Sandown Weather Forecast

    • 12
    • 22

    Increasing Clouds

    • 19
    • 35

    Mostly Cloudy

    • 15
    • 32

    Chance Snow

    • 5
    • 24

    Mostly Sunny

    • 19
    • 27

    Slight Chance Snow Showers

    • 28
    • 39

    Chance Snow

    • 21
    • 39

    Chance Snow

Today 5 Dec Interior Rockingham

Mostly sunny. Highs in the lower 20s. Light and variable Winds.

Tonight 5 Dec Interior Rockingham

Partly cloudy in the Evening, then mostly cloudy with a slight chance of snow after midnight. Lows around 12. Light and variable Winds. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sandown Temperature Statistics

December Temperature

Manchester Airport (12.4 miles)

  • Lowest 1 December, 2025

    19.9 °F

  • Average December

    29.5 °F

  • Highest 1 December, 2025

    39.9 °F

Climate (2020–Present)

Manchester Airport (12.4 miles)

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  • Average Low 2020–2025

    42.7 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    62 °F
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