Weather StoryAlmanac, microseasons, and the day's weather story.

Islip Terrace, New York Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Islip Terrace weather forecast — hour by hour, 7-day outlook, NOAA radar

Islip Terrace, NY
Saturday, July 4 at 4:06 PM
94
°
Clear
Feels like
102°
Humidity
48%
Wind
7 mph
Sunrise
1:26 AM
Sunset
4:27 PM
Islip Terrace, NY
Hour by hour · 24h
24-Hour ForecastIslip Terrace, NY: 24-hour forecast. Temperatures range from 73 to 94 degrees Fahrenheit with a 37% chance of precipitation at 12 AM.
L 73°H 94°
Islip Terrace, NY
7-day forecast
  1. Today
    Jul 4
    Overcast
    33%
    95°75°
  2. Sunday
    Jul 5
    Heavy Rain
    43%
    1.9″
    85°71°-10°
  3. Monday
    Jul 6
    Light Showers
    86%
    0.15″
    72°70°-13°
  4. Tuesday
    Jul 7
    Drizzle
    82%
    0.04″
    73°64°+1°
  5. Wednesday
    Jul 8
    Overcast
    20%
    78°64°+5°
  6. Thursday
    Jul 9
    Light Drizzle
    81°71°+3°
  7. Friday
    Jul 10
    Light Drizzle
    39%
    86°74°+5°
Islip Terrace, NY
Anemometer · 24h winds · from true
NESW
From · True
SSW
205° · steady
Direction
SSW
205°
Sustained
7
mph
Gust
13
mph
Peak 24h
24
avg 7
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 7 · pk 24 @ 10:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 278SUSTGUST
−24h−18h−12h−6hnow
Light breeze holding from the ssw.
Islip Terrace, NY
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1010.5
-0.6 mb in 3h · falling · 29.84 inHg
Now
1010.5
mb
3h
-0.6
mb
12h
-0.3
mb
24h
-0.3
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10101012
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1011.71010.11010.5
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Islip Terrace, NY
Air quality
103
AQI
Unhealthy for Sensitive Groups
+49 in 6hPeak ~145 @ 11 PM

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.

PM 2.5Moderate
14.7μg/m³
PM 10Good
17μg/m³
NO₂Good
5μg/m³
OzoneDRIVERUnhealthy
175μg/m³
UV IndexModerate
3.9

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, PM10 at 17.1 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.86
Wind
light
Recent rain
0h in last 6h
Pattern
background
Islip Terrace, NY
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
82.6mi
UNLIMITED
84 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
20:06 UTC · Islip Terrace, NY · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
20:06 UTC · Islip Terrace, NY · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Islip Terrace, NY
Satellite · infrared · animated
Islip Terrace, NY
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Islip Terrace, NY
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:54 AM
Sunrise
1:26 AM
Daylight
15h 01m
Sunset
4:27 PM
Civil dusk
9:01 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Islip Terrace, NY
The moon
Waning Gibbous
79% illuminated
Moonrise
10:47 PM
Moonset
9:55 AM
In sign
♓︎ Pisces
Islip Terrace, NY
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Islip Terrace at a glance

  • Today vs. normal: 23°F above the seasonal normal for this latitude
  • Last frost: April 21 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 11752

16-Day Forecast — Islip Terrace

  1. Sat95°75°33%
  2. Sun85°71°43%
  3. Mon72°70°86%
  4. Tue73°64°82%
  5. Wed78°64°20%
  6. Thu81°71°9%
  7. Fri86°74°39%
  8. Sat88°76°37%
  9. Sun84°74°18%
  10. Mon75°68°18%
  11. Tue78°68°20%
  12. Wed82°68°25%
  13. Thu88°75°45%
  14. Fri87°75°35%
  15. Sat85°78°27%
  16. 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 — Islip Terrace

SPC has placed Islip Terrace 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 Islip Terrace

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 Islip Terrace

  • 11752

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.