Castle Rock Weather Forecast

    • 60
    • 69

    Patchy Fog

    • 61
    • 70

    Mostly Cloudy

    • 65
    • 74

    Mostly Sunny

    • 67
    • 77

    Chance Rain Showers

    • 69
    • 78

    Slight Chance Thunderstorms

    • 71
    • 82

    Mostly Sunny

Today 27 Jun Eastern Essex

Mostly sunny. Patchy fog this morning. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 27 Jun Eastern Essex

Mostly cloudy. Patchy fog after midnight. Lows in the upper 50s. Southeast Winds 5 to 10 Mph, becoming northeast after midnight.

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Castle Rock Temperature Statistics

June Temperature

Boston, Logan International Airport (6.2 miles)

  • Lowest 1 June, 2026

    49.6 °F

  • Average June

    72.5 °F

  • Highest 14 June, 2026

    91.7 °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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