Portsmouth Weather Forecast

    • 39
    • 60

    Slight Chance Rain Showers

    • 40
    • 64

    Mostly Sunny

    • 41
    • 64

    Mostly Sunny

    • 44
    • 66

    Partly Sunny

    • 45
    • 69

    Mostly Cloudy

    • 39
    • 58

    Chance Rain Showers

Today 29 Mar Inner Portland Metro

Mostly cloudy with a slight chance of rain Showers in the Morning, then mostly sunny in the afternoon. Highs around 60. Winds Light, becoming northeast 5 to 10 Mph in the afternoon. Chance of rain 20 percent.

Tonight 29 Mar Inner Portland Metro

Partly cloudy in the Evening, then clearing. Lows in the upper 30s. North wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portsmouth Temperature Statistics

March Temperature

Pearson Airfield (3.7 miles)

  • Lowest 6 March, 2024

    24.9 °F
  • Average March

    48.3 °F
  • Highest 16 March, 2024

    76.6 °F

Climate (2019–Present)

Pearson Airfield (3.7 miles)

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  • Average Low 2019–2024

    46.4 °F
  • Average 2019–2024

    54.8 °F
  • Average High 2019–2024

    63.9 °F
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