Vaill Island Weather Forecast

    • 66
    • 77

    Becoming Sunny

    • 62
    • 81

    Isolated Thunderstorms

    • 62
    • 76

    Mostly Sunny

    • 62
    • 73

    Rain Showers Likely

    • 63
    • 73

    Mostly Sunny

    • 64
    • 72

    Slight Chance Rain Showers

Today 15 Jul Coastal Cumberland

Partly sunny. Isolated Showers this morning. Warm with Highs in the upper 80s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 15 Jul Coastal Cumberland

Mostly clear. Lows in the mid 60s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Vaill Island Temperature Statistics

July Temperature

Portland, Portland International Jetport (7.5 miles)

  • Lowest 12 July, 2026

    57.7 °F

  • Average July

    74.3 °F

  • Highest 2 July, 2026

    96.7 °F

Climate (2021–2026)

Portland, Portland International Jetport (7.5 miles)

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  • Average Low 2021–2026

    40.1 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    57.2 °F
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