Sumner Weather Forecast

    • 55
    • 75

    Mostly Sunny

    • 48
    • 73

    Partly Sunny

    • 58
    • 67

    Chance Rain Showers

    • 52
    • 78

    Partly Sunny

    • 48
    • 70

    Mostly Sunny

    • 51
    • 74

    Partly Sunny

Today 7 Sep Southern Oxford

Mostly sunny. Highs in the mid 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 7 Sep Southern Oxford

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. West Winds around 10 Mph.

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Sumner Temperature Statistics

September Temperature

Auburn-Lewiston (24.9 miles)

  • Lowest 1 September, 2026

    50 °F

  • Average September

    64.6 °F

  • Highest 4 September, 2026

    79 °F

Climate (2021–2026)

Auburn-Lewiston (24.9 miles)

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  • Average Low 2021–2026

    37.6 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    57.1 °F
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