dec 28, 2025-6pm CST Jan 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation