Castle Rock Weather Forecast

    • 64
    • 72

    Increasing Clouds

    • 67
    • 79

    Mostly Cloudy

    • 64
    • 71

    Partly Sunny

    • 65
    • 70

    Chance Rain Showers

    • 66
    • 70

    Rain Showers Likely

    • 64
    • 72

    Chance Rain Showers

Today 29 Aug Eastern Essex

Sunny. Highs in the mid 70s. North Winds around 5 Mph, becoming southeast this afternoon.

Tonight 29 Aug Eastern Essex

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Rock Temperature Statistics

August Temperature

Boston, Logan International Airport (6.2 miles)

  • Lowest 16 August, 2026

    62.7 °F

  • Average August

    76.2 °F

  • Highest 7 August, 2026

    94.6 °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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