Manchester Weather Forecast

    • 52
    • 77

    Becoming Sunny

    • 55
    • 81

    Mostly Sunny

    • 56
    • 80

    Partly Sunny

    • 57
    • 82

    Partly Sunny

    • 48
    • 74

    Partly Sunny

    • 48
    • 70

    Partly Sunny

Today 15 Sep Ontario

Some patchy fog in the Morning, otherwise mostly sunny. Highs Ranging from the lower 70s on the Hilltops to the upper 70s across the lower Elevations. Northeast Winds 10 Mph or less.

Tonight 15 Sep Ontario

Mainly Clear, then becoming partly cloudy with some patchy fog. Lows in the mid 50s. Light Winds.

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Manchester Temperature Statistics

September Temperature

Penn Yan, Penn Yan Airport (24.2 miles)

  • Lowest 8 September, 2025

    45 °F

  • Average September

    61.8 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Penn Yan, Penn Yan Airport (24.2 miles)

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  • Average Low 2020–2025

    42.1 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    59.3 °F
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