Stronghold Weather Forecast

    • 48
    • 78

    Slight Chance Thunderstorms

    • 38
    • 70

    Becoming Sunny

    • 43
    • 78

    Sunny

    • 46
    • 84

    Sunny

    • 44
    • 82

    Mostly Sunny

    • 43
    • 78

    Mostly Sunny

    • 43
    • 78

    Mostly Sunny

Today 13 Sep Northeast Siskiyou and Northwest Modoc Counties

Sunny until early afternoon then becoming partly cloudy. Highs in the mid 70s to lower 80s. Southeast Winds around 5 Mph shifting to the west late this afternoon.

Tonight 13 Sep Northeast Siskiyou and Northwest Modoc Counties

Mostly cloudy this Evening, then partly cloudy with isolated Showers after midnight. Lows in the mid 40s to lower 50s. West Winds 5 to 10 Mph.

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Stronghold Temperature Statistics

September Temperature

Klamath Falls International Airport (23.6 miles)

  • Lowest 8 September, 2025

    43 °F

  • Average September

    62.6 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Klamath Falls International Airport (23.6 miles)

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  • Average Low 2020–2025

    33.8 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    63.1 °F
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