Frost Advisory — Middlesex, NJ, Western Monmouth, NJ, Mercer, NJ, Salem, NJ, Gloucester, NJ, Camden, NJ, Northwestern Burlington, NJ, Ocean, NJ, Cumberland, NJ, Atlantic, NJ, Southeastern Burlington, NJ, Delaware, PA, Philadelphia, PA, Eastern Chester, PA, Eastern Montgomery, PA, Lower Bucks, PA 8:00 AM

Delaware County, Pennsylvania, United States

Last updated: 3:19 AM CDT  ·  Refresh
40°F
Feels like 38°
Partly Cloudy
▲ 64°  /  ▼ 38°
Wind
3 mph NW
Humidity
75%
Dew Point
34°
Pressure
30.21 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
41%
Sunrise
7:21 AM
Sunset
6:09 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Delaware County is currently partly cloudy at 40°F. Dry conditions are expected through the next 24 hours. Sunrise: 7:21AM · Sunset: 6:09PM.

Alerts

Frost Advisory
Middlesex, NJ, Western Monmouth, NJ, Mercer, NJ, Salem, NJ, Gloucester, NJ, Camden, NJ, Northwestern Burlington, NJ, Ocean, NJ, Cumberland, NJ, Atlantic, NJ, Southeastern Burlington, NJ, Delaware, PA, Philadelphia, PA, Eastern Chester, PA, Eastern Montgomery, PA, Lower Bucks, PA
Expires 8:00 AM
33 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
40°
17%
5 AM
39°
5%
6 AM
39°
7%
7 AM
39°
3%
8 AM
40°
3%
9 AM
46°
3%
10 AM
51°
3%
11 AM
55°
3%
12 PM
57°
3%
1 PM
62°
3%
2 PM
64°
3%
3 PM
64°
3%
4 PM
63°
3%
5 PM
60°
3%
6 PM
57°
3%
7 PM
54°
3%
8 PM
53°
3%
9 PM
51°
3%
10 PM
51°
3%
11 PM
48°
3%
12 AM
48°
3%
1 AM
48°
3%
2 AM
47°
3%
3 AM
46°
6%
7-Day Forecast
Today
64° 38°
Clear.
Sun
68° 43°
Clear.
Mon
71° 43°
Fog.
Tue
65° 46°
Mostly Cloudy.
Wed
66° 44°
Clear.
Thu
69° 46°
Clear.
Fri
77° 50°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 40° Partly Cloudy 17% 3 mph NW 75%
5 AM 39° Partly Cloudy 5% 4 mph NNW 71%
6 AM 39° Partly Cloudy 7% 4 mph NNW 72%
7 AM 39° Mostly Clear 3% 4 mph NNW 72%
8 AM 40° Mostly Clear 3% 4 mph NNW 71%
9 AM 46° Mostly Clear 3% 4 mph NNW 65%
10 AM 51° Clear 3% 3 mph NNW 58%
11 AM 55° Clear 3% 3 mph NNW 51%
12 PM 57° Clear 3% 2 mph NNW 45%
1 PM 62° Clear 3% 1 mph WNW 39%
2 PM 64° Clear 3% 1 mph S 36%
3 PM 64° Clear 3% 2 mph S 36%
4 PM 63° Clear 3% 2 mph S 37%
5 PM 60° Clear 3% 2 mph S 39%
6 PM 57° Clear 3% 3 mph SSW 45%
7 PM 54° Clear 3% 3 mph SW 51%
8 PM 53° Clear 3% 3 mph SW 55%
9 PM 51° Clear 3% 3 mph WSW 58%
10 PM 51° Clear 3% 3 mph WSW 60%
11 PM 48° Clear 3% 3 mph WSW 62%
12 AM 48° Clear 3% 3 mph WSW 64%
1 AM 48° Clear 3% 3 mph W 66%
2 AM 47° Clear 3% 3 mph W 68%
3 AM 46° Mostly Clear 6% 3 mph W 70%
15-Day Forecast
Today
10/24
Clear
17%
38°
64°
Sun
10/25
Clear
6%
43°
68°
Mon
10/26
Fog
17%
43°
71°
Tue
10/27
Mostly Cloudy
3%
46°
65°
Wed
10/28
Clear
3%
44°
66°
Thu
10/29
Clear
3%
46°
69°
Fri
10/30
Clear
3%
50°
77°
Sat
10/31
Clear
18%
51°
73°
Sun
11/1
Drizzle
44%
50°
71°
Mon
11/2
Rain
77%
48°
70°
Tue
11/3
Drizzle
60%
51°
69°
Wed
11/4
Drizzle
60%
47°
64°
Thu
11/5
Drizzle
60%
46°
63°
Fri
11/6
Drizzle
60%
47°
66°
Sat
11/7
Drizzle
60%
48°
67°
33
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
33 AQI 6.1 µg/m³
O3
Ground-level ozone
24 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 33 Good 24 33
Sun 56 Moderate 31 56
Mon 60 Moderate 33 60
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 Sat Oct 24, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE23 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index20.9
Kinematics
0–6 km Shear11 kt
0–1 km Shear8 kt
Eff. Shear—
0–1 km SRH-35
0–3 km SRH-21
Eff. SRH—
Storm Motion36° @ 18 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-49.6
Thermo & Levels
PWAT0.26 in
0–3 km LR1.5 °C/km
700–500 LR6.7 °C/km
Total Totals9.1
LCL971 hPa
LFC—
EL—
Freezing Lvl9,892 ft