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

30°F

-1°C

Humidity 92%
Wind Speed Calm
Barometer 29.97 in (1015.7 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 6 Dec 6:51 am CST
Extended Forecast for

Wellston MO

  • Today

    Today: Mostly sunny, with a high near 44. Calm wind becoming east around 6 mph in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain between 11pm and 2am. Mostly cloudy, with a low around 36. Southeast wind around 7 mph becoming south after midnight. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before noon. Mostly cloudy, with a temperature rising to near 39 by 11am, then falling to around 31 during the remainder of the day. Southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 39 °F⇓

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19. North wind 5 to 9 mph.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32. North wind around 5 mph becoming light and variable in the morning.

    High: 32 °F

    Mostly Sunny

  • Monday Night

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

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 44. Calm wind becoming east around 6 mph in the afternoon.
Tonight
A slight chance of rain between 11pm and 2am. Mostly cloudy, with a low around 36. Southeast wind around 7 mph becoming south after midnight. Chance of precipitation is 20%.
Sunday
A 20 percent chance of rain before noon. Mostly cloudy, with a temperature rising to near 39 by 11am, then falling to around 31 during the remainder of the day. Southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 19. North wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 32. North wind around 5 mph becoming light and variable in the morning.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
A slight chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 29.
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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:
6:16 am CST Dec 6, 2025
Forecast Valid:
7am CST Dec 6, 2025-6pm CST Dec 12, 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