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.

Partly Cloudy

78°F

26°C

Humidity 71%
Wind Speed NE 7 mph
Barometer 29.96 in (1013.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Aug 11:51 pm CDT
Extended Forecast for

Sunset Hills MO

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 70. Light north wind.

    Low: 70 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Light north wind.

    High: 88 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. Southeast wind 3 to 5 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming south around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 70. Light north wind.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Light north wind.
Thursday Night
Mostly clear, with a low around 72. Southeast wind 3 to 5 mph.
Friday
Sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Mostly sunny and hot, with a high near 97.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sunset Hills MO
 38.56°N 90.43°W (Elev. 531 ft)
Last Update:
10:21 pm CDT Aug 13, 2025
Forecast Valid:
12am CDT Aug 14, 2025-6pm CDT Aug 20, 2025
 
Forecast Discussion
 
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Additional Resources

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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