County Park Weather Forecast
- 71
- 87
Chance Thunderstorms
- 66
- 83
Mostly Sunny
- 67
- 79
Mostly Sunny
- 71
- 84
Mostly Sunny
- 75
- 87
Partly Sunny
- 75
- 90
Slight Chance Thunderstorms
Today 20 Jul Northwest Suffolk
Patchy fog in the morning. Mostly cloudy with a slight chance of Showers and Thunderstorms in the Morning, then partly sunny with a chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds in the afternoon. Humid with Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values in the upper 90s.
Tonight 20 Jul Northwest Suffolk
Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Some Thunderstorms may produce gusty Winds in the evening. Humid with Lows around 70. West Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 40 percent.
County Park Temperature Statistics
July Temperature
Islip, Long Island Mac Arthur Airport (10.6 miles)
Lowest 5 July, 2025
64.7 °FAverage July
78.2 °FHighest 8 July, 2025
92.6 °F
Climate (2020–Present)
Islip, Long Island Mac Arthur Airport (10.6 miles)
Average Low 2020–2025
47.5 °FAverage 2020–2025
55.2 °FAverage High 2020–2025
63 °F