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Llewellyn Park, New Jersey Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Llewellyn Park weather forecast — hour by hour, 7-day outlook, NOAA radar

Llewellyn Park, NJ
Sunday, July 5 at 1:34 AM
72
°
Overcast
Feels like
76°
Humidity
82%
Wind
5 mph
Sunrise
1:31 AM
Sunset
4:31 PM
Llewellyn Park, NJ
Hour by hour · 24h
24-Hour ForecastLlewellyn Park, NJ: 24-hour forecast. Temperatures range from 71 to 81 degrees Fahrenheit with a 64% chance of precipitation at 12 AM.
L 71°H 81°
Llewellyn Park, NJ
7-day forecast
  1. Today
    Jul 5
    Heavy Rain
    62%
    4.0″
    81°71°—
  2. Monday
    Jul 6
    Heavy Rain
    93%
    2.5″
    71°64°-10°
  3. Tuesday
    Jul 7
    Heavy Drizzle
    82%
    0.05″
    67°61°-4°
  4. Wednesday
    Jul 8
    Overcast
    24%
    —
    81°61°+14°
  5. Thursday
    Jul 9
    Light Drizzle
    19%
    —
    88°64°+7°
  6. Friday
    Jul 10
    Light Drizzle
    44%
    0.01″
    91°70°+3°
  7. Saturday
    Jul 11
    Overcast
    31%
    —
    87°64°-4°
Llewellyn Park, NJ
Next 24 hours · Mild now
68°76°84°12a6a12p6pnow 72°high 81°low 71°PRECIP %
Llewellyn Park, NJ
Anemometer · 24h winds · from true
NESW
From · True
WNW
289° · veering 23°
Direction
WNW
289°
Sustained
5
mph
Gust
20
mph
Peak 24h
27
avg 8
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 8 · pk 27 @ 9:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 232SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 23° from the wnw.
Llewellyn Park, NJ
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
999.6
+2.2 mb in 3h · rising rapidly · 29.52 inHg
Now
999.6
mb
3h
+2.2
mb
12h
+2.2
mb
24h
+1.5
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 996–1000
9909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1000.0995.51000.0
−24h−18h−12h−6hnow
Pressure climbing out of the rain band — clearing edging in.
Llewellyn Park, NJ
Air quality
45
AQI
Good
↓-44 in 6h

AQI 45 (Good), driven by PM2.5. AQI down 44 over the last 6 hours — air quality is improving sharply. PM scrubbed by 2 hours of recent rain — PM2.5 down to 6.0 µg/m³, PM10 to 6.2 µg/m³.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
6.0μg/m³
PM 10Good
6μg/m³
NO₂Good
10μg/m³
OzoneModerate
70μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 33. Overcast through the UV peak window (cloud cover ~77%) — afternoon ozone should stay flat.

Present
AQI 33
UV peak
3.3 at 1 PM
Sky at peak
overcast
Projected peak
AQI 7

PM × Wind × Precip

PM scrubbed by 2 hours of recent rain — PM2.5 down to 6.0 µg/m³, PM10 to 6.2 µg/m³.

PM2.5/PM10
0.97
Wind
light
Recent rain
2h in last 6h
Pattern
washed out

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).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³640
Llewellyn Park, NJ
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
32.0mi
UNLIMITED
117 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
05:34 UTC · Llewellyn Park, NJ · 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
05:34 UTC · Llewellyn Park, NJ · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Llewellyn Park, NJ
Satellite · infrared · animated
Llewellyn Park, NJ
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Llewellyn Park, NJ
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:59 AM
Sunrise
1:31 AM
Daylight
15h 00m
Sunset
4:31 PM
Civil dusk
9:05 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Llewellyn Park, NJ
The moon
Waning Gibbous
75% illuminated
Moonrise
11:14 PM
Moonset
11:06 AM
In sign
♓︎ Pisces
Llewellyn Park, NJ
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Llewellyn Park at a glance

  • Today vs. normal: 72°F — typical for the season
  • Last frost: April 21 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

15-Day Forecast — Llewellyn Park

  1. Sun85°71°62%
  2. Mon71°64°93%
  3. Tue67°61°82%
  4. Wed81°61°24%
  5. Thu88°64°19%
  6. Fri91°70°44%
  7. Sat87°64°31%
  8. Sun81°62°20%
  9. Mon85°61°17%
  10. Tue88°65°18%
  11. Wed87°69°37%
  12. Thu88°67°39%
  13. Fri84°65°29%
  14. Sat86°68°27%
  15. Sun94°74°35%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, 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 — Llewellyn Park

SPC has placed Llewellyn Park 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.

