Gunlock Reservoir Weather Forecast

    • 22
    • 47

    Increasing Clouds

    • 24
    • 50

    Mostly Sunny

    • 20
    • 44

    Mostly Sunny

    • 24
    • 48

    Mostly Sunny

    • 26
    • 55

    Sunny

    • 26
    • 51

    Mostly Sunny

Today 18 Jan Lower Washington County

Sunny. Highs in the upper 40s. Northeast Winds 10 to 20 Mph in the afternoon.

Tonight 18 Jan Lower Washington County

Mostly clear in the evening then becoming mostly cloudy. Lows in the lower 20s.

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Gunlock Reservoir Temperature Statistics

January Temperature

St George Municipal Airport (20.5 miles)

  • Lowest 15 January, 2025

    25 °F

  • Average January

    41.2 °F

  • Highest 4 January, 2025

    59 °F

Climate (2020–Present)

St George Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    52.1 °F

  • Average 2020–2025

    64.2 °F

  • Average High 2020–2025

    76.5 °F
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