Winona State Forest Weather Forecast

    • 42
    • 53

    Rain Showers

    • 44
    • 58

    Rain Showers

    • 43
    • 54

    Chance Rain Showers

    • 43
    • 57

    Mostly Cloudy

    • 47
    • 66

    Chance Rain Showers

    • 49
    • 65

    Partly Sunny

Today 12 May Oswego

Sunny. A widespread frost or freeze early. Chilly with Highs Ranging from the lower 50s along the lake Ontario shore to the mid 50s inland. Light Winds, becoming northwest around 10 Mph.

Tonight 12 May Oswego

Cloudy. Showers overnight. Not as cold with Lows Ranging from the upper 30s on the tug hill to the mid 40s across the lower Elevations. Light Winds, becoming southeast 5 to 10 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winona State Forest Temperature Statistics

May Temperature

Watertown, Watertown International Airport (20.5 miles)

  • Lowest 1 May, 2026

    29.6 °F

  • Average May

    48.2 °F

  • Highest 4 May, 2026

    70.6 °F

Climate (2021–Present)

Watertown, Watertown International Airport (20.5 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.6 °F
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