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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy

45°F

7°C

Humidity 93%
Wind Speed W 8 mph
Barometer 29.75 in (1007.5 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 14 Jan 2:54 am CST
Extended Forecast for

2 Miles NW O'Fallon MO

  • Overnight

    Overnight: Partly cloudy, with a low around 38. West wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Scattered sprinkles and flurries between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 30 by 5pm. Breezy, with a northwest wind 13 to 20 mph, with gusts as high as 36 mph.

    High: 39 °F⇓

    Breezy.
    Scattered
    Sprinkles/Flurries
    then
    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Clear, with a low around 18. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.

    Low: 18 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 35. Northwest wind around 6 mph becoming south in the afternoon.

    High: 35 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 29. South wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 29 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 38. West wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday
Scattered sprinkles and flurries between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 30 by 5pm. Breezy, with a northwest wind 13 to 20 mph, with gusts as high as 36 mph.
Wednesday Night
Clear, with a low around 18. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.
Thursday
Increasing clouds, with a high near 35. Northwest wind around 6 mph becoming south in the afternoon.
Thursday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 29. South wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 43.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 26.
Saturday Night
Mostly clear, with a low around 9.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 15.
M.L.King Day
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 35.
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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:
3:16 am CST Jan 14, 2026
Forecast Valid:
3am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
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Additional Resources

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