Wentzville Weather Forecast

    • 57
    • 82

    Increasing Clouds

    • 63
    • 82

    Rain Showers Likely

    • 64
    • 83

    Rain Showers Likely

    • 65
    • 84

    Rain Showers Likely

    • 63
    • 80

    Rain Showers Likely

    • 60
    • 77

    Chance Rain Showers

Today 25 May St. Charles

Mostly sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 25 May St. Charles

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Wentzville Temperature Statistics

May Temperature

St. Louis, Spirit Of St. Louis Airport (14.9 miles)

  • Lowest 7 May, 2026

    36.6 °F

  • Average May

    62.6 °F

  • Highest 17 May, 2026

    86.6 °F

Climate (2021–Present)

St. Louis, Spirit Of St. Louis Airport (14.9 miles)

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

  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    68.8 °F
Get WillyWeather+ to remove ads