Round Mountain Airport Weather Forecast

    • 34
    • 54

    Becoming Sunny

    • 35
    • 55

    Sunny

    • 37
    • 58

    Sunny

    • 43
    • 65

    Mostly Sunny

    • 47
    • 68

    Mostly Sunny

    • 49
    • 75

    Sunny

Today 10 Oct Central Siskiyou County

Partly cloudy early this morning then clearing. Highs in the mid 50s to mid 60s. North Winds 10 to 15 Mph.

Tonight 10 Oct Central Siskiyou County

Mostly clear. Lows in the lower to mid 30s. North Winds 10 to 15 Mph.

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Round Mountain Airport Temperature Statistics

October Temperature

Montague Siskiyou County Airport (20.5 miles)

  • Lowest 1 October, 2026

    40.6 °F

  • Average October

    66.9 °F

  • Highest 8 October, 2026

    93 °F

Climate (2021–2026)

Montague Siskiyou County Airport (20.5 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    69.1 °F
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