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

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

66°F

19°C

Humidity 90%
Wind Speed Calm
Barometer 30.02 in (1015.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 12 Jun 5:54 am CDT
Extended Forecast for

Saint Peters MO

  • Today

    Today: A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 81. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 2am. Cloudy, with a low around 69. Southeast wind 3 to 5 mph.

    Low: 69 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 80. Southeast wind 5 to 8 mph. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 84. Light and variable wind becoming northwest around 6 mph in the morning. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 81. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 20%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 2am. Cloudy, with a low around 69. Southeast wind 3 to 5 mph.
Friday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 80. Southeast wind 5 to 8 mph. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 50%.
Saturday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 84. Light and variable wind becoming northwest around 6 mph in the morning. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Peters MO
 38.78°N 90.59°W (Elev. 492 ft)
Last Update:
5:52 am CDT Jun 12, 2025
Forecast Valid:
6am CDT Jun 12, 2025-6pm CDT Jun 18, 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