Sandown Weather Forecast

    • 53
    • 72

    Chance Rain Showers

    • 52
    • 70

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 54
    • 76

    Mostly Cloudy

    • 62
    • 74

    Chance Rain Showers

    • 55
    • 78

    Slight Chance Thunderstorms

Today 5 Sep Interior Rockingham

Partly sunny in the Morning, then mostly cloudy with a chance of Showers in the afternoon. Highs in the lower 70s. Light and variable Winds. Chance of rain 50 percent.

Tonight 5 Sep Interior Rockingham

Partly cloudy with a chance of Showers in the Evening, then mostly clear after midnight. Lows in the lower 50s. Light and variable Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sandown Temperature Statistics

September Temperature

Manchester Airport (12.4 miles)

  • Lowest 1 September, 2026

    61.6 °F

  • Average September

    65.7 °F

  • Highest 2 September, 2026

    72 °F

Climate (2021–2026)

Manchester Airport (12.4 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    61.9 °F
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