Montague Weather Forecast

    • 45
    • 79

    Sunny

    • 46
    • 83

    Mostly Sunny

    • 47
    • 79

    Slight Chance Thunderstorms

    • 48
    • 80

    Mostly Sunny

    • 50
    • 83

    Sunny

    • 50
    • 87

    Mostly Sunny

    • 51
    • 88

    Mostly Sunny

Today 14 Sep Central Siskiyou County

Sunny. Highs in the lower 70s to lower 80s. Northeast Winds around 5 Mph.

Tonight 14 Sep Central Siskiyou County

Clear. Lows in the mid 40s to lower 50s. North Winds 10 to 15 Mph shifting to the northwest around 5 Mph after Midnight, then shifting to the northeast well after midnight.

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Montague Temperature Statistics

September Temperature

Montague Siskiyou County Airport (4.3 miles)

  • Lowest 4 September, 2026

    35.7 °F

  • Average September

    60.7 °F

  • Highest 10 September, 2026

    94.6 °F

Climate (2021–2026)

Montague Siskiyou County Airport (4.3 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    69 °F
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