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

Barnum Island, New York Weather

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

Barnum Island weather forecast — hour by hour, 7-day outlook, NOAA radar

Barnum Island, NY
Saturday, July 4 at 4:08 PM
96
°
Clear
Feels like
99°
Humidity
37%
Wind
8 mph
Sunrise
1:29 AM
Sunset
4:28 PM
Barnum Island, NY
Hour by hour · 24h
24-Hour ForecastBarnum Island, NY: 24-hour forecast. Temperatures range from 72 to 96 degrees Fahrenheit with a 45% chance of precipitation at 12 AM.
L 72°H 96°
Barnum Island, NY
7-day forecast
  1. Today
    Jul 4
    Heavy Rain
    39%
    0.39″
    96°74°
  2. Sunday
    Jul 5
    Rain
    50%
    0.36″
    84°71°-12°
  3. Monday
    Jul 6
    Showers
    88%
    0.08″
    73°71°-11°
  4. Tuesday
    Jul 7
    Drizzle
    79%
    0.05″
    73°66°
  5. Wednesday
    Jul 8
    Overcast
    17%
    76°65°+3°
  6. Thursday
    Jul 9
    Light Drizzle
    79°72°+3°
  7. Friday
    Jul 10
    Light Drizzle
    39%
    85°75°+6°
Barnum Island, NY
Anemometer · 24h winds · from true
NESW
From · True
WSW
238° · veering 51°
Direction
WSW
238°
Sustained
8
mph
Gust
13
mph
Peak 24h
32
avg 6
Beaufort · 3 · GENTLE 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 6 · pk 32 @ 9:00p
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 309SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 51° from the wsw.
Barnum Island, NY
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1011.8
-0.4 mb in 3h · steady · 29.88 inHg
Now
1011.8
mb
3h
-0.4
mb
12h
-0.5
mb
24h
-0.1
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10111013
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1013.21011.31011.8
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Barnum Island, NY
Air quality
109
AQI
Unhealthy for Sensitive Groups
+50 in 6hPeak ~152 @ 11 PM

AQI 109 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 50 in the last 6 hours — air quality is degrading. Ozone at AQI 166 — 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
16.5μg/m³
PM 10Good
19μg/m³
NO₂Good
5μg/m³
OzoneDRIVERUnhealthy
180μg/m³
UV IndexModerate
4.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 166 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 166
UV peak
3.9 at earlier today
Sky at peak
clear
Projected peak
AQI 166

PM × Wind × Precip

PM2.5 at 16.5 µg/m³, PM10 at 19.0 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.87
Wind
light
Recent rain
0h in last 6h
Pattern
background
Barnum Island, NY
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
90.7mi
UNLIMITED
98 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
20:08 UTC · Barnum Island, 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
20:08 UTC · Barnum Island, NY · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Barnum Island, NY
Satellite · infrared · animated
Barnum Island, NY
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Barnum Island, NY
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:57 AM
Sunrise
1:29 AM
Daylight
14h 59m
Sunset
4:28 PM
Civil dusk
9:03 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Barnum Island, NY
The moon
Waning Gibbous
79% illuminated
Moonrise
10:49 PM
Moonset
9:57 AM
In sign
♓︎ Pisces
Barnum Island, NY
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Barnum Island at a glance

  • Today vs. normal: 25°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.

16-Day Forecast — Barnum Island

  1. Sat97°74°39%
  2. Sun84°71°50%
  3. Mon73°71°88%
  4. Tue73°66°79%
  5. Wed76°65°17%
  6. Thu79°72°9%
  7. Fri85°75°39%
  8. Sat84°76°39%
  9. Sun80°75°21%
  10. Mon76°69°18%
  11. Tue77°71°22%
  12. Wed79°71°25%
  13. Thu85°75°45%
  14. Fri84°76°42%
  15. Sat83°76°35%
  16. Sun86°77°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 — Barnum Island

SPC has placed Barnum Island 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 Barnum Island

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 Barnum Island

  • 11558

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.