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

38°F

3°C

Humidity 55%
Wind Speed S 5 mph
Barometer 29.89 in (1013.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 5 Dec 7:51 pm CST
Extended Forecast for

Wellston MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. South wind 5 to 7 mph becoming west after midnight.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 39. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 39 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 32. Southeast wind 7 to 9 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 32 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of rain and snow between noon and 3pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 39. South wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 30%.

    High: 39 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19. North wind 5 to 9 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. South wind 5 to 7 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 39. Light and variable wind becoming southeast around 6 mph in the afternoon.
Saturday Night
A 30 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 32. Southeast wind 7 to 9 mph becoming south after midnight. Winds could gust as high as 20 mph.
Sunday
A chance of rain before noon, then a chance of rain and snow between noon and 3pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 39. South wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 30%.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19. North wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Mostly cloudy, with a high near 41.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Partly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wellston MO
 38.67°N 90.32°W (Elev. 499 ft)
Last Update:
4:46 pm CST Dec 5, 2025
Forecast Valid:
7pm CST Dec 5, 2025-6pm CST Dec 12, 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