Middlesex County, New Jersey, United States

Last updated: 9:08 PM CDT  ·  Refresh
66°F
Feels like 62°
Fog
▲ 81°  /  ▼ 62°
Wind
14 mph N
Humidity
89%
Dew Point
64°
Pressure
29.85 inHg
Visibility
1 mi
UV Index
0.0
Cloud Cover
86%
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 fog at 66°F. Dry conditions are expected through the next 24 hours. 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
66°
37%
11 PM
67°
41%
12 AM
66°
36%
1 AM
66°
38%
2 AM
66°
30%
3 AM
65°
30%
4 AM
65°
30%
5 AM
62°
15%
6 AM
62°
27%
7 AM
63°
15%
8 AM
63°
16%
9 AM
66°
16%
10 AM
69°
16%
11 AM
71°
8%
12 PM
73°
8%
1 PM
74°
8%
2 PM
75°
3%
3 PM
76°
3%
4 PM
76°
3%
5 PM
78°
5%
6 PM
77°
5%
7 PM
76°
5%
8 PM
75°
5%
9 PM
71°
13%
7-Day Forecast
Tonight
81° 62°
Fog with a 37% chance of rain.
Fri
80° 62°
Partly Cloudy with a 38% chance of rain.
Sat
76° 67°
Rain, 78% chance.
Sun
84° 66°
Overcast with a 69% chance of rain.
Mon
82° 64°
Clear.
Tue
83° 64°
Rain, 61% chance.
Wed
84° 66°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 66° Fog 37% 14 mph N 89%
11 PM 67° Mostly Cloudy 41% 11 mph N 87%
12 AM 66° Mostly Cloudy 36% 10 mph N 86%
1 AM 66° Mostly Cloudy 38% 10 mph N 87%
2 AM 66° Overcast 30% 9 mph N 86%
3 AM 65° Mostly Cloudy 30% 9 mph N 85%
4 AM 65° Mostly Cloudy 30% 8 mph N 84%
5 AM 62° Mostly Cloudy 15% 9 mph N 85%
6 AM 62° Mostly Cloudy 27% 8 mph N 82%
7 AM 63° Mostly Cloudy 15% 8 mph N 78%
8 AM 63° Mostly Cloudy 16% 8 mph N 75%
9 AM 66° Partly Cloudy 16% 9 mph N 71%
10 AM 69° Mostly Clear 16% 9 mph N 67%
11 AM 71° Mostly Clear 8% 9 mph NNE 63%
12 PM 73° Partly Cloudy 8% 8 mph NNE 61%
1 PM 74° Partly Cloudy 8% 7 mph NNE 59%
2 PM 75° Mostly Cloudy 3% 6 mph NNE 58%
3 PM 76° Partly Cloudy 3% 5 mph NNE 57%
4 PM 76° Partly Cloudy 3% 5 mph NE 57%
5 PM 78° Partly Cloudy 5% 4 mph NE 58%
6 PM 77° Mostly Clear 5% 4 mph NE 62%
7 PM 76° Mostly Clear 5% 4 mph NE 67%
8 PM 75° Clear 5% 4 mph ENE 71%
9 PM 71° Mostly Clear 13% 3 mph SE 75%
15-Day Forecast
Today
8/20
Fog
37%
62°
81°
Fri
8/21
Partly Cloudy
38%
62°
80°
Sat
8/22
Rain
78%
67°
76°
Sun
8/23
Overcast
69%
66°
84°
Mon
8/24
Clear
10%
64°
82°
Tue
8/25
Rain
61%
64°
83°
Wed
8/26
Drizzle
71%
66°
84°
Thu
8/27
Rain
82%
68°
84°
Fri
8/28
Rain
68%
67°
85°
Sat
8/29
Rain
68%
68°
86°
Sun
8/30
Rain
90%
68°
86°
Mon
8/31
Drizzle
60%
68°
83°
Tue
9/1
Drizzle
60%
67°
82°
Wed
9/2
Drizzle
60%
67°
82°
Thu
9/3
Drizzle
60%
67°
81°
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 Thu Aug 20, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE13 J/kg
MUCAPE149 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index5.2
Kinematics
0–6 km Shear48 kt
0–1 km Shear11 kt
Eff. Shear41 kt
0–1 km SRH58
0–3 km SRH477
Eff. SRH295
Storm Motion278° @ 25 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.9
K-Index35.2
Thermo & Levels
PWAT2.15 in
0–3 km LR3.6 °C/km
700–500 LR5.5 °C/km
Total Totals44.3
LCL994 hPa
LFC—
EL—
Freezing Lvl14,442 ft