Portland Weather Forecast

    • 45
    • 63

    Slight Chance Rain Showers

    • 44
    • 65

    Partly Sunny

    • 48
    • 72

    Partly Sunny

    • 50
    • 61

    Rain Likely

    • 47
    • 64

    Chance Rain Showers

    • 50
    • 66

    Slight Chance Rain Showers

Today 18 May Inner Portland Metro

Partly sunny. A slight chance of Showers this afternoon. Highs in the lower 60s. Winds Light, rising to northwest 10 to 15 Mph this afternoon. Chance of rain 20 percent.

Tonight 18 May Inner Portland Metro

Mostly cloudy. Lows in the lower 40s. Northwest wind 10 to 15 Mph, becoming light after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland Temperature Statistics

May Temperature

Portland, Portland International Airport (5.6 miles)

  • Lowest 8 May, 2024

    41.6 °F

  • Average May

    59.8 °F

  • Highest 10 May, 2024

    91.7 °F

Climate (2019–Present)

Portland, Portland International Airport (5.6 miles)

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  • Average Low 2019–2024

    48.1 °F

  • Average 2019–2024

    55.5 °F

  • Average High 2019–2024

    64.5 °F
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