Lake Harriet Weather Forecast

    • 50
    • 61

    Rain Showers

    • 46
    • 67

    Partly Sunny

    • 53
    • 79

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 55
    • 83

    Mostly Sunny

    • 50
    • 73

    Slight Chance Rain

Today 6 Sep North Oregon Cascades

Rain Showers likely this Morning, then a chance of rain Showers with a slight chance of Thunderstorms this afternoon. Areas of fog. Snow level 7500 feet. Light and variable Winds. Chance of rain 70 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 6 Sep North Oregon Cascades

Mostly cloudy. Patchy fog in the evening. A chance of rain Showers, mainly in the evening. Snow level 8000 feet. Pass Winds west 5 to 10 Mph. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Harriet Temperature Statistics

September Temperature

Portland, Portland-Troutdale Airport (39.1 miles)

  • Lowest 4 September, 2026

    53.1 °F

  • Average September

    61.2 °F

  • Highest 1 September, 2026

    71.7 °F

Climate (2021–2026)

Portland, Portland-Troutdale Airport (39.1 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.2 °F
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