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

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

59°F

15°C

Humidity 42%
Wind Speed W 14 mph
Barometer 29.97 in (1015.0 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 27 Feb 9:54 am CST
Extended Forecast for

Weldon Spring MO

Red Flag Warning February 27, 12:00pm until February 27, 06:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Sunny, with a high near 73. Southwest wind 6 to 16 mph, with gusts as high as 26 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. West wind 5 to 7 mph becoming northeast after midnight.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of rain between 1pm and 5pm. Sunny, with a high near 66. Northeast wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 20%.

    High: 66 °F

    Sunny then
    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. West wind 6 to 11 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 46. East wind around 10 mph. Chance of precipitation is 30%.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow. Low around 32. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.

    High: 43 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain. High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 73. Southwest wind 6 to 16 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 38. West wind 5 to 7 mph becoming northeast after midnight.
Saturday
A slight chance of rain between 1pm and 5pm. Sunny, with a high near 66. Northeast wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 30. West wind 6 to 11 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Sunday
A chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 46. East wind around 10 mph. Chance of precipitation is 30%.
Sunday Night
Rain and snow. Low around 32. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 36. Chance of precipitation is 60%.
Tuesday
Rain. High near 52. Chance of precipitation is 80%.
Tuesday Night
Rain likely, with thunderstorms also possible after midnight. Cloudy, with a low around 42. Chance of precipitation is 70%.
Wednesday
Rain likely. Cloudy, with a high near 61. Chance of precipitation is 60%.
Wednesday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 49. Chance of precipitation is 70%.
Thursday
Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
Last Update:
10:31 am CST Feb 27, 2026
Forecast Valid:
10am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
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