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Philadelphia, Pennsylvania

Last updated: 2:36 PM CDT  ·  Refresh
31°C
Feels like 32°
Partly Cloudy
▲ 33°  /  ▼ 22°
Wind
8 mph NW
Humidity
45%
Dew Point
19°
Pressure
29.79 inHg
Visibility
10 mi
UV Index
7.8
Cloud Cover
35%
Sunrise
6:10 AM
Sunset
7:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Philadelphia is currently partly cloudy at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 564 J/kg) — isolated convective development possible. Sunrise: 6:10AM · Sunset: 7:59PM.

65 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
3%
4 PM
32°
16%
5 PM
33°
17%
6 PM
32°
20%
7 PM
31°
31%
8 PM
29°
37%
9 PM
28°
43%
10 PM
27°
30%
11 PM
26°
22%
12 AM
26°
17%
1 AM
24°
6%
2 AM
24°
7%
3 AM
24°
9%
4 AM
23°
9%
5 AM
22°
10%
6 AM
22°
5%
7 AM
23°
5%
8 AM
23°
5%
9 AM
26°
5%
10 AM
27°
5%
11 AM
28°
5%
12 PM
28°
5%
1 PM
29°
5%
2 PM
29°
6%
7-Day Forecast
Today
33° 22°
Mostly Cloudy with a 43% chance of rain.
Fri
32° 22°
Mostly Cloudy.
Sat
30° 20°
Partly Cloudy with a 49% chance of rain.
Sun
28° 20°
Rain, 90% chance.
Mon
32° 21°
Clear with a 27% chance of rain.
Tue
33° 19°
Clear with a 25% chance of rain.
Wed
33° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 3% 8 mph NW 45%
4 PM 32° Mostly Cloudy 16% 8 mph WNW 44%
5 PM 33° Overcast 17% 8 mph WNW 45%
6 PM 32° Overcast 20% 6 mph WNW 48%
7 PM 31° Overcast 31% 5 mph WNW 52%
8 PM 29° Mostly Cloudy 37% 4 mph WNW 58%
9 PM 28° Mostly Cloudy 43% 4 mph NW 64%
10 PM 27° Mostly Cloudy 30% 4 mph NW 68%
11 PM 26° Mostly Cloudy 22% 4 mph NW 71%
12 AM 26° Mostly Cloudy 17% 4 mph NW 73%
1 AM 24° Mostly Cloudy 6% 3 mph NNW 75%
2 AM 24° Mostly Cloudy 7% 3 mph N 76%
3 AM 24° Mostly Cloudy 9% 3 mph N 75%
4 AM 23° Mostly Cloudy 9% 3 mph N 75%
5 AM 22° Mostly Cloudy 10% 4 mph N 74%
6 AM 22° Mostly Cloudy 5% 4 mph N 72%
7 AM 23° Mostly Cloudy 5% 4 mph NNE 68%
8 AM 23° Mostly Cloudy 5% 4 mph NNE 62%
9 AM 26° Mostly Cloudy 5% 4 mph NNE 53%
10 AM 27° Partly Cloudy 5% 4 mph NNE 46%
11 AM 28° Partly Cloudy 5% 4 mph NNE 43%
12 PM 28° Partly Cloudy 5% 3 mph N 41%
1 PM 29° Partly Cloudy 5% 4 mph NNW 40%
2 PM 29° Partly Cloudy 6% 5 mph NW 41%
15-Day Forecast
Today
8/13
Mostly Cloudy
43%
22°
33°
Fri
8/14
Mostly Cloudy
17%
22°
32°
Sat
8/15
Partly Cloudy
49%
20°
30°
Sun
8/16
Rain
90%
20°
28°
Mon
8/17
Clear
27%
21°
32°
Tue
8/18
Clear
25%
19°
33°
Wed
8/19
Clear
19%
21°
33°
Thu
8/20
Clear
60%
22°
33°
Fri
8/21
Drizzle
60%
21°
35°
Sat
8/22
Drizzle
60%
21°
37°
Sun
8/23
Drizzle
60%
21°
31°
Mon
8/24
Drizzle
60%
21°
31°
Tue
8/25
Drizzle
60%
21°
31°
Wed
8/26
Drizzle
60%
21°
30°
Thu
8/27
Drizzle
60%
20°
31°
65
Moderate
U.S. Air Quality Index · Dominant: PM2.5
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
Dominant
65 AQI 16.7 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 65 Moderate 46 65
Sat 57 Moderate 46 57
Sun 40 Good 34 40
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 Thu Aug 13, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 100 110 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE906 J/kg
MLCAPE715 J/kg
MUCAPE906 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.0
Kinematics
0–6 km Shear47 kt
0–1 km Shear6 kt
Eff. Shear40 kt
0–1 km SRH8
0–3 km SRH47
Eff. SRH47
Storm Motion321° @ 30 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.1
Supercell0.9
K-Index25.5
Thermo & Levels
PWAT1.54 in
0–3 km LR8.0 °C/km
700–500 LR5.1 °C/km
Total Totals43.6
LCL842 hPa
LFC1009 hPa
EL238 hPa
Freezing Lvl14,085 ft