Castle Rock Weather Forecast

    • 60
    • 72

    Mostly Sunny

    • 60
    • 70

    Mostly Sunny

    • 65
    • 73

    Partly Sunny

    • 65
    • 74

    Rain Showers Likely

    • 65
    • 73

    Chance Rain Showers

    • 66
    • 75

    Chance Rain Showers

Today 25 Jul Eastern Essex

Sunny. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 25 Jul Eastern Essex

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. East Winds 5 to 10 Mph, becoming northeast after midnight.

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  • Temperature Real-Time

Castle Rock Temperature Statistics

July Temperature

Boston, Logan International Airport (6.2 miles)

  • Lowest 8 July, 2026

    61.6 °F

  • Average July

    77.1 °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

    53.7 °F

  • Average High 2021–2026

    61 °F
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