Cy Donnelly Park Weather Forecast
- 44
- 57
Sunny
- 45
- 61
Mostly Sunny
- 52
- 63
Partly Sunny
- 54
- 69
Rain Showers Likely
- 50
- 66
Chance Rain Showers
- 52
- 66
Chance Rain Showers
- 48
- 63
Slight Chance Rain Showers
Today 16 Oct Northwest Suffolk
Sunny. Near steady temperature in the mid 50s. North Winds 15 to 20 Mph with Gusts up to 30 Mph.
Tonight 16 Oct Northwest Suffolk
Clear. Lows in the mid 40s. North Winds 15 to 20 Mph with Gusts up to 30 Mph.
Cy Donnelly Park Temperature Statistics
October Temperature
Islip, Long Island Mac Arthur Airport (8.7 miles)
Lowest 10 October, 2025
42.1 °FAverage October
62.6 °FHighest 4 October, 2025
82 °F
Climate (2020–Present)
Islip, Long Island Mac Arthur Airport (8.7 miles)
Average Low 2020–2025
47.5 °FAverage 2020–2025
55.3 °FAverage High 2020–2025
63.2 °F