January 1–5: The year turns in silence.January 6–10: Ice thickens on still water.January 11–15: Shortest shadows lengthen.January 16–20: Pheasants begin to call.January 21–25: Springs begin to thaw.January 26–31: Chickadees announce dawn.February 1–5: East wind softens the frost.February 6–10: Sap begins to rise.February 11–15: First snowdrops appear.February 16–20: Red-winged blackbirds return.February 21–25: Rain begins to replace snow.February 26–28: Skunk cabbage pushes through ice.March 1–5: Ice withdraws from the reservoir.March 6–10: Crocuses open to weak sun.March 11–15: Peepers call from the marsh.March 16–20: Woodcocks spiral at dusk.March 21–25: Equinox — light overtakes dark.March 26–31: Forsythia opens along the fences.April 1–5: Cherry blossoms drift like snow.April 6–10: Warblers appear in the understory.April 11–15: Magnolias bloom and fall in a day.April 16–20: Dogwoods float above the forest.April 21–25: Lilacs perfume the evening.April 26–30: Last frost releases the garden.May 1–5: Warblers flood the Ramble.May 6–10: Tulip poplars light their candles.May 11–15: Shad run up the rivers.May 16–20: Roses open along the stoops.May 21–25: Firefly scouts appear at dusk.May 26–31: Strawberries ripen in the sun.June 1–5: Fireflies rise from the lawn.June 6–10: Elderflowers open in hedgerows.June 11–15: Solstice approaches — longest light.June 16–20: Honeysuckle sweetens the night.June 21–25: Solstice — the sun stands still.June 26–30: Lightning bugs drift through oaks.July 1–5: Cicadas claim the afternoon.July 6–10: Queen Anne's lace lines the roads.July 11–15: Thunder builds each afternoon.July 16–20: Corn reaches for the tassels.July 21–25: Dog days settle in the haze.July 26–31: Katydids begin their chorus.August 1–5: Night falls a minute earlier.August 6–10: Sunflowers face the morning.August 11–15: Goldenrod begins to bloom.August 16–20: Crickets pulse through warm nights.August 21–25: First cool morning surprises.August 26–31: Monarchs stage for flight.September 1–5: School buses reappear.September 6–10: Asters purple the roadsides.September 11–15: Hawk migration over the Hudson.September 16–20: Equinox — dark overtakes light.September 21–25: Apples hang heavy on the branch.September 26–30: Geese begin to chevron south.October 1–5: Witch hazel blooms as others fade.October 6–10: Maples begin to blaze.October 11–15: Frost paints the garden black.October 16–20: Oaks turn bronze and russet.October 21–25: Leaves rattle down the gutters.October 26–31: Clocks fall back — dusk at five.November 1–5: Ginkgos drop overnight.November 6–10: Last leaves cling stubbornly.November 11–15: Juncos arrive from the north.November 16–20: Bare branches reveal the sky.November 21–25: First flurries dust the rooftops.November 26–30: Woodsmoke curls through the block.December 1–5: Darkness settles before dinner.December 6–10: Holly and winterberry persist.December 11–15: Shortest day approaches.December 16–20: Ice begins to form at the edges.December 21–25: Solstice — the sun begins return.December 26–31: The year turns in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the afternoon

Annual cicada buzz begins, peaking in the heat of the day.

Day 186 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

Llewellyn Park peaks at about 75°F in July and bottoms near 29°F in January; December brings the heaviest rain (4.3 inches) and February the least (3.0 inches).

MonthMean tempPrecipRainy days
January29°3.6″13
February31°3.0″13
March39°3.8″16
April51°4.1″17
May59°3.9″18
June69°3.9″17
July75°3.8″17
August74°4.2″17
September67°3.7″14
October57°3.3″12
November43°3.9″13
December34°4.3″13

Frequently asked

When does it freeze in Llewellyn Park?
In Llewellyn Park, expect the last spring frost near mid-April; Llewellyn Park's first autumn frost comes around mid-November.
What is the rainy season in Llewellyn Park?
Llewellyn Park sees its heaviest rain in December (around 4.3 inches), part of roughly 45 inches a year.
What is the warmest month in Llewellyn Park?
July is Llewellyn Park's warmest month, averaging about 75°F.
What is the coldest month in Llewellyn Park?
Llewellyn Park bottoms out in January, with a mean near 29°F.
When can I start a vegetable garden in Llewellyn Park?
Llewellyn Park's last frost (mid-April) cues hardy greens; in Llewellyn Park, hold heat-lovers two weeks past.
How many rainy days does Llewellyn Park get?
Llewellyn Park averages about 180 days with measurable rain or snow each year.
What hardiness zone is Llewellyn Park?
Llewellyn Park sits in the USDA zone set by January lows near 29°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Llewellyn Park?
Llewellyn Park's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Llewellyn Park?
See this week's day-by-day rain chances for Llewellyn Park in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Llewellyn Park?
Current conditions for Llewellyn Park and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Llewellyn Park forecast updated?
The Llewellyn Park forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Llewellyn Park?
Today's sunrise and sunset times for Llewellyn Park are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Llewellyn Park?
The next few days in Llewellyn Park's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Llewellyn Park, New Jersey has a warm-summer humid continental climate: January averages roughly 29°F, July about 75°F, 46°F between them.

Yearly precipitation in Llewellyn Park totals around 45 inches, spread over about 180 days of rain or snow.

Latitude 40.8°N gives Llewellyn Park its 46°F swing, and with it the rhythm of Llewellyn Park's growing season.

Beaches near Llewellyn Park

Each linked page shows live water temperature, wave height, swim and surf verdicts, tides, and rip-current risk from NDBC + NOAA + NWS data.

All cities in New Jersey →

East Orange, NJ weather →

ZIP codes in Llewellyn Park

  • 07052

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.