Barnes Corners Weather Forecast

    • 42
    • 58

    Mostly Cloudy

    • 41
    • 56

    Mostly Cloudy

    • 42
    • 61

    Partly Sunny

    • 42
    • 63

    Partly Sunny

    • 43
    • 63

    Partly Sunny

    • 43
    • 63

    Partly Sunny

    • 46
    • 65

    Mostly Cloudy

Today 20 Sep Lewis

Mostly sunny. Highs in the upper 60s.

Tonight 20 Sep Lewis

Mostly cloudy. Lows around 40. Light north Winds.

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Barnes Corners Temperature Statistics

September Temperature

Watertown, Watertown International Airport (15.5 miles)

  • Lowest 12 September, 2026

    42.7 °F

  • Average September

    64.5 °F

  • Highest 2 September, 2026

    83.6 °F

Climate (2021–2026)

Watertown, Watertown International Airport (15.5 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.6 °F
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