Middlesex County, New Jersey, United States

Last updated: 10:25 PM CDT  ·  Refresh
18°C
Feels like 17°
Overcast
▲ 27°  /  ▼ 17°
Wind
11 mph NNE
Humidity
87%
Dew Point
17°
Pressure
29.86 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
95%
Sunrise
6:13 AM
Sunset
7:47 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Middlesex County is currently overcast at 19°C. Precipitation is likely — peak probability 73% around 1 AM. Sunrise: 6:13AM · Sunset: 7:47PM.

Alerts

No active alerts for this location.
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
37%
12 AM
19°
40%
1 AM
19°
73%
2 AM
18°
63%
3 AM
18°
45%
4 AM
18°
27%
5 AM
17°
15%
6 AM
17°
27%
7 AM
17°
15%
8 AM
18°
15%
9 AM
19°
16%
10 AM
21°
16%
11 AM
22°
8%
12 PM
23°
8%
1 PM
24°
3%
2 PM
24°
3%
3 PM
24°
3%
4 PM
25°
5%
5 PM
26°
8%
6 PM
26°
8%
7 PM
24°
5%
8 PM
24°
11%
9 PM
22°
22%
10 PM
21°
26%
7-Day Forecast
Tonight
27° 17°
Overcast with a 37% chance of rain.
Fri
26° 17°
Partly Cloudy with a 63% chance of rain.
Sat
24° 19°
Rain, 85% chance.
Sun
29° 19°
Rain, 69% chance.
Mon
28° 18°
Clear.
Tue
28° 18°
Rain, 61% chance.
Wed
29° 19°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 18° Overcast 37% 11 mph NNE 87%
12 AM 19° Overcast 40% 11 mph N 88%
1 AM 19° Overcast 73% 11 mph N 89%
2 AM 18° Overcast 63% 10 mph N 88%
3 AM 18° Overcast 45% 9 mph N 86%
4 AM 18° Overcast 27% 8 mph N 84%
5 AM 17° Mostly Cloudy 15% 9 mph N 83%
6 AM 17° Partly Cloudy 27% 9 mph N 80%
7 AM 17° Partly Cloudy 15% 9 mph N 78%
8 AM 18° Partly Cloudy 15% 9 mph N 74%
9 AM 19° Partly Cloudy 16% 8 mph N 70%
10 AM 21° Mostly Clear 16% 8 mph N 66%
11 AM 22° Mostly Clear 8% 8 mph NNE 63%
12 PM 23° Mostly Clear 8% 8 mph NNE 62%
1 PM 24° Partly Cloudy 3% 7 mph NNE 61%
2 PM 24° Partly Cloudy 3% 6 mph NNE 60%
3 PM 24° Partly Cloudy 3% 5 mph NNE 59%
4 PM 25° Partly Cloudy 5% 4 mph NE 58%
5 PM 26° Partly Cloudy 8% 4 mph NE 60%
6 PM 26° Partly Cloudy 8% 4 mph NE 65%
7 PM 24° Partly Cloudy 5% 4 mph ENE 70%
8 PM 24° Partly Cloudy 11% 4 mph ENE 74%
9 PM 22° Partly Cloudy 22% 4 mph E 79%
10 PM 21° Mostly Clear 26% 4 mph ESE 84%
15-Day Forecast
Today
8/20
Overcast
37%
17°
27°
Fri
8/21
Partly Cloudy
63%
17°
26°
Sat
8/22
Rain
85%
19°
24°
Sun
8/23
Rain
69%
19°
29°
Mon
8/24
Clear
10%
18°
28°
Tue
8/25
Rain
61%
18°
28°
Wed
8/26
Drizzle
71%
19°
29°
Thu
8/27
Rain
82%
20°
28°
Fri
8/28
Rain
69%
19°
29°
Sat
8/29
Rain
68%
20°
30°
Sun
8/30
Rain
77%
20°
30°
Mon
8/31
Drizzle
60%
20°
28°
Tue
9/1
Drizzle
60%
19°
28°
Wed
9/2
Drizzle
60%
19°
28°
Thu
9/3
Drizzle
60%
19°
27°
31
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
31 AQI 5.6 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 31 Good 31 31
Sat 44 Good 44 32
Sun 41 Good 21 41
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. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Aug 21, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE10 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index5.8
Kinematics
0–6 km Shear35 kt
0–1 km Shear15 kt
Eff. Shear—
0–1 km SRH9
0–3 km SRH137
Eff. SRH—
Storm Motion319° @ 23 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index32.4
Thermo & Levels
PWAT1.80 in
0–3 km LR3.7 °C/km
700–500 LR5.4 °C/km
Total Totals42.5
LCL990 hPa
LFC—
EL—
Freezing Lvl15,203 ft