Mastic Weather Forecast
- 35
- 57
Becoming Sunny
- 40
- 54
Mostly Sunny
- 44
- 56
Chance Rain
- 46
- 57
Rain Likely
- 45
- 60
Rain Likely
- 44
- 57
Slight Chance Rain
Today 26 Oct Southeast Suffolk
Sunny. Highs in the mid 50s. North Winds 5 to 10 Mph.
Tonight 26 Oct Southeast Suffolk
Mostly clear. Lows in the upper 30s. North Winds 5 to 10 Mph.
Mastic Temperature Statistics
October Temperature
Shirley, Brookhaven Airport (1.9 miles)
Lowest 9 October, 2025
35.1 °FAverage October
58.4 °FHighest 5 October, 2025
80.1 °F
Climate (2020–Present)
Shirley, Brookhaven Airport (1.9 miles)
Average Low 2020–2025
46.6 °FAverage 2020–2025
54.9 °FAverage High 2020–2025
63 °F