Castle Rock Weather Forecast
- 28
- 33
Increasing Clouds
- 30
- 37
Mostly Cloudy
- 35
- 39
Mostly Cloudy
- 34
- 39
Rain Likely
- 32
- 37
Slight Chance Snow
- 35
- 39
Chance Rain/Snow
- 32
- 39
Chance Rain
Today 15 Feb Eastern Essex
Sunny. Near steady temperature in the lower 30s. Northeast Winds around 5 Mph.
Tonight 15 Feb Eastern Essex
Mostly cloudy. Lows in the lower 20s. Northeast Winds around 5 Mph.
Castle Rock Temperature Statistics
February Temperature
Boston, Logan International Airport (6.2 miles)
Lowest 8 February, 2026
3.9 °FAverage February
24.8 °FHighest 11 February, 2026
39.9 °F
Climate (2021–Present)
Boston, Logan International Airport (6.2 miles)
Average Low 2021–2026
46.8 °FAverage 2021–2026
53.7 °FAverage High 2021–2026
61 °F