Cottonwood Lake Weather Forecast

    • 48
    • 72

    Mostly Sunny

    • 57
    • 73

    Chance Rain Showers

    • 58
    • 75

    Rain Showers

    • 57
    • 70

    Rain Showers Likely

    • 56
    • 67

    Mostly Cloudy

    • 53
    • 67

    Partly Sunny

    • 51
    • 67

    Mostly Sunny

Today 15 Sep Lyon

Sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 15 Sep Lyon

Mostly clear. Lows in the upper 40s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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Cottonwood Lake Temperature Statistics

September Temperature

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (11.2 miles)

  • Lowest 13 September, 2026

    47.1 °F

  • Average September

    71.7 °F

  • Highest 3 September, 2026

    92.8 °F

Climate (2021–2026)

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (11.2 miles)

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.5 °F
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