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.

Overcast

76°F

24°C

Humidity 82%
Wind Speed SW 3 mph
Barometer 29.91 in (1011.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 4 Jul 6:51 pm CDT
Extended Forecast for

2 Miles WSW Saint Ann MO

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 73. Light and variable wind.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 89 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 71. North wind 5 to 7 mph becoming calm in the evening.

    Low: 71 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88. Northeast wind 3 to 7 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 73. Light and variable wind.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 71. North wind 5 to 7 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 88. Northeast wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 70. Northeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Thursday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Saint Ann MO
 38.71°N 90.43°W (Elev. 518 ft)
Last Update:
5:51 pm CDT Jul 4, 2026
Forecast Valid:
8pm CDT Jul 4, 2026-6pm CDT Jul 11, 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