Delaware County, Pennsylvania, United States

Last updated: 6:19 PM CDT · Refresh

23°C

Feels like 25°

Rain

▲ 29° / ▼ 21°

Wind

8 mph S

Humidity

92%

Dew Point

22°

Pressure

29.44 inHg

Visibility

3 mi

UV Index

1.1

Cloud Cover

93%

Sunrise

5:50 AM

Sunset

8:25 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Delaware County is currently rain at 23°C. Precipitation is likely — peak probability 83% around 7 PM. Atmospheric instability is elevated (CAPE up to 1127 J/kg) — isolated convective development possible. Sunrise: 5:50AM · Sunset: 8:25PM.

74 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

23°

83%

8 PM

24°

72%

9 PM

24°

72%

10 PM

24°

66%

11 PM

24°

54%

12 AM

24°

55%

1 AM

23°

51%

2 AM

23°

51%

3 AM

23°

52%

4 AM

22°

52%

5 AM

21°

53%

6 AM

22°

64%

7 AM

22°

43%

8 AM

23°

60%

9 AM

24°

46%

10 AM

26°

40%

11 AM

26°

37%

12 PM

26°

37%

1 PM

28°

31%

2 PM

28°

29%

3 PM

28°

29%

4 PM

28°

27%

5 PM

28°

27%

6 PM

28°

27%

7-Day Forecast

Tonight

29° 21°

Rain, 83% chance.

Wed

31° 21°

Rain, 52% chance.

Thu

29° 18°

Mostly Clear.

Fri

29° 18°

Mostly Clear.

Sat

30° 18°

Partly Cloudy.

Sun

31° 19°

Rain, 71% chance.

Mon

31° 20°

Drizzle, 63% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 23° Rain 83% 8 mph S 92%

8 PM 24° Rain 72% 10 mph S 94%

9 PM 24° Heavy Rain 72% 8 mph SSW 93%

10 PM 24° Overcast 66% 6 mph SSW 93%

11 PM 24° Overcast 54% 8 mph SSW 93%

12 AM 24° Overcast 55% 9 mph SW 92%

1 AM 23° Overcast 51% 10 mph SW 90%

2 AM 23° Mostly Cloudy 51% 11 mph SW 90%

3 AM 23° Mostly Cloudy 52% 10 mph SW 91%

4 AM 22° Mostly Cloudy 52% 9 mph SSW 93%

5 AM 21° Mostly Cloudy 53% 9 mph SSW 94%

6 AM 22° Partly Cloudy 64% 9 mph SSW 91%

7 AM 22° Rain 43% 8 mph SW 87%

8 AM 23° Rain 60% 8 mph WSW 83%

9 AM 24° Mostly Clear 46% 9 mph WSW 77%

10 AM 26° Mostly Clear 40% 10 mph W 70%

11 AM 26° Mostly Clear 37% 10 mph W 65%

12 PM 26° Mostly Clear 37% 10 mph W 66%

1 PM 28° Mostly Clear 31% 10 mph W 67%

2 PM 28° Mostly Clear 29% 9 mph W 66%

3 PM 28° Mostly Clear 29% 9 mph W 62%

4 PM 28° Mostly Clear 27% 9 mph W 58%

5 PM 28° Mostly Clear 27% 9 mph W 56%

6 PM 28° Mostly Clear 27% 8 mph W 58%

15-Day Forecast

Today

7/21

Rain

83%

21°

29°

Wed

7/22

Rain

52%

21°

31°

Thu

7/23

Mostly Clear

18°

29°

Fri

7/24

Mostly Clear

18°

29°

Sat

7/25

Partly Cloudy

18°

30°

Sun

7/26

Rain

71%

19°

31°

Mon

7/27

Drizzle

63%

20°

31°

Tue

7/28

Drizzle

63%

19°

30°

Wed

7/29

Drizzle

68%

19°

29°

Thu

7/30

Drizzle

68%

19°

31°

Fri

7/31

Drizzle

46%

20°

30°

Sat

8/1

Drizzle

60%

20°

30°

Sun

8/2

Drizzle

60%

20°

31°

Mon

8/3

Drizzle

60%

21°

31°

Tue

8/4

Drizzle

60%

21°

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

74 AQI 21.5 µg/m³

O₃

Ground-level ozone

37 AQI 41 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Wed 74 Moderate 37 74

Thu 54 Moderate 43 54

Fri 54 Moderate 49 54

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, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE503 J/kg

MLCAPE959 J/kg

MUCAPE1638 J/kg

SBCIN-137 J/kg

MLCIN0 J/kg

Lifted Index-3.5

Kinematics

0–6 km Shear38 kt

0–1 km Shear23 kt

Eff. Shear40 kt

0–1 km SRH101

0–3 km SRH123

Eff. SRH123

Storm Motion227° @ 35 kt

0–1 km EHI0.3

Composite Parameters

Sig. Tornado0.4

STP (eff)0.2

Supercell4.1

K-Index37.3

Thermo & Levels

PWAT2.16 in

0–3 km LR4.7 °C/km

700–500 LR6.4 °C/km

Total Totals51.3

LCL974 hPa

LFC709 hPa

EL269 hPa

Freezing Lvl13,760 ft

Delaware County, Pennsylvania, United States

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