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

Rocky Hill, New Jersey Weather

Solstice approaches — longest light. Day 85 of spring. Read this microseason across nine climate regions →

Rocky Hill weather forecast — hour by hour, 7-day outlook, NOAA radar

Rocky Hill, NJ
Friday, June 12 at 7:35 PM
89
°
Overcast
Feels like
96°
Humidity
56%
Wind
6 mph
Sunrise
1:27 AM
Sunset
4:29 PM
Rocky Hill, NJ
Hour by hour · 24h
24-Hour ForecastRocky Hill, NJ: 24-hour forecast. Temperatures range from 67 to 90 degrees Fahrenheit with a 27% chance of precipitation at 7 PM.
L 67°H 90°
Rocky Hill, NJ
7-day forecast
  1. Today
    Jun 12
    Thunderstorm
    35%
    91°72°
  2. Saturday
    Jun 13
    Overcast
    90°67°-1°
  3. Sunday
    Jun 14
    Heavy Showers
    67%
    2.4″
    90°65°
  4. Monday
    Jun 15
    Drizzle
    67%
    0.02″
    75°57°-15°
  5. Tuesday
    Jun 16
    Overcast
    77°58°+2°
  6. Wednesday
    Jun 17
    Overcast
    21%
    78°58°+1°
  7. Thursday
    Jun 18
    Foggy
    38%
    86°62°+8°
Rocky Hill, NJ
Anemometer · 24h winds · from true
NESW
From · True
W
281° · veering 48°
Direction
W
281°
Sustained
6
mph
Gust
15
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 @ 10:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2210SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 48° from the w.
Rocky Hill, NJ
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1001.9
-0.2 mb in 3h · steady · 29.59 inHg
Now
1001.9
mb
3h
-0.2
mb
12h
-2.0
mb
24h
-0.9
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10011004
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1003.71001.11001.3
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
Rocky Hill, NJ
Air quality
68
AQI
Moderate
+28 in 6h

AQI 68 (Moderate), driven by PM2.5. AQI up 28 in the last 6 hours — air quality is degrading. PM2.5 at 9.3 µg/m³ (AQI 51) with a 0.97 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.

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

PM 2.5DRIVERGood
9.3μg/m³
PM 10Good
10μg/m³
NO₂Good
8μg/m³
OzoneModerate
79μg/m³
UV IndexLow
0.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 37 now. With UV 0.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 around 1 PM.

Present
AQI 37
UV peak
0.2 at 1 PM
Sky at peak
clear
Projected peak
AQI 9

PM × Wind × Precip

PM2.5 at 9.3 µg/m³ (AQI 51) with a 0.97 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.97
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke
Rocky Hill, NJ
Sky cover · visibility · 24h
Cloud cover
96%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
79.5mi
UNLIMITED
82 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
23:35 UTC · Rocky Hill, 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
23:35 UTC · Rocky Hill, NJ · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Rocky Hill, NJ
Satellite · infrared · animated
Rocky Hill, NJ
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Rocky Hill, NJ
Almanac · Friday, June 12
A summer fog for fair, a winter fog for rain.
Civil dawn
4:56 AM
Sunrise
1:27 AM
Daylight
15h 02m
Sunset
4:29 PM
Civil dusk
9:03 PM
Planting note
Prune spring-blooming shrubs after flowers fade.
Rocky Hill, NJ
The moon
Waning Crescent
6% illuminated
Moonrise
2:57 AM
Moonset
6:15 PM
In sign
♉︎ Taurus
Rocky Hill, NJ
Microseason
Jun 11–15

Solstice approaches — longest light

celestial
Jan 145% of the yearDec 31

Read this microseason across nine climate regions →

Rocky Hill at a glance

  • Today vs. normal: 14°F above the seasonal normal for this latitude
  • Last frost: April 18 (climatological average for this latitude)
  • Microseason: Jun 11–15
  • Planting window: Prune spring-blooming shrubs after flowers fade.

16-Day Forecast — Rocky Hill

  1. Fri91°72°35%
  2. Sat90°68°0%
  3. Sun90°65°67%
  4. Mon75°57°67%
  5. Tue77°58°6%
  6. Wed78°58°21%
  7. Thu86°62°38%
  8. Fri81°62°19%
  9. Sat81°55°10%
  10. Sun84°63°15%
  11. Mon79°66°14%
  12. Tue85°63°16%
  13. Wed86°57°20%
  14. Thu78°65°20%
  15. Fri86°66°34%
  16. Sat81°58°39%

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

Right now in the garden

Peak growing season

As of June 12, 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 — Rocky Hill

SPC has placed Rocky Hill in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWNONENo severe risk
  • DAY 3SLGTSlight Risk

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.

ZIP codes in Rocky Hill

  • 08553

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.