Islip, Long Island Mac Arthur Airport Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Islip, Long Island Mac Arthur Airport in one place.
Sunny. High near 83, with temperatures falling to around 79 in the afternoon. Southwest wind 13 to 18 mph.
Local Weather Overview
This forecast page for Islip, Long Island Mac Arthur Airport is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 2, 2026 9:01 AM EDT.
The active forecast window currently covers Jul 2 to Jul 8, 2026 for Islip, Long Island Mac Arthur Airport.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 2 to Jul 8, 2026
- Latest sync
- Jul 2, 2026 9:01 AM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Islip, Long Island Mac Arthur Airport
Friday looks like the warmest upcoming period in Islip, Long Island Mac Arthur Airport at 87 degrees F.
Monday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Today at about 13 to 18 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 2, 2026 9:01 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 76. Southwest wind 6 to 18 mph.
Isolated showers and thunderstorms after 2pm. Sunny. High near 87, with temperatures falling to around 84 in the afternoon. West wind 5 to 16 mph. Chance of precipitation is 20%.
Isolated showers and thunderstorms before 2am. Partly cloudy, with a low around 76. West wind 7 to 14 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 2pm. Sunny. High near 86, with temperatures falling to around 83 in the afternoon. West wind 6 to 15 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Rain showers likely before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
A slight chance of rain showers before 8am. Partly sunny, with a high near 77.
Partly cloudy, with a low around 70.
Mostly sunny, with a high near 74.
Partly cloudy, with a low around 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 2
|
Sunny
|
83°F |
13 to 18 mph
SW
|
|
Tonight
Jul 2
|
Clear
|
76°F |
6 to 18 mph
SW
|
|
Friday
Jul 3
|
Sunny then Isolated Showers And Thunderstorms
|
87°F |
5 to 16 mph
W
|
|
Friday Night
Jul 3
|
Isolated Showers And Thunderstorms
|
76°F |
7 to 14 mph
W
|
|
Independence Day
Jul 4
|
Sunny then Chance Showers And Thunderstorms
|
86°F |
6 to 15 mph
W
|
|
Saturday Night
Jul 4
|
Chance Showers And Thunderstorms
|
73°F |
6 to 13 mph
W
|
|
Sunday
Jul 5
|
Chance Showers And Thunderstorms
|
81°F |
3 to 10 mph
NE
|
|
Sunday Night
Jul 5
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
71°F |
9 mph
SE
|
|
Monday
Jul 6
|
Showers And Thunderstorms Likely
|
77°F |
9 to 14 mph
E
|
|
Monday Night
Jul 6
|
Showers And Thunderstorms Likely
|
70°F |
14 mph
E
|
|
Tuesday
Jul 7
|
Slight Chance Rain Showers then Partly Sunny
|
77°F |
14 mph
NE
|
|
Tuesday Night
Jul 7
|
Partly Cloudy
|
70°F |
6 to 13 mph
E
|
|
Wednesday
Jul 8
|
Mostly Sunny
|
74°F |
6 to 12 mph
E
|
|
Wednesday Night
Jul 8
|
Partly Cloudy
|
71°F |
6 to 12 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Islip, Long Island Mac Arthur Airport.