Portland Weather Forecast

    • 64
    • 81

    Increasing Clouds

    • 65
    • 82

    Chance Rain Showers

    • 52
    • 81

    Partly Sunny

    • 56
    • 73

    Rain Showers Likely

    • 55
    • 72

    Rain Showers Likely

    • 54
    • 70

    Chance Rain Showers

    • 53
    • 68

    Chance Rain Showers

Today 16 Sep Northampton

Partly sunny with a 30 percent chance of Showers. Highs in the upper 60s.

Tonight 16 Sep Northampton

Partly cloudy this Evening, then becoming mostly cloudy. Warmer with Lows in the mid 60s. South Winds around 5 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland Temperature Statistics

September Temperature

Andover, Aeroflex-Andover Airport (19.3 miles)

  • Lowest 14 September, 2026

    51.1 °F

  • Average September

    68.9 °F

  • Highest 3 September, 2026

    86 °F

Climate (2021–2026)

Andover, Aeroflex-Andover Airport (19.3 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.6 °F
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