St George Weather Forecast

    • 72
    • 97

    Hot

    • 68
    • 84

    Rain Showers Likely

    • 68
    • 90

    Mostly Sunny

    • 72
    • 95

    Partly Sunny

    • 74
    • 98

    Slight Chance Thunderstorms

    • 74
    • 98

    Chance Rain Showers

Today 5 Sep Lower Washington County

Sunny. Highs in the mid 90s.

Tonight 5 Sep Lower Washington County

A 20 percent chance of rain Showers after midnight. Mostly clear. Lows around 70.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

St George Temperature Statistics

September Temperature

St George Municipal Airport (5 miles)

  • Lowest 1 September, 2026

    66.9 °F

  • Average September

    81.2 °F

  • Highest 2 September, 2026

    93.9 °F

Climate (2021–2026)

St George Municipal Airport (5 miles)

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

  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    76.9 °F
Get WillyWeather+ to remove ads