Portsmouth Weather Forecast

    • 46
    • 51

    Rain Likely

    • 52
    • 57

    Rain

    • 49
    • 58

    Rain

    • 46
    • 59

    Rain

    • 40
    • 55

    Chance Rain

    • 41
    • 61

    Partly Sunny

Today 21 Feb Inner Portland Metro

Cloudy. Rain likely in the afternoon. Highs in the lower 50s. Winds light. Chance of rain 70 percent. Rainfall Amounts around a tenth of an inch.

Tonight 21 Feb Inner Portland Metro

Rain. Lows in the mid 40s. Winds light. Chance of rain 90 percent. Rainfall Amounts a tenth to a quarter of an inch.

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  • Temperature Forecast NOAA

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Portsmouth Temperature Statistics

February Temperature

Pearson Airfield (3.7 miles)

  • Lowest 12 February, 2025

    17.9 °F

  • Average February

    38.4 °F

  • Highest 17 February, 2025

    54 °F

Climate (2020–Present)

Pearson Airfield (3.7 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    64.3 °F
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