Arrowhead Reservoir Weather Forecast

    • 26
    • 50

    Partly Sunny

    • 34
    • 51

    Mostly Cloudy

    • 32
    • 50

    Slight Chance Rain

    • 32
    • 50

    Mostly Sunny

    • 18
    • 43

    Breezy

    • 12
    • 29

    Blustery

Today 11 Jan Western Crook

Partly cloudy in the Morning, then becoming mostly sunny. Highs around 50. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 11 Jan Western Crook

Partly cloudy. Lows in the lower 20s. Southwest Winds 10 to 15 Mph.

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Arrowhead Reservoir Temperature Statistics

January Temperature

Mondell Field (26.7 miles)

  • Lowest 1 January, 2026

    26.6 °F

  • Average January

    38.5 °F

  • Highest 4 January, 2026

    57.2 °F

Climate (2021–Present)

Mondell Field (26.7 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    60.3 °F
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