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.

Mostly Cloudy

32°F

0°C

Humidity 64%
Wind Speed S 12 mph
Barometer 30.15 in (1022.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 8 Dec 10:51 pm CST
Extended Forecast for

Wellston MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. South wind around 9 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 52. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.

    High: 52 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 48. South wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 26 mph.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a temperature falling to around 37 by 5pm. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 41 mph.

    High: 46 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27. Northwest wind 5 to 9 mph becoming light west after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. South wind around 9 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 52. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 48. South wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 26 mph.
Wednesday
Partly sunny, with a temperature falling to around 37 by 5pm. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 41 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Northwest wind 5 to 9 mph becoming light west after midnight.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Partly sunny, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
A 20 percent chance of rain. Mostly cloudy, with a high near 38.
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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:
8:31 pm CST Dec 8, 2025
Forecast Valid:
11pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
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