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

40°F

4°C

Humidity 58%
Wind Speed Calm
Barometer 29.69 in (1005.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 25 Feb 3:51 am CST
Extended Forecast for

Sycamore Hills MO

  • Today

    Today: Partly sunny, with a high near 52. Light and variable wind becoming north around 5 mph in the morning.

    High: 52 °F

    Partly Sunny

  • Tonight

    Tonight: A 50 percent chance of rain, mainly between 9pm and 5am. Mostly cloudy, with a low around 36. Northeast wind around 6 mph.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 54. East wind around 6 mph becoming light and variable in the afternoon.

    High: 54 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. Southwest wind 5 to 10 mph.

    High: 69 °F

    Sunny

  • Friday Night

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

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Partly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 50%.

    High: 46 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Today
Partly sunny, with a high near 52. Light and variable wind becoming north around 5 mph in the morning.
Tonight
A 50 percent chance of rain, mainly between 9pm and 5am. Mostly cloudy, with a low around 36. Northeast wind around 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 54. East wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Mostly clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 69. Southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 33.
Sunday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 50%.
Sunday Night
Rain likely before midnight, then a chance of rain and snow. Some thunder is also possible. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 31.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sycamore Hills MO
 38.71°N 90.34°W (Elev. 597 ft)
Last Update:
1:51 am CST Feb 25, 2026
Forecast Valid:
4am CST Feb 25, 2026-6pm CST Mar 3, 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