Sandown Weather Forecast

    • 58
    • 80

    Chance Rain Showers

    • 64
    • 83

    Chance Rain Showers

    • 56
    • 87

    Rain Showers Likely

    • 50
    • 72

    Slight Chance Rain Showers

    • 46
    • 72

    Mostly Sunny

    • 47
    • 71

    Partly Sunny

Today 4 Sep Interior Rockingham

Mostly sunny. Highs around 80. Light and variable Winds, becoming southeast around 10 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 4 Sep Interior Rockingham

Mostly clear with a slight chance of Showers in the Evening, then partly cloudy with a chance of Showers after midnight. Lows in the upper 50s. South Winds around 10 Mph with Gusts up to 20 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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Sandown Temperature Statistics

September Temperature

Manchester Airport (12.4 miles)

  • Lowest 1 September, 2025

    51.1 °F

  • Average September

    64.7 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

Manchester Airport (12.4 miles)

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  • Average Low 2020–2025

    42.9 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    62.1 °F
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