West Islip, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
West Islip weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle31%0.01″94°74°—
- SundayJul 5Heavy Rain45%0.84″84°71°-10°
- MondayJul 6Light Showers87%0.16″72°70°-12°
- TuesdayJul 7Drizzle82%0.04″73°64°+1°
- WednesdayJul 8Overcast20%—78°64°+5°
- ThursdayJul 9Light Drizzle——81°71°+3°
- FridayJul 10Light Drizzle39%—86°75°+5°
AQI 103 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 49 in the last 6 hours — air quality is degrading. Ozone at AQI 159 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 159 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 159
- UV peak
- 3.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 159
PM × Wind × Precip
PM2.5 at 14.7 µg/m³ (AQI 61) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:48 PM
- Moonset
- 9:56 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
West Islip at a glance
- Today vs. normal: 23°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 11795
16-Day Forecast — West Islip
- Sat96°74°31%
- Sun84°71°45%
- Mon72°70°87%
- Tue73°64°82%
- Wed78°64°20%
- Thu81°71°9%
- Fri86°75°39%
- Sat88°76°38%
- Sun84°74°19%
- Mon75°68°17%
- Tue78°68°20%
- Wed82°68°25%
- Thu88°75°45%
- Fri87°75°42%
- Sat86°78°35%
- Sun89°78°42%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — West Islip
SPC has placed West Islip in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Beaches near West Islip
- Robert Moses Beach5.8 mi
- Jones Beach13.4 mi
- Long Beach NY20.6 mi
Each linked page shows live water temperature, wave height, swim and surf verdicts, tides, and rip-current risk from NDBC + NOAA + NWS data.
ZIP codes in West Islip
- 11795