Mount Sinai Harbor Weather Forecast
- 54
- 65
Sunny
- 56
- 66
Increasing Clouds
- 60
- 65
Chance Thunderstorms
- 55
- 70
Mostly Sunny
- 59
- 65
Chance Rain Showers
- 60
- 75
Slight Chance Rain Showers
- 57
- 71
Chance Rain Showers
Today 21 May Northwest Suffolk
Mostly clear. Lows in the lower 50s. Northwest Winds 10 to 15 Mph. Gusts up to 25 Mph this evening.
Mount Sinai Harbor Temperature Statistics
May Temperature
Islip, Long Island Mac Arthur Airport (11.8 miles)
Lowest 12 May, 2019
43 °FAverage May
55.4 °FHighest 19 May, 2019
73 °F
Climate (2010–Present)
Islip, Long Island Mac Arthur Airport (11.8 miles)
Average Low 2010–Present
45.3 °FAverage 2010–Present
52.8 °FAverage High 2010–Present
60.2 °F