St Peters Weather Forecast

    • 32
    • 55

    Chance Rain

    • 43
    • 56

    Mostly Sunny

    • 58
    • 71

    Mostly Cloudy

    • 65
    • 86

    Slight Chance Thunderstorms

    • 60
    • 88

    Chance Thunderstorms

    • 56
    • 79

    Rain Likely

Today 27 Mar St. Charles

Mostly cloudy with a chance of rain in the Morning, then mostly sunny in the afternoon. Much cooler with Highs in the mid 50s. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 27 Mar St. Charles

Mostly clear. Lows in the lower 30s. North Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

St Peters Temperature Statistics

March Temperature

St. Louis, Spirit Of St. Louis Airport (8.7 miles)

  • Lowest 17 March, 2026

    16.6 °F

  • Average March

    52.4 °F

  • Highest 22 March, 2026

    91.9 °F

Climate (2021–Present)

St. Louis, Spirit Of St. Louis Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    68.6 °F
Get WillyWeather+ to remove ads