Portland Weather Forecast

    • 59
    • 85

    Mostly Sunny

    • 52
    • 75

    Chance Thunderstorms

    • 66
    • 77

    Rain Showers Likely

    • 61
    • 83

    Rain Showers

    • 62
    • 77

    Rain Showers Likely

    • 57
    • 78

    Chance Rain Showers

Today 12 Sep Whiteside

Partly sunny. Near steady temperature in the lower 80s. Northwest Winds around 10 Mph.

Tonight 12 Sep Whiteside

Mostly clear. Less humid with Lows in the upper 50s. North Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland Temperature Statistics

September Temperature

Sterling Rockfalls (16.8 miles)

  • Lowest 7 September, 2026

    57.9 °F

  • Average September

    77 °F

  • Highest 2 September, 2026

    96.1 °F

Climate (2021–2026)

Sterling Rockfalls (16.8 miles)

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

  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.1 °F
Get WillyWeather+ to remove ads