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.

A Few Clouds

69°F

21°C

Humidity 63%
Wind Speed E 3 mph
Barometer 30.06 in (1017.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 10 Jun 11:51 pm CDT
Extended Forecast for

Wellston MO

  • Overnight

    Overnight: Clear, with a low around 63. Light south wind.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Calm wind becoming south 5 to 8 mph in the morning.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. South wind 5 to 8 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 90. South wind 3 to 6 mph.

    High: 90 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. South wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 63. Light south wind.
Wednesday
Sunny, with a high near 90. Calm wind becoming south 5 to 8 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 68. South wind 5 to 8 mph.
Thursday
Partly sunny, with a high near 90. South wind 3 to 6 mph.
Thursday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. South wind 3 to 6 mph. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 70.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wellston MO
 38.67°N 90.29°W (Elev. 515 ft)
Last Update:
9:37 pm CDT Jun 10, 2025
Forecast Valid:
12am CDT Jun 11, 2025-6pm CDT Jun 17, 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