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

Flash Flood Threats in the Northeast and Southeast; Excessive Heat in the Southwest

Heavy rain will contribute to flash and small stream flooding threats in southern New England Thursday and across portions of coastal North Carolina, Virginia and the Florida Gulf Coast through Friday. Excessive heat will continue to impact the southern California mountains and deserts into Arizona and Nevada Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

A Few Clouds

60°F

16°C

Humidity 90%
Wind Speed W 3 mph
Barometer 30.12 in (1019.3 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 5 Aug 6:54 am CDT
Extended Forecast for

Saint Peters MO

  • Today

    Today: Increasing clouds, with a high near 86. Calm wind becoming south around 6 mph in the morning.

    Increasing
    Clouds

    High: 86 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 69. Calm wind becoming south around 5 mph.

    Mostly Cloudy

    Low: 69 °F

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 88. Calm wind becoming south 5 to 7 mph in the morning.

    Chance
    Showers then
    Slight Chance
    T-storms

    High: 88 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 70. South wind 3 to 6 mph.

    Mostly Clear

    Low: 70 °F

  • Saturday

    Saturday: Sunny, with a high near 93. South wind 3 to 7 mph.

    Sunny

    High: 93 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 73.

    Partly Cloudy

    Low: 73 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

    Chance
    T-storms

    High: 93 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

    Chance
    T-storms

    Low: 76 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96.

    Slight Chance
    T-storms

    High: 96 °F

Detailed Forecast

Today
Increasing clouds, with a high near 86. Calm wind becoming south around 6 mph in the morning.
Tonight
Mostly cloudy, with a low around 69. Calm wind becoming south around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 88. Calm wind becoming south 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 70. South wind 3 to 6 mph.
Saturday
Sunny, with a high near 93. South wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Peters MO
 38.79°N 90.62°W (Elev. 499 ft)
Last Update:
6:39 am CDT Aug 5, 2021
Forecast Valid:
7am CDT Aug 5, 2021-6pm CDT Aug 11, 2021
 
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