Williams Weather Forecast

    • 47
    • 88

    Mostly Sunny

    • 49
    • 89

    Mostly Cloudy

    • 46
    • 81

    Mostly Cloudy

    • 45
    • 80

    Partly Sunny

    • 45
    • 80

    Mostly Sunny

    • 45
    • 85

    Mostly Sunny

Today 17 Sep Modoc County

Sunny. Highs in the lower to mid 80s. Southeast Winds around 5 Mph shifting to the southwest this afternoon.

Tonight 17 Sep Modoc County

Mostly clear. Lows in the mid 40s to mid 50s. Southwest Winds 5 to 10 Mph shifting to the east well after midnight.

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Williams Temperature Statistics

September Temperature

Alturas (14.9 miles)

  • Lowest 15 September, 2025

    35.1 °F

  • Average September

    65.9 °F

  • Highest 1 September, 2025

    91 °F

Climate (2020–Present)

Alturas (14.9 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    64.4 °F
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