South Mountain Reservoir Weather Forecast

    • 49
    • 85

    Sunny

    • 52
    • 85

    Sunny

    • 55
    • 93

    Sunny

    • 55
    • 93

    Sunny

    • 55
    • 92

    Sunny

    • 55
    • 92

    Sunny

Today 2 Aug Modoc County

Sunny. Highs in the lower 80s to lower 90s. North Winds 5 to 10 Mph shifting to the west 10 to 15 Mph this afternoon.

Tonight 2 Aug Modoc County

Clear. Smoke after midnight. Lows around 50. Northwest Winds 10 to 15 Mph shifting to the north well after midnight.

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South Mountain Reservoir Temperature Statistics

August Temperature

Alturas (22.4 miles)

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  • Average August

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Climate (2021–2026)

Alturas (22.4 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    49.3 °F

  • Average High 2021–2026

    64.8 °F
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