Nassau Weather Forecast

    • 23
    • 57

    Chance Rain/Snow

    • 29
    • 35

    Mostly Cloudy

    • 17
    • 39

    Mostly Cloudy

    • 21
    • 30

    Snow

    • 28
    • 37

    Chance Rain/Snow

    • 21
    • 35

    Mostly Cloudy

    • 33
    • 40

    Rain Likely

Today 19 Dec Western Rensselaer

Rain. Highs in the mid 50s. Temperature falling into the upper 30s. West Winds 15 to 20 Mph with Gusts up to 45 Mph. Chance of rain near 100 percent.

Tonight 19 Dec Western Rensselaer

Mostly cloudy and Blustery. Much Colder with Lows in the lower 20s. West Winds 15 to 25 Mph with Gusts up to 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau Temperature Statistics

December Temperature

Pittsfield Municipal Airport (17.4 miles)

  • Lowest 5 December, 2025

    -2 °F

  • Average December

    22.7 °F

  • Highest 17 December, 2025

    41 °F

Climate (2020–Present)

Pittsfield Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    48.1 °F

  • Average High 2020–2025

    57.5 °F
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