Sand Hollow Reservoir Weather Forecast

    • 61
    • 94

    Mostly Sunny

    • 63
    • 98

    Hot

    • 67
    • 99

    Hot

    • 61
    • 93

    Partly Sunny

    • 59
    • 90

    Sunny

    • 59
    • 89

    Sunny

Today 10 May Lower Washington County

Sunny. Highs in the mid 90s.

Tonight 10 May Lower Washington County

Mostly clear. Lows around 60.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sand Hollow Reservoir Temperature Statistics

May Temperature

St George Municipal Airport (8.1 miles)

  • Lowest 5 May, 2026

    52 °F

  • Average May

    71.2 °F

  • Highest 8 May, 2026

    95 °F

Climate (2021–Present)

St George Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    52.9 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    76.8 °F
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