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

75°F

24°C

Humidity 69%
Wind Speed SE 10 mph
Barometer 29.97 in (1013.4 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 31 Jul 4:51 am CDT
Extended Forecast for

Sycamore Hills MO

  • Today

    Today: Showers and thunderstorms, mainly before 1pm. High near 84. South wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 1am. Low around 70. South wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    Low: 70 °F

    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. West wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 77 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 81. North wind around 13 mph, with gusts as high as 22 mph.

    High: 81 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm. Sunny, with a high near 87.

    High: 87 °F

    Sunny then
    Slight Chance
    Showers

Detailed Forecast

Today
Showers and thunderstorms, mainly before 1pm. High near 84. South wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms, mainly before 1am. Low around 70. South wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Saturday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. West wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 81. North wind around 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 67.
Tuesday
A 20 percent chance of showers after 1pm. Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sycamore Hills MO
 38.71°N 90.34°W (Elev. 597 ft)
Last Update:
2:47 am CDT Jul 31, 2026
Forecast Valid:
5am CDT Jul 31, 2026-6pm CDT Aug 6, 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