Sand Hollow Reservoir Weather Forecast

    • 60
    • 75

    Rain Showers

    • 60
    • 86

    Mostly Sunny

    • 61
    • 88

    Sunny

    • 64
    • 88

    Mostly Sunny

    • 64
    • 90

    Mostly Sunny

    • 65
    • 91

    Sunny

    • 64
    • 89

    Sunny

Today 29 Sep Lower Washington County

Clear. Lows in the mid 60s. Highs in the lower 90s.

Tonight 29 Sep Lower Washington County

Mostly cloudy. A chance of rain Showers and a slight chance of Thunderstorms in the evening. Some Thunderstorms may produce heavy rainfall in the evening. Lows around 60. Chance of precipitation 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sand Hollow Reservoir Temperature Statistics

September Temperature

St George Municipal Airport (8.1 miles)

  • Lowest 22 September, 2026

    60.1 °F

  • Average September

    81.4 °F

  • Highest 10 September, 2026

    102.9 °F

Climate (2021–2026)

St George Municipal Airport (8.1 miles)

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

  • Average Low 2021–2026

    53.1 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    76.8 °F
Get WillyWeather+ to remove ads