Hampton Harbor - Knowles Island Weather Forecast

    • 61
    • 77

    Increasing Clouds

    • 59
    • 78

    Mostly Cloudy

    • 68
    • 76

    Rain Showers Likely

    • 62
    • 84

    Chance Rain Showers

    • 56
    • 73

    Mostly Sunny

    • 60
    • 70

    Partly Sunny

    • 62
    • 75

    Slight Chance Rain Showers

Today 7 Sep Coastal Rockingham

Mostly sunny. Highs in the upper 70s. Northwest Winds around 10 Mph.

Tonight 7 Sep Coastal Rockingham

Mostly clear this Evening, then becoming partly cloudy. Lows in the upper 50s. Light and variable Winds.

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  • Temperature Real-Time

Hampton Harbor - Knowles Island Temperature Statistics

September Temperature

Pease Air Force Base / Portsmouth (13 miles)

  • Lowest 1 September, 2026

    59.9 °F

  • Average September

    66.4 °F

  • Highest 4 September, 2026

    82.8 °F

Climate (2021–2026)

Pease Air Force Base / Portsmouth (13 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    59.2 °F
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