Watertown Weather Forecast

    • 59
    • 78

    Mostly Cloudy

    • 65
    • 82

    Partly Sunny

    • 55
    • 75

    Rain Showers

    • 54
    • 68

    Chance Rain Showers

    • 48
    • 69

    Slight Chance Rain Showers

    • 42
    • 65

    Mostly Sunny

Today 30 Sep Washington

Areas of fog in the morning. Partly sunny. Highs in the upper 70s. Southeast Winds around 5 Mph, becoming south around 5 Mph in the afternoon.

Tonight 30 Sep Washington

Mostly cloudy. Lows in the lower 60s. South Winds around 5 Mph.

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Watertown Temperature Statistics

September Temperature

Parkersburg, Mid-Ohio Valley Regional Airport (13 miles)

  • Lowest 25 September, 2026

    42.7 °F

  • Average September

    71.9 °F

  • Highest 3 September, 2026

    94.6 °F

Climate (2021–2026)

Parkersburg, Mid-Ohio Valley Regional Airport (13 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    66.5 °F
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