Newcastle Weather Forecast

    • 39
    • 52

    Chance Rain

    • 46
    • 56

    Partly Sunny

    • 49
    • 62

    Rain Likely

    • 46
    • 56

    Rain Likely

    • 44
    • 54

    Slight Chance Rain

    • 48
    • 56

    Rain

    • 44
    • 55

    Rain

Today 7 Nov Foothills and Valleys of Central King County

Partly sunny with a slight chance of rain late in the Morning, then mostly cloudy with a chance of rain in the afternoon. Highs in the lower to mid 50s. South wind around 10 Mph becoming southwest to 10 Mph in the afternoon.

Tonight 7 Nov Foothills and Valleys of Central King County

Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Lows in the mid to upper 30s. Light wind.

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Newcastle Temperature Statistics

November Temperature

Renton Municipal Airport (3.7 miles)

  • Lowest 4 November, 2025

    44.1 °F

  • Average November

    51.9 °F

  • Highest 1 November, 2025

    62.1 °F

Climate (2020–Present)

Renton Municipal Airport (3.7 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    62.2 °F
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