Summerset Lake Weather Forecast

    • 63
    • 93

    Increasing Clouds

    • 62
    • 87

    Chance Thunderstorms

    • 62
    • 86

    Chance Thunderstorms

    • 63
    • 86

    Chance Thunderstorms

    • 62
    • 84

    Chance Thunderstorms

    • 60
    • 85

    Chance Thunderstorms

Today 18 Sep Jefferson

Sunny. Highs in the lower 90s. Southeast Winds around 5 Mph.

Tonight 18 Sep Jefferson

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows in the mid 60s. Southeast Winds around 5 Mph, becoming southwest after midnight. Chance of rain 20 percent.

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Summerset Lake Temperature Statistics

September Temperature

Farmington Airport (23.6 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    74.9 °F

  • Highest 14 September, 2025

    96.8 °F

Climate (2020–Present)

Farmington Airport (23.6 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    56.5 °F

  • Average High 2020–2025

    66.6 °F
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