Islip, NY Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Islip, NY in one place.
Sunny. High near 60, with temperatures falling to around 58 in the afternoon. Northwest wind 7 to 10 mph.
Local Weather Overview
This forecast page for Islip, NY 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: Apr 9, 2026 3:00 PM EDT.
The active forecast window currently covers Apr 11 to Apr 15, 2026 for Islip, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:00 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Islip
Tuesday looks like the warmest upcoming period in Islip at 69 degrees F.
Saturday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Monday at about 10 to 16 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:00 PM EDT
- Coverage
- 5 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
Mostly clear, with a low around 41.
Mostly sunny, with a high near 54.
Mostly cloudy, with a low around 45.
Mostly cloudy, with a high near 62.
Mostly cloudy, with a low around 53.
Partly sunny, with a high near 69.
A slight chance of rain showers between 8pm and 2am. Mostly cloudy, with a low around 55.
A slight chance of rain showers after 2pm. Partly sunny, with a high near 68.
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Sunny
|
60°F |
7 to 10 mph
NW
|
|
Saturday Night
Apr 11
|
Mostly Clear
|
41°F |
3 to 7 mph
N
|
|
Sunday
Apr 12
|
Mostly Sunny
|
54°F |
3 to 8 mph
E
|
|
Sunday Night
Apr 12
|
Mostly Cloudy
|
45°F |
9 mph
S
|
|
Monday
Apr 13
|
Mostly Cloudy
|
62°F |
10 to 16 mph
S
|
|
Monday Night
Apr 13
|
Mostly Cloudy
|
53°F |
12 to 16 mph
SW
|
|
Tuesday
Apr 14
|
Partly Sunny
|
69°F |
14 mph
SW
|
|
Tuesday Night
Apr 14
|
Slight Chance Rain Showers
|
55°F |
10 to 14 mph
SW
|
|
Wednesday
Apr 15
|
Partly Sunny then Slight Chance Rain Showers
|
68°F |
9 to 13 mph
SW
|
|
Wednesday Night
Apr 15
|
Slight Chance Rain Showers
|
51°F |
9 to 13 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Islip.
