Belle Isle Weather Forecast

    • 60
    • 80

    Decreasing Clouds

    • 55
    • 71

    Chance Rain Showers

    • 54
    • 70

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 56
    • 77

    Mostly Cloudy

    • 64
    • 74

    Chance Rain Showers

    • 57
    • 81

    Partly Sunny

Today 4 Sep Coastal Rockingham

Partly sunny. Highs in the lower 80s. Light and variable Winds.

Tonight 4 Sep Coastal Rockingham

Partly cloudy in the Evening, then clearing. Lows around 60. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Belle Isle Temperature Statistics

September Temperature

Pease Air Force Base / Portsmouth (3.7 miles)

  • Lowest 1 September, 2026

    59.9 °F

  • Average September

    64.4 °F

  • Highest 2 September, 2026

    69.3 °F

Climate (2021–2026)

Pease Air Force Base / Portsmouth (3.7 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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