Castle Rock Weather Forecast

    • 65
    • 77

    Becoming Sunny

    • 66
    • 77

    Sunny

    • 71
    • 84

    Mostly Sunny

    • 76
    • 89

    Partly Sunny

    • 71
    • 89

    Partly Sunny

    • 69
    • 82

    Partly Sunny

Today 11 Jul Eastern Essex

Mostly sunny. Highs in the lower 80s. North Winds around 5 Mph, becoming east this afternoon.

Tonight 11 Jul Eastern Essex

Mostly clear. Lows in the lower 60s. South Winds around 5 Mph, becoming northwest after midnight.

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Castle Rock Temperature Statistics

July Temperature

Boston, Logan International Airport (6.2 miles)

  • Lowest 8 July, 2026

    61 °F

  • Average July

    78.9 °F

  • Highest 2 July, 2026

    101.6 °F

Climate (2021–2026)

Boston, Logan International Airport (6.2 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61 °F
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