Castle Rock Weather Forecast

    • 31
    • 37

    Increasing Clouds

    • 29
    • 38

    Snow

    • 29
    • 33

    Chance Flurries

    • 29
    • 36

    Chance Snow

    • 26
    • 35

    Chance Snow

    • 21
    • 34

    Partly Sunny

    • 35
    • 40

    Chance Snow

Today 19 Feb Eastern Essex

Mostly sunny. Near steady temperature in the upper 30s. Southeast Winds around 5 Mph.

Tonight 19 Feb Eastern Essex

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 20s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Rock Temperature Statistics

February Temperature

Boston, Logan International Airport (6.2 miles)

  • Lowest 8 February, 2026

    4.6 °F

  • Average February

    26.6 °F

  • Highest 11 February, 2026

    39.9 °F

Climate (2021–Present)

Boston, Logan International Airport (6.2 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    61 °F
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