Grass Bay Weather Forecast

    • 7
    • 17

    Mostly Cloudy

    • -2
    • 25

    Snow Showers

    • -12
    • 5

    Cold

    • -4
    • 6

    Cold

    • 5
    • 18

    Partly Sunny

    • 6
    • 20

    Slight Chance Snow Showers

Today 5 Feb Jefferson

Mostly cloudy Early, then becoming partly sunny. Cold with Highs 15 to 20. Light Winds.

Tonight 5 Feb Jefferson

Mostly cloudy. Lows zero to 5 above. Light south Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Bay Temperature Statistics

February Temperature

Watertown, Watertown International Airport (16.8 miles)

  • Lowest 1 February, 2026

    -0.9 °F

  • Average February

    13.7 °F

  • Highest 3 February, 2026

    26.1 °F

Climate (2021–Present)

Watertown, Watertown International Airport (16.8 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.5 °F
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