Lake Ontario Weather Forecast

    • 18
    • 40

    Rain/Snow

    • 12
    • 22

    Chance Snow

    • 11
    • 19

    Snow

    • 9
    • 17

    Snow Likely

    • 12
    • 18

    Chance Snow Showers

    • 23
    • 27

    Chance Snow Showers

Today 18 Jan Oswego

Snow. Accumulation Ranging from up to 2 Inches across the lower Elevations to 2 to 4 Inches on the tug hill. Highs Ranging from the mid 30s on the tug hill to the upper 30s across the lower Elevations. South Winds 10 to 15 Mph with Gusts up to 30 Mph in the Morning, Diminishing to 5 to 10 Mph. Chance of snow 100 percent.

Tonight 18 Jan Oswego

Snow in the Evening, then a chance of snow Showers overnight. Additional accumulation Ranging from an inch or less across the lower Elevations to 1 to 2 Inches on the tug hill. Colder with Lows Ranging from 5 to 10 above on the tug hill to 10 to 15 across the lower Elevations. West Winds 5 to 10 Mph, becoming northwest. Chance of snow 80 percent.

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Lake Ontario Temperature Statistics

January Temperature

Fulton, Oswego County Airport (18 miles)

  • Lowest 6 January, 2025

    12.8 °F

  • Average January

    25.4 °F

  • Highest 1 January, 2025

    45.6 °F

Climate (2020–Present)

Fulton, Oswego County Airport (18 miles)

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  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    58.3 °F
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