Portland Weather Forecast

    • 54
    • 75

    Rain Showers

    • 58
    • 71

    Chance Rain Showers

    • 56
    • 76

    Mostly Cloudy

    • 59
    • 73

    Rain Showers

    • 57
    • 77

    Rain Showers Likely

    • 51
    • 70

    Slight Chance Thunderstorms

Today 15 Sep Dodge

Mostly cloudy. Numerous Showers and isolated Thunderstorms in the Morning, then scattered Showers late in the morning. Highs in the mid 70s. West Winds 5 to 15 Mph. Gusts up to 30 Mph in the morning. Chance of precipitation 70 percent.

Tonight 15 Sep Dodge

Mostly cloudy through around midnight then clearing. Lows in the lower 50s. North Winds up to 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland Temperature Statistics

September Temperature

Watertown (12.4 miles)

  • Lowest 11 September, 2026

    53.8 °F

  • Average September

    70.8 °F

  • Highest 1 September, 2026

    87.3 °F

Climate (2021–2026)

Watertown (12.4 miles)

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

  • Average Low 2021–2026

    35.3 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    53.9 °F
Get WillyWeather+ to remove ads