Windham Weather Forecast

    • 57
    • 77

    Mostly Sunny

    • 55
    • 78

    Partly Sunny

    • 66
    • 77

    Chance Rain Showers

    • 58
    • 81

    Partly Sunny

    • 53
    • 75

    Mostly Sunny

    • 58
    • 78

    Partly Sunny

Today 7 Sep Interior Rockingham

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

Tonight 7 Sep Interior Rockingham

Mostly clear. Lows in the upper 50s. Northwest Winds around 10 Mph in the Evening, becoming light and variable.

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Windham Temperature Statistics

September Temperature

Nashua - Boire Field Airport (10.6 miles)

  • Lowest 5 September, 2026

    57 °F

  • Average September

    66.9 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

Nashua - Boire Field Airport (10.6 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    60.6 °F
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