Portland Weather Forecast

    • 70
    • 94

    Chance Thunderstorms

    • 68
    • 94

    Slight Chance Thunderstorms

    • 68
    • 93

    Mostly Sunny

    • 64
    • 87

    Partly Sunny

    • 62
    • 86

    Partly Sunny

    • 62
    • 86

    Partly Sunny

Today 21 Sep Dallas

Sunny. Patchy fog in the morning. A chance of Showers and Thunderstorms in the afternoon. Highs in the mid 90s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 21 Sep Dallas

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows around 70. Northeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Portland Temperature Statistics

September Temperature

Craig Field / Selma (17.4 miles)

  • Lowest 18 September, 2026

    66.2 °F

  • Average September

    82 °F

  • Highest 2 September, 2026

    100.4 °F

Climate (2021–2026)

Craig Field / Selma (17.4 miles)

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  • Average Low 2021–2026

    55 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    78.6 °F
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