Portland Weather Forecast

    • 60
    • 85

    Chance Rain Showers

    • 66
    • 87

    Rain Showers

    • 64
    • 85

    Rain Showers

    • 49
    • 80

    Chance Thunderstorms

    • 44
    • 67

    Partly Sunny

    • 46
    • 69

    Partly Sunny

Today 16 May Whiteside

Partly sunny with a slight chance of Thunderstorms. A slight chance of Showers. Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 16 May Whiteside

Mostly cloudy. A chance of Showers after midnight. Lows around 60. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Portland Temperature Statistics

May Temperature

Sterling Rockfalls (16.8 miles)

  • Lowest 7 May, 2026

    28.9 °F

  • Average May

    55.7 °F

  • Highest 4 May, 2026

    81 °F

Climate (2021–Present)

Sterling Rockfalls (16.8 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.1 °F
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