Philadelphia, Pennsylvania

Last updated: 4:26 PM CDT · Refresh

28°C

Feels like 31°

Overcast

▲ 29° / ▼ 22°

Wind

10 mph SW

Humidity

82%

Dew Point

24°

Pressure

29.64 inHg

Visibility

10 mi

UV Index

3.2

Cloud Cover

87%

Sunrise

5:49 AM

Sunset

8:24 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Philadelphia is currently overcast at 28°C. Precipitation is likely — peak probability 90% around 6 PM. Atmospheric instability is elevated (CAPE up to 1930 J/kg) — isolated convective development possible. Sunrise: 5:49AM · Sunset: 8:24PM.

77 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

28°

70%

6 PM

27°

90%

7 PM

26°

63%

8 PM

26°

53%

9 PM

24°

54%

10 PM

24°

56%

11 PM

24°

53%

12 AM

24°

53%

1 AM

23°

60%

2 AM

23°

49%

3 AM

23°

49%

4 AM

23°

59%

5 AM

22°

45%

6 AM

22°

46%

7 AM

23°

51%

8 AM

23°

55%

9 AM

24°

51%

10 AM

26°

45%

11 AM

26°

31%

12 PM

27°

31%

1 PM

28°

33%

2 PM

28°

33%

3 PM

28°

33%

4 PM

28°

22%

7-Day Forecast

Today

29° 22°

Overcast with a 70% chance of rain.

Wed

31° 21°

Rain, 55% chance.

Thu

29° 19°

Mostly Clear.

Fri

29° 18°

Partly Cloudy.

Sat

31° 18°

Clear.

Sun

31° 19°

Rain, 81% chance.

Mon

32° 21°

Drizzle, 60% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 28° Overcast 70% 10 mph SW 82%

6 PM 27° Overcast 90% 8 mph SSW 90%

7 PM 26° Overcast 63% 9 mph S 92%

8 PM 26° Overcast 53% 9 mph S 93%

9 PM 24° Overcast 54% 7 mph SSW 92%

10 PM 24° Rain 56% 7 mph SSW 92%

11 PM 24° Rain 53% 7 mph SSW 92%

12 AM 24° Rain 53% 8 mph SSW 91%

1 AM 23° Overcast 60% 9 mph SSW 90%

2 AM 23° Overcast 49% 9 mph SSW 91%

3 AM 23° Mostly Cloudy 49% 9 mph SSW 91%

4 AM 23° Mostly Cloudy 59% 9 mph SSW 92%

5 AM 22° Drizzle 45% 9 mph SSW 92%

6 AM 22° Drizzle 46% 9 mph SSW 89%

7 AM 23° Rain 51% 10 mph SW 86%

8 AM 23° Rain 55% 9 mph SW 83%

9 AM 24° Mostly Clear 51% 9 mph WSW 78%

10 AM 26° Mostly Clear 45% 10 mph WSW 72%

11 AM 26° Mostly Clear 31% 10 mph W 68%

12 PM 27° Partly Cloudy 31% 10 mph W 68%

1 PM 28° Partly Cloudy 33% 10 mph W 68%

2 PM 28° Partly Cloudy 33% 10 mph W 66%

3 PM 28° Partly Cloudy 33% 10 mph W 63%

4 PM 28° Mostly Clear 22% 10 mph W 59%

15-Day Forecast

Today

7/21

Overcast

70%

22°

29°

Wed

7/22

Rain

55%

21°

31°

Thu

7/23

Mostly Clear

13%

19°

29°

Fri

7/24

Partly Cloudy

17%

18°

29°

Sat

7/25

Clear

19%

18°

31°

Sun

7/26

Rain

81%

19°

31°

Mon

7/27

Drizzle

60%

21°

32°

Tue

7/28

Drizzle

60%

21°

31°

Wed

7/29

Drizzle

60%

20°

30°

Thu

7/30

Drizzle

60%

21°

33°

Fri

7/31

Drizzle

60%

22°

31°

Sat

8/1

Drizzle

60%

22°

31°

Sun

8/2

Drizzle

60%

21°

32°

Mon

8/3

Drizzle

60%

22°

31°

Tue

8/4

Drizzle

60%

22°

32°

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

PM_2.5

Fine particulate matter

Dominant

77 AQI 22.8 µg/m³

O₃

Ground-level ozone

39 AQI 42 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Wed 77 Moderate 39 77

Thu 55 Moderate 44 55

Fri 52 Moderate 49 52

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Tue Jul 21, 20:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE2326 J/kg

MLCAPE1836 J/kg

MUCAPE2365 J/kg

SBCIN0 J/kg

MLCIN0 J/kg

Lifted Index-5.9

Kinematics

0–6 km Shear36 kt

0–1 km Shear13 kt

Eff. Shear37 kt

0–1 km SRH-30

0–3 km SRH-71

Eff. SRH-71

Storm Motion209° @ 33 kt

0–1 km EHI-0.4

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index30.8

Thermo & Levels

PWAT2.13 in

0–3 km LR6.3 °C/km

700–500 LR5.6 °C/km

Total Totals46.9

LCL947 hPa

LFC1004 hPa

EL171 hPa

Freezing Lvl14,278 ft

Philadelphia, Pennsylvania

Alerts