Summit Airport Weather Forecast

    • 49
    • 68

    Partly Sunny

    • 47
    • 67

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 52
    • 72

    Partly Sunny

    • 51
    • 71

    Partly Sunny

    • 49
    • 66

    Slight Chance Rain Showers

Today 11 Aug Northern Susitna Valley

Partly cloudy. Haze. Isolated Showers in the afternoon. Highs in the upper 60s. Light Winds becoming variable 10 Mph in the afternoon.

Tonight 11 Aug Northern Susitna Valley

Partly cloudy in the evening then becoming mostly cloudy. Haze in the evening. Scattered Showers. Lows in the upper 40s. Variable wind 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Airport Temperature Statistics

August Temperature

McKinley Park, McKinley National Park Airport (28 miles)

  • Lowest 2 August, 2026

    46.9 °F

  • Average August

    59.3 °F

  • Highest 1 August, 2026

    77 °F

Climate (2021–2026)

McKinley Park, McKinley National Park Airport (28 miles)

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  • Average Low 2021–2026

    20 °F

  • Average 2021–2026

    29.3 °F

  • Average High 2021–2026

    37.1 °F
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