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

Philadelphia, Pennsylvania

Last updated: 9:24 PM CDT  ·  Refresh
32°C
Feels like 36°
Clear
▲ 38°  /  ▼ 26°
Wind
6 mph SW
Humidity
53%
Dew Point
23°
Pressure
29.88 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
4%
Sunrise
5:36 AM
Sunset
8:33 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Philadelphia is currently clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2533 J/kg) — isolated convective development possible. Sunrise: 5:36AM · 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
93 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
3%
11 PM
32°
21%
12 AM
32°
21%
1 AM
31°
21%
2 AM
30°
3%
3 AM
29°
3%
4 AM
29°
3%
5 AM
26°
3%
6 AM
27°
3%
7 AM
28°
3%
8 AM
31°
3%
9 AM
32°
3%
10 AM
34°
3%
11 AM
35°
3%
12 PM
36°
3%
1 PM
38°
3%
2 PM
39°
18%
3 PM
39°
35%
4 PM
39°
35%
5 PM
39°
45%
6 PM
38°
46%
7 PM
36°
46%
8 PM
35°
36%
9 PM
34°
37%
7-Day Forecast
Tonight
38° 26°
Clear.
Fri
39° 26°
Clear with a 41% chance of rain.
Sat
38° 26°
Mostly Clear with a 75% chance of rain.
Sun
33° 23°
Partly Cloudy with a 86% chance of rain.
Mon
31° 22°
Heavy Rain, 90% chance.
Tue
31° 22°
Clear with a 51% chance of rain.
Wed
30° 21°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Clear 3% 6 mph SW 53%
11 PM 32° Clear 21% 5 mph SW 56%
12 AM 32° Clear 21% 5 mph WSW 58%
1 AM 31° Clear 21% 5 mph WSW 60%
2 AM 30° Clear 3% 4 mph W 62%
3 AM 29° Clear 3% 4 mph WNW 64%
4 AM 29° Clear 3% 4 mph NW 67%
5 AM 26° Clear 3% 4 mph NW 70%
6 AM 27° Clear 3% 4 mph WNW 68%
7 AM 28° Clear 3% 4 mph WNW 65%
8 AM 31° Clear 3% 5 mph WNW 59%
9 AM 32° Clear 3% 6 mph WNW 52%
10 AM 34° Clear 3% 6 mph WNW 47%
11 AM 35° Clear 3% 7 mph WNW 43%
12 PM 36° Clear 3% 8 mph W 40%
1 PM 38° Clear 3% 9 mph W 37%
2 PM 39° Clear 18% 10 mph W 35%
3 PM 39° Clear 35% 11 mph W 35%
4 PM 39° Clear 35% 11 mph W 35%
5 PM 39° Clear 45% 10 mph W 37%
6 PM 38° Mostly Clear 46% 9 mph W 42%
7 PM 36° Mostly Clear 46% 8 mph W 48%
8 PM 35° Partly Cloudy 36% 8 mph W 52%
9 PM 34° Partly Cloudy 37% 8 mph W 54%
15-Day Forecast
Today
7/2
Clear
3%
26°
38°
Fri
7/3
Clear
41%
26°
39°
Sat
7/4
Mostly Clear
75%
26°
38°
Sun
7/5
Partly Cloudy
86%
23°
33°
Mon
7/6
Heavy Rain
90%
22°
31°
Tue
7/7
Clear
51%
22°
31°
Wed
7/8
Rain
28%
21°
30°
Thu
7/9
Clear
17%
21°
32°
Fri
7/10
Rain
69%
21°
33°
Sat
7/11
Drizzle
44%
23°
33°
Sun
7/12
Drizzle
60%
22°
36°
Mon
7/13
Drizzle
60%
22°
36°
Tue
7/14
Drizzle
60%
22°
32°
Wed
7/15
Drizzle
60%
21°
32°
Thu
7/16
Drizzle
60%
22°
32°
93
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
67 AQI 17.5 µg/m³
O3
Ground-level ozone
Dominant
93 AQI 68 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 93 Moderate 93 67
Sat 64 Moderate 64 62
Sun 71 Moderate 71 58
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
SBCAPE2266 J/kg
MLCAPE2655 J/kg
MUCAPE3425 J/kg
SBCIN-321 J/kg
MLCIN0 J/kg
Lifted Index-5.5
Kinematics
0–6 km Shear19 kt
0–1 km Shear14 kt
Eff. Shear15 kt
0–1 km SRH18
0–3 km SRH1
Eff. SRH-23
Storm Motion259° @ 24 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.0
K-Index26.1
Thermo & Levels
PWAT1.65 in
0–3 km LR5.9 °C/km
700–500 LR6.8 °C/km
Total Totals49.5
LCL884 hPa
LFC699 hPa
EL151 hPa
Freezing Lvl15,138 ft