South Portland Weather Forecast

    • 25
    • 45

    Chance Rain Showers

    • 31
    • 40

    Chance Rain

    • 42
    • 52

    Rain

    • 19
    • 47

    Mostly Sunny

    • 25
    • 35

    Mostly Cloudy

    • 28
    • 40

    Partly Sunny

Today 14 Mar Coastal Cumberland

Partly sunny. A slight chance of rain or snow this Morning, then a chance of rain Showers this afternoon. Highs in the mid 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 40 percent.

Tonight 14 Mar Coastal Cumberland

Partly cloudy with a chance of rain Showers in the Evening, then mostly clear after midnight. Lows in the lower 20s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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South Portland Temperature Statistics

March Temperature

Portland, Portland International Jetport (3.1 miles)

  • Lowest 2 March, 2026

    4.6 °F

  • Average March

    34.2 °F

  • Highest 10 March, 2026

    66 °F

Climate (2021–Present)

Portland, Portland International Jetport (3.1 miles)

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  • Average Low 2021–2026

    40.2 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    57.2 °F
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