7-Day Forecast 38.78°N 90.59°W (Text-Only)
NWS Forecast for: Saint Peters MO
Issued by: National Weather Service Saint Louis, MO
Last Update: 2:37 am CDT Jun 25, 2024
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  • Overnight

    Overnight: Mostly clear, with a low around 79. Calm wind becoming southwest around 5 mph.

    Low: 79 °F

    Mostly Clear


  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 108. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 101 °F

    Hot


  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms, mainly after 1am.  Low around 72. South wind 5 to 8 mph becoming north in the evening.  Chance of precipitation is 80%.

    Low: 72 °F

    Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 9am.  High near 86. Southeast wind 6 to 10 mph becoming northwest in the morning.  Chance of precipitation is 80%.

    High: 86 °F

    T-storms then
    Chance
    T-storms

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 66. North wind 5 to 8 mph becoming calm  after midnight.

    Low: 66 °F

    Mostly Clear


  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny


  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around 71.

    Low: 71 °F

    Mostly Cloudy


  • Friday

    Friday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    T-storms

  • Friday
    Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms



  • Overnight: Mostly clear, with a low around 79. Calm wind becoming southwest around 5 mph.

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 108. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Tuesday Night: Showers and thunderstorms, mainly after 1am. Low around 72. South wind 5 to 8 mph becoming north in the evening. Chance of precipitation is 80%.

    Wednesday: Showers and thunderstorms, mainly before 9am. High near 86. Southeast wind 6 to 10 mph becoming northwest in the morning. Chance of precipitation is 80%.

    Wednesday Night: Mostly clear, with a low around 66. North wind 5 to 8 mph becoming calm after midnight.

    Thursday: Sunny, with a high near 89.

    Thursday Night: Mostly cloudy, with a low around 71.

    Friday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94.

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 78.

    Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.

    Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

    Sunday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.

    Sunday Night: Partly cloudy, with a low around 67.

    Monday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.



    Saint Peters MO
     38.78°N 90.59°W (Elev. 492 ft)

    Visit your local NWS office at: https://www.weather.gov/lsx/