Portland Weather Forecast

    • 65
    • 90

    Isolated Thunderstorms

    • 65
    • 86

    Mostly Sunny

    • 72
    • 90

    Thunderstorms Likely

    • 61
    • 86

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 62
    • 82

    Partly Sunny

Today 18 Jul Whiteside

Sunny early this Morning, then becoming mostly sunny. Isolated Showers and Thunderstorms this afternoon. Hot with Highs around 90. West Winds 10 to 15 Mph, becoming northwest with Gusts up to 20 Mph this afternoon. Chance of rain 20 percent. Heat index Values up to 101.

Tonight 18 Jul Whiteside

Mostly clear. Patchy smoke after midnight. Humid with Lows in the mid 60s. North Winds 5 to 10 Mph, becoming east after midnight.

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Portland Temperature Statistics

July Temperature

Sterling Rockfalls (16.8 miles)

  • Lowest 7 July, 2026

    63 °F

  • Average July

    77.6 °F

  • Highest 15 July, 2026

    93.9 °F

Climate (2021–2026)

Sterling Rockfalls (16.8 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.2 °F
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