Middlesex County, New Jersey, United States

Last updated: 6:19 PM CDT · Refresh

24°C

Feels like 27°

Mostly Cloudy

▲ 29° / ▼ 21°

Wind

7 mph S

Humidity

92%

Dew Point

22°

Pressure

29.59 inHg

Visibility

8 mi

UV Index

1.8

Cloud Cover

78%

Sunrise

5:45 AM

Sunset

8:22 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Middlesex County is currently mostly cloudy at 24°C. Precipitation is likely — peak probability 90% around 7 PM. Atmospheric instability is elevated (CAPE up to 1572 J/kg) — isolated convective development possible. Sunrise: 5:45AM · Sunset: 8:22PM.

77 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

24°

90%

8 PM

24°

77%

9 PM

24°

84%

10 PM

23°

77%

11 PM

23°

71%

12 AM

23°

52%

1 AM

23°

47%

2 AM

23°

47%

3 AM

23°

47%

4 AM

23°

48%

5 AM

21°

48%

6 AM

21°

48%

7 AM

22°

45%

8 AM

23°

46%

9 AM

24°

43%

10 AM

25°

44%

11 AM

26°

33%

12 PM

26°

23%

1 PM

27°

24%

2 PM

28°

24%

3 PM

28°

24%

4 PM

28°

25%

5 PM

28°

25%

6 PM

27°

28%

7-Day Forecast

Tonight

29° 21°

Mostly Cloudy with a 90% chance of rain.

Wed

29° 21°

Partly Cloudy with a 48% chance of rain.

Thu

28° 18°

Mostly Clear.

Fri

27° 17°

Fog.

Sat

28° 17°

Partly Cloudy.

Sun

29° 18°

Rain, 71% chance.

Mon

30° 19°

Drizzle, 60% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 24° Mostly Cloudy 90% 7 mph S 92%

8 PM 24° Overcast 77% 9 mph SSW 92%

9 PM 24° Heavy Rain 84% 7 mph SSW 95%

10 PM 23° Overcast 77% 8 mph SSW 95%

11 PM 23° Overcast 71% 8 mph SSW 96%

12 AM 23° Overcast 52% 9 mph SSW 96%

1 AM 23° Overcast 47% 10 mph SSW 96%

2 AM 23° Overcast 47% 11 mph SW 94%

3 AM 23° Mostly Cloudy 47% 11 mph SW 94%

4 AM 23° Mostly Cloudy 48% 11 mph SW 93%

5 AM 21° Mostly Cloudy 48% 10 mph SW 92%

6 AM 21° Mostly Cloudy 48% 10 mph SW 91%

7 AM 22° Partly Cloudy 45% 9 mph SW 90%

8 AM 23° Partly Cloudy 46% 9 mph SW 87%

9 AM 24° Partly Cloudy 43% 9 mph WSW 82%

10 AM 25° Partly Cloudy 44% 10 mph WSW 76%

11 AM 26° Partly Cloudy 33% 10 mph WSW 71%

12 PM 26° Partly Cloudy 23% 10 mph WSW 66%

1 PM 27° Partly Cloudy 24% 10 mph WSW 62%

2 PM 28° Partly Cloudy 24% 10 mph W 60%

3 PM 28° Mostly Clear 24% 9 mph WSW 58%

4 PM 28° Mostly Clear 25% 9 mph WSW 57%

5 PM 28° Mostly Clear 25% 9 mph WSW 57%

6 PM 27° Mostly Clear 28% 8 mph W 60%

15-Day Forecast

Today

7/21

Mostly Cloudy

90%

21°

29°

Wed

7/22

Partly Cloudy

48%

21°

29°

Thu

7/23

Mostly Clear

12%

18°

28°

Fri

7/24

Fog

17°

27°

Sat

7/25

Partly Cloudy

17°

28°

Sun

7/26

Rain

71%

18°

29°

Mon

7/27

Drizzle

60%

19°

30°

Tue

7/28

Drizzle

63%

21°

29°

Wed

7/29

Drizzle

68%

20°

28°

Thu

7/30

Drizzle

68%

19°

29°

Fri

7/31

Drizzle

46%

20°

29°

Sat

8/1

Drizzle

60%

21°

28°

Sun

8/2

Drizzle

60%

21°

30°

Mon

8/3

Drizzle

60%

22°

29°

Tue

8/4

Drizzle

60%

22°

30°

Moderate

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

77 AQI 22.8 µg/m³

O₃

Ground-level ozone

36 AQI 39 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Wed 77 Moderate 36 77

Thu 40 Good 39 40

Fri 51 Moderate 39 51

About the Air Quality Index

0–50 Good

51–100 Moderate

101–150 Unhealthy for Sensitive Groups

151–200 Unhealthy

201–300 Very Unhealthy

301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Tue Jul 21, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE871 J/kg

MLCAPE1396 J/kg

MUCAPE1731 J/kg

SBCIN-130 J/kg

MLCIN0 J/kg

Lifted Index-4.5

Kinematics

0–6 km Shear37 kt

0–1 km Shear15 kt

Eff. Shear37 kt

0–1 km SRH56

0–3 km SRH14

Eff. SRH14

Storm Motion225° @ 37 kt

0–1 km EHI0.3

Composite Parameters

Sig. Tornado0.4

STP (eff)0.0

Supercell0.4

K-Index31.6

Thermo & Levels

PWAT2.03 in

0–3 km LR4.9 °C/km

700–500 LR6.4 °C/km

Total Totals47.9

LCL974 hPa

LFC726 hPa

EL203 hPa

Freezing Lvl14,190 ft

Middlesex County, New Jersey, United States

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