Portland Weather Forecast

    • 57
    • 85

    Mostly Sunny

    • 55
    • 83

    Increasing Clouds

    • 55
    • 81

    Slight Chance Rain Showers

    • 58
    • 76

    Chance Rain Showers

    • 57
    • 83

    Mostly Sunny

    • 54
    • 85

    Mostly Sunny

    • 49
    • 76

    Partly Sunny

Today 14 Sep Northampton

Sunny. Highs in the lower 80s. North Winds around 5 Mph.

Tonight 14 Sep Northampton

Partly cloudy this Evening, then clearing. Patchy fog after midnight. Lows in the upper 50s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland Temperature Statistics

September Temperature

Andover, Aeroflex-Andover Airport (19.3 miles)

  • Lowest 8 September, 2025

    46 °F

  • Average September

    64 °F

  • Highest 6 September, 2025

    82.9 °F

Climate (2020–Present)

Andover, Aeroflex-Andover Airport (19.3 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    63.8 °F
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