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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

93°F

34°C

Humidity 32%
Wind Speed Vrbl 6 mph
Barometer 29.86 in (1010.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 12 Oct 2:53 pm CDT
Extended Forecast for

Grantwood Village MO

  • Tonight

    Tonight: Mostly clear, with a low around 70. Southwest wind 6 to 8 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. Heat index values as high as 101. Southwest wind 6 to 8 mph.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 71. South wind 5 to 8 mph. Chance of precipitation is 60%.

    Low: 71 °F

    Mostly Clear
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 81. Light and variable wind. Chance of precipitation is 100%.

    High: 81 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 70. Southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 96. Heat index values as high as 101. Southwest wind 6 to 8 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 71. South wind 5 to 8 mph. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm. High near 81. Light and variable wind. Chance of precipitation is 100%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grantwood Village MO
 38.56°N 90.35°W (Elev. 551 ft)
Last Update:
1:25 pm CDT Oct 12, 2026
Forecast Valid:
3pm CDT Oct 12, 2026-6pm CDT Oct 19, 2026
 
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