Delaware County, Pennsylvania, United States

Last updated: 7:42 PM CDT · Refresh

23°C

Feels like 24°

Rain

▲ 29° / ▼ 21°

Wind

8 mph S

Humidity

93%

Dew Point

21°

Pressure

29.44 inHg

Visibility

10 mi

UV Index

0.0

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 71% around 8 PM. Atmospheric instability is elevated (CAPE up to 1067 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°

70%

9 PM

23°

57%

10 PM

23°

58%

11 PM

23°

63%

12 AM

23°

47%

1 AM

23°

42%

2 AM

22°

44%

3 AM

22°

48%

4 AM

22°

50%

5 AM

21°

47%

6 AM

22°

34%

7 AM

22°

34%

8 AM

23°

43%

9 AM

25°

34%

10 AM

26°

34%

11 AM

26°

31%

12 PM

26°

27%

1 PM

28°

25%

2 PM

28°

21%

3 PM

28°

23%

4 PM

29°

21%

5 PM

28°

21%

6 PM

27°

21%

7 PM

27°

22%

7-Day Forecast

Tonight

29° 21°

Rain, 72% chance.

Wed

30° 20°

Rain, 50% chance.

Thu

29° 18°

Mostly Clear.

Fri

29° 18°

Mostly Clear.

Sat

30° 18°

Partly Cloudy.

Sun

31° 18°

Rain, 62% chance.

Mon

32° 20°

Drizzle, 66% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 23° Rain 70% 8 mph S 93%

9 PM 23° Rain 57% 8 mph SSW 93%

10 PM 23° Heavy Rain 58% 8 mph SSW 93%

11 PM 23° Overcast 63% 9 mph SSW 94%

12 AM 23° Overcast 47% 9 mph SSW 92%

1 AM 23° Overcast 42% 9 mph SW 91%

2 AM 22° Mostly Cloudy 44% 9 mph SSW 91%

3 AM 22° Mostly Cloudy 48% 8 mph SSW 92%

4 AM 22° Mostly Cloudy 50% 8 mph SSW 93%

5 AM 21° Mostly Cloudy 47% 7 mph SSW 92%

6 AM 22° Partly Cloudy 34% 7 mph SW 89%

7 AM 22° Partly Cloudy 34% 8 mph SW 85%

8 AM 23° Partly Cloudy 43% 9 mph WSW 79%

9 AM 25° Partly Cloudy 34% 9 mph WSW 72%

10 AM 26° Mostly Clear 34% 10 mph W 66%

11 AM 26° Mostly Clear 31% 10 mph W 64%

12 PM 26° Mostly Clear 27% 10 mph W 64%

1 PM 28° Mostly Clear 25% 10 mph W 65%

2 PM 28° Mostly Clear 21% 10 mph W 62%

3 PM 28° Mostly Clear 23% 9 mph W 58%

4 PM 29° Mostly Clear 21% 9 mph W 55%

5 PM 28° Mostly Clear 21% 9 mph W 55%

6 PM 27° Mostly Clear 21% 8 mph W 57%

7 PM 27° Mostly Clear 22% 8 mph W 59%

15-Day Forecast

Today

7/21

Rain

72%

21°

29°

Wed

7/22

Rain

50%

20°

30°

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

62%

18°

31°

Mon

7/27

Drizzle

66%

20°

32°

Tue

7/28

Drizzle

66%

20°

31°

Wed

7/29

Drizzle

54%

19°

30°

Thu

7/30

Drizzle

54%

19°

31°

Fri

7/31

Drizzle

60%

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

90%

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

Today 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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE301 J/kg

MLCAPE944 J/kg

MUCAPE1395 J/kg

SBCIN-313 J/kg

MLCIN0 J/kg

Lifted Index-2.0

Kinematics

0–6 km Shear39 kt

0–1 km Shear29 kt

Eff. Shear40 kt

0–1 km SRH201

0–3 km SRH162

Eff. SRH41

Storm Motion226° @ 36 kt

0–1 km EHI0.4

Composite Parameters

Sig. Tornado0.5

STP (eff)0.0

Supercell1.2

K-Index32.2

Thermo & Levels

PWAT2.00 in

0–3 km LR4.3 °C/km

700–500 LR6.3 °C/km

Total Totals47.1

LCL976 hPa

LFC684 hPa

EL293 hPa

Freezing Lvl13,911 ft

Delaware County, Pennsylvania, United States

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