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.

Fair

37°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.18 in (1022.5 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 1 Nov 9:54 pm CST
Extended Forecast for

2 Miles NNE O'Fallon MO

Freeze Warning November 2, 01:00am until November 2, 07:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Frost

  • Sunday

    Sunday: Patchy fog before 10am. Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Frost and
    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. Calm wind becoming southwest around 6 mph after midnight.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 65. Southwest wind around 6 mph becoming west in the afternoon.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. Calm wind.
Sunday
Patchy fog before 10am. Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 55. Light and variable wind.
Sunday Night
Clear, with a low around 37. Calm wind becoming southwest around 6 mph after midnight.
Monday
Sunny, with a high near 65. Southwest wind around 6 mph becoming west in the afternoon.
Monday Night
Partly cloudy, with a low around 41. Calm wind.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 67.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 54.
Friday
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 48.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE O'Fallon MO
 38.81°N 90.71°W (Elev. 502 ft)
Last Update:
10:26 pm CDT Nov 1, 2025
Forecast Valid:
11pm CDT Nov 1, 2025-6pm CST Nov 8, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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