Excessive Heat Watch 7:00 PM Excessive Heat Warning — Delaware, PA, Philadelphia, PA, Eastern Chester, PA, Eastern Montgomery, PA, Lower Bucks, PA, Kent, MD, Queen Anne's, MD, Talbot, MD, Caroline, MD, Berks, PA, Lehigh, PA, Northampton, PA, Western Chester, PA, Western Montgomery, PA, Upper Bucks, PA, Somerset, NJ, Middlesex, NJ, Western Monmouth, NJ, Eastern Monmouth, NJ, Ocean, NJ, Southeastern Burlington, NJ, Cumberland, NJ, Atlantic, NJ, Cape May, NJ, Carbon, PA, Monroe, PA, Atlantic Coastal Cape May, NJ, Coastal Atlantic, NJ, Coastal Ocean, NJ 7:00 PM

Delaware County, Pennsylvania, United States

Last updated: 9:24 PM CDT  ·  Refresh
31°C
Feels like 34°
Clear
▲ 38°  /  ▼ 26°
Wind
6 mph WSW
Humidity
57%
Dew Point
23°
Pressure
29.70 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
5:37 AM
Sunset
8:33 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Delaware County is currently clear at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2692 J/kg) — isolated convective development possible. Sunrise: 5:37AM · Sunset: 8:33PM.

Alerts

Excessive Heat Watch
Expires 7:00 PM
Excessive Heat Warning
Delaware, PA, Philadelphia, PA, Eastern Chester, PA, Eastern Montgomery, PA, Lower Bucks, PA, Kent, MD, Queen Anne's, MD, Talbot, MD, Caroline, MD, Berks, PA, Lehigh, PA, Northampton, PA, Western Chester, PA, Western Montgomery, PA, Upper Bucks, PA, Somerset, NJ, Middlesex, NJ, Western Monmouth, NJ, Eastern Monmouth, NJ, Ocean, NJ, Southeastern Burlington, NJ, Cumberland, NJ, Atlantic, NJ, Cape May, NJ, Carbon, PA, Monroe, PA, Atlantic Coastal Cape May, NJ, Coastal Atlantic, NJ, Coastal Ocean, NJ
Expires 7:00 PM
90 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
3%
11 PM
31°
21%
12 AM
31°
21%
1 AM
29°
21%
2 AM
29°
3%
3 AM
28°
3%
4 AM
28°
3%
5 AM
26°
3%
6 AM
26°
3%
7 AM
28°
3%
8 AM
30°
3%
9 AM
32°
8%
10 AM
33°
8%
11 AM
34°
17%
12 PM
35°
17%
1 PM
37°
17%
2 PM
38°
27%
3 PM
38°
31%
4 PM
38°
35%
5 PM
38°
36%
6 PM
37°
44%
7 PM
36°
41%
8 PM
34°
35%
9 PM
33°
35%
7-Day Forecast
Tonight
38° 26°
Clear.
Fri
38° 26°
Clear with a 35% chance of rain.
Sat
38° 26°
Mostly Clear with a 75% chance of rain.
Sun
33° 23°
Partly Cloudy with a 82% chance of rain.
Mon
31° 22°
Heavy Rain, 90% chance.
Tue
31° 21°
Drizzle, 51% chance.
Wed
30° 21°
Rain, 29% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Clear 3% 6 mph WSW 57%
11 PM 31° Clear 21% 6 mph WSW 58%
12 AM 31° Clear 21% 6 mph WSW 61%
1 AM 29° Clear 21% 5 mph W 63%
2 AM 29° Clear 3% 5 mph W 65%
3 AM 28° Clear 3% 5 mph WNW 67%
4 AM 28° Clear 3% 5 mph NW 70%
5 AM 26° Clear 3% 5 mph NW 72%
6 AM 26° Clear 3% 4 mph NW 70%
7 AM 28° Clear 3% 4 mph NW 66%
8 AM 30° Clear 3% 5 mph NW 60%
9 AM 32° Clear 8% 6 mph WNW 54%
10 AM 33° Clear 8% 6 mph WNW 49%
11 AM 34° Clear 17% 6 mph WNW 45%
12 PM 35° Clear 17% 8 mph W 42%
1 PM 37° Clear 17% 9 mph W 40%
2 PM 38° Clear 27% 10 mph W 38%
3 PM 38° Clear 31% 10 mph W 37%
4 PM 38° Clear 35% 11 mph W 36%
5 PM 38° Clear 36% 10 mph W 38%
6 PM 37° Mostly Clear 44% 9 mph W 43%
7 PM 36° Partly Cloudy 41% 8 mph W 48%
8 PM 34° Partly Cloudy 35% 7 mph W 52%
9 PM 33° Partly Cloudy 35% 7 mph W 54%
15-Day Forecast
Today
7/2
Clear
3%
26°
38°
Fri
7/3
Clear
35%
26°
38°
Sat
7/4
Mostly Clear
75%
26°
38°
Sun
7/5
Partly Cloudy
82%
23°
33°
Mon
7/6
Heavy Rain
90%
22°
31°
Tue
7/7
Drizzle
51%
21°
31°
Wed
7/8
Rain
29%
21°
30°
Thu
7/9
Rain
27%
21°
32°
Fri
7/10
Drizzle
69%
21°
33°
Sat
7/11
Drizzle
44%
22°
32°
Sun
7/12
Drizzle
60%
21°
36°
Mon
7/13
Drizzle
60%
21°
35°
Tue
7/14
Drizzle
60%
20°
31°
Wed
7/15
Drizzle
60%
19°
31°
Thu
7/16
Drizzle
60%
21°
31°
90
Moderate
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
64 AQI 16.2 µg/m³
O3
Ground-level ozone
Dominant
90 AQI 68 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 90 Moderate 90 64
Sat 64 Moderate 64 59
Sun 74 Moderate 74 55
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 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Jul 3, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2381 J/kg
MLCAPE2620 J/kg
MUCAPE3645 J/kg
SBCIN-326 J/kg
MLCIN0 J/kg
Lifted Index-5.7
Kinematics
0–6 km Shear18 kt
0–1 km Shear13 kt
Eff. Shear15 kt
0–1 km SRH10
0–3 km SRH-7
Eff. SRH-21
Storm Motion256° @ 23 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.0
K-Index26.3
Thermo & Levels
PWAT1.64 in
0–3 km LR5.6 °C/km
700–500 LR6.8 °C/km
Total Totals50.1
LCL898 hPa
LFC700 hPa
EL149 hPa
Freezing Lvl14,925 ft