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

The College of New Jersey, New Jersey Weather

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

The College of New Jersey weather forecast — hour by hour, 7-day outlook, NOAA radar

The College of New Jersey, NJ
Saturday, July 4 at 9:21 PM
87
°
Mostly Clear
Feels like
91°
Humidity
49%
Wind
5 mph
Sunrise
1:34 AM
Sunset
4:32 PM
The College of New Jersey, NJ
Hour by hour · 24h
24-Hour ForecastThe College of New Jersey, NJ: 24-hour forecast. Temperatures range from 73 to 89 degrees Fahrenheit with a 61% chance of precipitation at 11 PM.
L 73°H 89°
The College of New Jersey, NJ
7-day forecast
  1. Today
    Jul 4
    Rain
    61%
    0.34″
    98°72°—
  2. Sunday
    Jul 5
    Heavy Rain
    56%
    2.8″
    89°72°-9°
  3. Monday
    Jul 6
    Heavy Rain
    92%
    0.74″
    77°68°-12°
  4. Tuesday
    Jul 7
    Heavy Drizzle
    89%
    0.01″
    72°65°-5°
  5. Wednesday
    Jul 8
    Overcast
    23%
    —
    76°61°+4°
  6. Thursday
    Jul 9
    Light Drizzle
    11%
    —
    90°65°+14°
  7. Friday
    Jul 10
    Drizzle
    38%
    0.08″
    92°74°+2°
The College of New Jersey, NJ
Next 24 hours · Warm now
HOT 90°70°82°94°6p12a6a12pnow 89°high 89°low 73°PRECIP %
The College of New Jersey, NJ
Anemometer · 24h winds · from true
NESW
From · True
NNW
327° · veering 136°
Direction
NNW
327°
Sustained
5
mph
Gust
10
mph
Peak 24h
19
avg 6
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 6 · pk 19 @ 4:00p
010203040MPHB1B2B3B4B5B6B7B8-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 3515SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 136° from the nnw.
The College of New Jersey, NJ
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1006.1
+0.1 mb in 3h · steady · 29.71 inHg
Now
1006.1
mb
3h
+0.1
mb
12h
-3.3
mb
24h
-4.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1004–1010
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1009.61004.41005.6
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
The College of New Jersey, NJ
Air quality
95
AQI
Moderate
↑+22 in 6h

AQI 95 (Moderate), driven by Ozone. AQI up 22 in the last 6 hours — air quality is degrading. Ozone at AQI 48. Overcast through the UV peak window (cloud cover ~80%) — afternoon ozone should stay flat.

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

PM 2.5Good
7.1μg/m³
PM 10Good
7μg/m³
NO₂Good
10μg/m³
OzoneDRIVERUnhealthy SG
101μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 48. Overcast through the UV peak window (cloud cover ~80%) — afternoon ozone should stay flat.

Present
AQI 48
UV peak
0.0 at 1 PM
Sky at peak
overcast
Projected peak
AQI 6

PM × Wind × Precip

PM scrubbed by 3 hours of recent rain — PM2.5 down to 7.1 µg/m³, PM10 to 7.3 µg/m³.

PM2.5/PM10
0.97
Wind
light
Recent rain
3h 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/m³420
The College of New Jersey, NJ
Sky cover · visibility · 24h
Cloud cover
41%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
74.6mi
UNLIMITED
113 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
01:21 UTC · The College of New Jersey, 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
01:21 UTC · The College of New Jersey, NJ · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
The College of New Jersey, NJ
Satellite · infrared · animated
The College of New Jersey, NJ
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
The College of New Jersey, NJ
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:03 AM
Sunrise
1:34 AM
Daylight
14h 58m
Sunset
4:32 PM
Civil dusk
9:06 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
The College of New Jersey, NJ
The moon
Waning Gibbous
77% illuminated
Moonrise
11:16 PM
Moonset
11:08 AM
In sign
♓︎ Pisces
The College of New Jersey, NJ
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

The College of New Jersey at a glance

  • Today vs. normal: 16°F above the seasonal normal for this latitude
  • Last frost: April 18 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — The College of New Jersey

