Long Dam Weather Forecast

    • 49
    • 68

    Partly Sunny

    • 51
    • 68

    Rain Showers Likely

    • 40
    • 56

    Rain Showers Likely

    • 42
    • 55

    Partly Sunny

    • 42
    • 56

    Partly Sunny

    • 44
    • 58

    Partly Sunny

Today 23 Sep Simcoe Highlands

Partly cloudy in the Morning, becoming mostly cloudy. Highs in the upper 60s to lower 70s.

Tonight 23 Sep Simcoe Highlands

Partly cloudy. Lows in the lower 40s to lower 50s.

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Long Dam Temperature Statistics

September Temperature

Sunnyside Municipal Airport (31.7 miles)

  • Lowest 14 September, 2026

    42.4 °F

  • Average September

    61.1 °F

  • Highest 1 September, 2026

    85.5 °F

Climate (2021–2026)

Sunnyside Municipal Airport (31.7 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    63 °F
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