Lake Ontario Weather Forecast

    • 55
    • 74

    Chance Rain Showers

    • 55
    • 78

    Mostly Sunny

    • 52
    • 72

    Chance Rain Showers

    • 52
    • 63

    Chance Rain Showers

    • 54
    • 65

    Chance Rain Showers

    • 54
    • 68

    Mostly Cloudy

    • 54
    • 74

    Partly Sunny

Today 15 Sep Wells

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 70s. Southwest Winds around 15 Mph. Chance of rain 50 percent.

Tonight 15 Sep Wells

Partly cloudy with a 20 percent chance of Showers. Lows in the mid 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Ontario Temperature Statistics

September Temperature

Harvey Municipal Airport (21.1 miles)

  • Lowest 7 September, 2025

    33.8 °F

  • Average September

    58.7 °F

  • Highest 1 September, 2025

    80.6 °F

Climate (2020–Present)

Harvey Municipal Airport (21.1 miles)

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  • Average Low 2020–2025

    30.1 °F

  • Average 2020–2025

    41.1 °F

  • Average High 2020–2025

    51.8 °F
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