Allentown Weather Forecast

    • 67
    • 93

    Becoming Sunny

    • 67
    • 95

    Partly Sunny

    • 62
    • 83

    Slight Chance Rain

    • 60
    • 84

    Partly Sunny

    • 60
    • 73

    Mostly Cloudy

    • 59
    • 76

    Partly Sunny

    • 59
    • 75

    Partly Sunny

Today 21 Jul Lowlands of Pierce and Southern King Counties

Mostly sunny. Highs in the 80s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 21 Jul Lowlands of Pierce and Southern King Counties

Mostly clear. Patchy smoke in the evening. Lows in the 60s. North wind to 10 Mph in the evening becoming light.

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Allentown Temperature Statistics

July Temperature

Renton Municipal Airport (2.5 miles)

  • Lowest 13 July, 2026

    53.1 °F

  • Average July

    66.3 °F

  • Highest 6 July, 2026

    84 °F

Climate (2021–2026)

Renton Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.3 °F
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