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

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

25°F

-4°C

Humidity 81%
Wind Speed W 7 mph
Barometer 30.09 in (1020.4 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 2 Dec 2:51 pm CST
Extended Forecast for

Wellston MO

  • Tonight

    Tonight: Mostly clear, with a low around 21. Calm wind becoming south around 5 mph in the evening.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 40. South wind around 6 mph becoming northwest in the afternoon.

    High: 40 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after 9pm. Cloudy, with a low around 15. North wind 6 to 10 mph.

    Low: 15 °F

    Slight Chance
    Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 23. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 23 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14. Calm wind.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Friday Night

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

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 21. Calm wind becoming south around 5 mph in the evening.
Wednesday
Increasing clouds, with a high near 40. South wind around 6 mph becoming northwest in the afternoon.
Wednesday Night
A 20 percent chance of snow after 9pm. Cloudy, with a low around 15. North wind 6 to 10 mph.
Thursday
Mostly sunny, with a high near 23. North wind 5 to 7 mph becoming calm in the afternoon.
Thursday Night
Partly cloudy, with a low around 14. Calm wind.
Friday
Mostly sunny, with a high near 38.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A slight chance of snow before noon, then a slight chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 35.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wellston MO
 38.67°N 90.32°W (Elev. 499 ft)
Last Update:
3:16 pm CST Dec 2, 2025
Forecast Valid:
3pm CST Dec 2, 2025-6pm CST Dec 9, 2025
 
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