Grenell Weather Forecast

    • 19
    • 34

    Mostly Cloudy

    • 25
    • 33

    Mostly Cloudy

    • 33
    • 41

    Chance Rain/Snow

    • 23
    • 48

    Rain Showers Likely

    • 16
    • 29

    Partly Sunny

    • 23
    • 32

    Partly Sunny

Today 23 Mar Jefferson

Mostly cloudy. Highs Ranging from the lower 30s on the tug hill to the mid 30s across the lower Elevations. North Winds 5 to 10 Mph.

Tonight 23 Mar Jefferson

Mostly cloudy in the Evening, then clearing. Lows 15 to 20. Light northwest Winds.

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Grenell Temperature Statistics

March Temperature

Watertown, Watertown International Airport (19.9 miles)

  • Lowest 2 March, 2026

    -2.3 °F

  • Average March

    33.7 °F

  • Highest 9 March, 2026

    67.6 °F

Climate (2021–Present)

Watertown, Watertown International Airport (19.9 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.6 °F
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