Barton Lake Weather Forecast

    • 45
    • 82

    Mostly Sunny

    • 45
    • 77

    Slight Chance Thunderstorms

    • 48
    • 79

    Mostly Sunny

    • 49
    • 83

    Sunny

    • 50
    • 86

    Mostly Sunny

    • 51
    • 88

    Mostly Sunny

Today 15 Sep Central Siskiyou County

Sunny. Highs in the mid 70s to mid 80s. East Winds around 5 Mph early in the morning becoming Light, then becoming north 5 to 10 Mph in the afternoon.

Tonight 15 Sep Central Siskiyou County

Mostly clear. Lows in the mid 40s to lower 50s. North Winds 10 to 15 Mph shifting to the northwest around 5 Mph after midnight.

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Barton Lake Temperature Statistics

September Temperature

Montague Siskiyou County Airport (8.7 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 (8.7 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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