Callahan Weather Forecast

    • 55
    • 76

    Chance Thunderstorms

    • 56
    • 74

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 60
    • 78

    Mostly Sunny

    • 61
    • 80

    Partly Sunny

    • 62
    • 83

    Mostly Sunny

    • 65
    • 85

    Mostly Sunny

Today 3 Aug Western Siskiyou County

Sunny with a 10 percent chance of Thunderstorms. Highs in the lower 70s to lower 80s. West Winds 5 to 10 Mph.

Tonight 3 Aug Western Siskiyou County

Mostly clear. A 10 percent chance of Thunderstorms early this evening. Lows around 50. Northwest Winds 10 to 15 Mph decreasing to around 5 Mph after midnight.

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Callahan Temperature Statistics

August Temperature

Trinity Center (23.6 miles)

  • Lowest 1 August, 2025

    55.4 °F

  • Average August

    72.3 °F

  • Highest 1 August, 2025

    93.2 °F

Climate (2020–Present)

Trinity Center (23.6 miles)

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  • Average Low 2020–2025

    42.1 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.6 °F
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