Northwest Weather Forecast

    • 47
    • 60

    Rain Showers

    • 46
    • 63

    Mostly Cloudy

    • 47
    • 68

    Partly Sunny

    • 49
    • 64

    Partly Sunny

    • 50
    • 65

    Partly Sunny

    • 50
    • 67

    Partly Sunny

Today 25 Sep East Portland Metro

Showers with a slight chance of Thunderstorms. Breezy with Highs in the lower 60s. South wind 20 to 25 Mph with Gusts up to 45 Mph, becoming southwest 10 to 15 Mph with Gusts up to 35 Mph in the afternoon. Chance of rain near 100 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 25 Sep East Portland Metro

Mostly cloudy. A chance of Showers in the evening. Lows in the upper 40s. Winds light. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an inch.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Northwest Temperature Statistics

September Temperature

Portland, Portland-Troutdale Airport (3.7 miles)

  • Lowest 16 September, 2026

    47.6 °F

  • Average September

    63 °F

  • Highest 9 September, 2026

    88.6 °F

Climate (2021–2026)

Portland, Portland-Troutdale Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.2 °F
Get WillyWeather+ to remove ads