  1. Sat98°72°61%
  2. Sun89°72°56%
  3. Mon77°68°92%
  4. Tue72°65°89%
  5. Wed76°61°23%
  6. Thu90°65°11%
  7. Fri92°74°38%
  8. Sat86°65°36%
  9. Sun77°64°28%
  10. Mon85°61°23%
  11. Tue90°65°19%
  12. Wed92°69°40%
  13. Thu88°67°48%
  14. Fri89°67°43%
  15. Sat87°68°45%
  16. Sun95°76°46%

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 — The College of New Jersey

SPC has placed The College of New Jersey in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWSLGTSlight 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

The College of New Jersey's warmest month is July (~77°F mean) and its coldest is January (~31°F). Rainfall peaks in August (4.2 inches) and bottoms out in October (3.0 inches).

MonthMean tempPrecipRainy days
January31°3.5″13
February33°3.1″12
March42°3.8″15
April53°4.0″16
May61°3.7″17
June71°3.8″17
July77°3.8″16
August76°4.2″17
September69°3.7″13
October58°3.0″11
November45°3.7″12
December36°4.2″13

Regional context

The College of New Jersey's climate, from NOAA NCEI 1991-2020 station normals, pairs 31°F Januarys with 77°F Julys — a 46°F swing. About 44.4 inches of precipitation falls over roughly 173 days a year.

The College of New Jersey's precipitation spreads evenly: August peaks at 4.2 inches on 17.2 wet days, while October holds 3.0 inches over 10.6 — no month dominates The College of New Jersey's rain calendar. That lines The College of New Jersey up with places like Lawrenceville, NJ, Trenton, NJ and Pennington, NJ, fed by overlapping storm tracks.

By mid-April the frosts ease in The College of New Jersey, opening the season for peas, lettuce, spinach, and radishes. In The College of New Jersey, warm-season transplants — tomatoes, peppers, basil — wait two weeks past The College of New Jersey's frost date. The College of New Jersey's window closes around mid-November as overnight lows return below freezing. In The College of New Jersey, low spots run 4-7°F colder than nearby slopes, nudging The College of New Jersey's frost dates a week.

Similar climates: Lawrenceville, NJ, Trenton, NJ, Pennington, NJ, Washington Crossing, NJ, Mercerville, NJ.

Frequently asked

When does it freeze in The College of New Jersey?
The College of New Jersey's last spring frost lands near mid-April, and in The College of New Jersey the first fall frost follows around mid-November.
What is the rainy season in The College of New Jersey?
August is the wettest month in The College of New Jersey, about 4.2 inches on average; the year totals roughly 44 inches.
What is the warmest month in The College of New Jersey?
The College of New Jersey peaks in July, when the mean runs near 77°F.
What is the coldest month in The College of New Jersey?
January is The College of New Jersey's coldest month, averaging about 31°F.
When can I start a vegetable garden in The College of New Jersey?
Hardy spring crops go in near mid-April in The College of New Jersey; tender peppers and squash wait 10–14 days.
How many rainy days does The College of New Jersey get?
The College of New Jersey averages about 173 days with measurable rain or snow each year.
What hardiness zone is The College of New Jersey?
Because The College of New Jersey bottoms near 31°F in January, that winter low sets The College of New Jersey's USDA zone — verify by ZIP.
What is the 10-day forecast for The College of New Jersey?
The College of New Jersey'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 The College of New Jersey?
See this week's day-by-day rain chances for The College of New Jersey in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in The College of New Jersey?
Current conditions for The College of New Jersey and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the The College of New Jersey forecast updated?
The The College of New Jersey forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in The College of New Jersey?
Today's sunrise and sunset times for The College of New Jersey 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 The College of New Jersey?
The next few days in The College of New Jersey's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a warm-summer humid continental zone, The College of New Jersey, New Jersey swings from 31°F in the heart of winter to 77°F at midsummer — a 46°F arc.

Rain and snow bring The College of New Jersey roughly 44 inches a year across approximately 173 measurable-precipitation days.

The College of New Jersey's 46°F range, set by its 40.3°N position, drives frost timing and what thrives in The College of New Jersey.

All cities in New Jersey →

Trenton, NJ weather →

ZIP codes in The College of New Jersey

  • 08638
  • 08618

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.