Delaware County, Pennsylvania, United States

Last updated: 2:35 AM CDT · Refresh

21°C

Feels like 24°

Overcast

▲ 32° / ▼ 22°

Wind

4 mph S

Humidity

94%

Dew Point

20°

Pressure

29.57 inHg

Visibility

8 mi

UV Index

0.0

Cloud Cover

92%

Sunrise

6:15 AM

Sunset

7:55 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Delaware County is currently overcast at 21°C. Precipitation is likely — peak probability 68% around 4 AM. Atmospheric instability is elevated (CAPE up to 1465 J/kg) — isolated convective development possible. Sunrise: 6:15AM · Sunset: 7:55PM.

40 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

21°

56%

4 AM

21°

67%

5 AM

21°

25%

6 AM

21°

18%

7 AM

22°

8 AM

22°

9 AM

24°

10 AM

26°

11 AM

27°

19%

12 PM

28°

23%

1 PM

29°

28%

2 PM

30°

33%

3 PM

30°

38%

4 PM

30°

41%

5 PM

31°

38%

6 PM

30°

27%

7 PM

29°

27%

8 PM

28°

24%

9 PM

27°

24%

10 PM

26°

21%

11 PM

25°

11%

12 AM

25°

11%

1 AM

24°

2 AM

24°

7-Day Forecast

Today

32° 22°

Partly Cloudy with a 56% chance of rain.

Tue

31° 22°

Partly Cloudy.

Wed

32° 21°

Partly Cloudy with a 25% chance of rain.

Thu

30° 21°

Partly Cloudy with a 74% chance of rain.

Fri

28° 21°

Rain, 82% chance.

Sat

28° 20°

Rain, 82% chance.

Sun

31° 19°

Drizzle, 82% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 21° Overcast 56% 4 mph S 94%

4 AM 21° Overcast 67% 4 mph SSW 97%

5 AM 21° Overcast 25% 3 mph SW 97%

6 AM 21° Mostly Cloudy 18% 4 mph W 96%

7 AM 22° Partly Cloudy 8% 5 mph W 94%

8 AM 22° Partly Cloudy 3% 6 mph WNW 90%

9 AM 24° Partly Cloudy 4% 6 mph WNW 84%

10 AM 26° Partly Cloudy 4% 6 mph WNW 79%

11 AM 27° Partly Cloudy 19% 6 mph WNW 74%

12 PM 28° Partly Cloudy 23% 6 mph WNW 69%

1 PM 29° Partly Cloudy 28% 7 mph WNW 65%

2 PM 30° Mostly Clear 33% 7 mph WNW 64%

3 PM 30° Mostly Clear 38% 7 mph WNW 65%

4 PM 30° Mostly Clear 41% 7 mph W 66%

5 PM 31° Partly Cloudy 38% 7 mph W 68%

6 PM 30° Mostly Cloudy 27% 6 mph W 71%

7 PM 29° Mostly Cloudy 27% 4 mph W 74%

8 PM 28° Mostly Cloudy 24% 4 mph W 77%

9 PM 27° Overcast 24% 4 mph WNW 80%

10 PM 26° Overcast 21% 4 mph WNW 83%

11 PM 25° Overcast 11% 4 mph WNW 85%

12 AM 25° Mostly Cloudy 11% 5 mph NW 85%

1 AM 24° Mostly Cloudy 3% 5 mph NW 86%

2 AM 24° Partly Cloudy 3% 5 mph NW 86%

15-Day Forecast

Today

8/17

Partly Cloudy

56%

22°

32°

Tue

8/18

Partly Cloudy

22°

31°

Wed

8/19

Partly Cloudy

25%

21°

32°

Thu

8/20

Partly Cloudy

74%

21°

30°

Fri

8/21

Rain

82%

21°

28°

Sat

8/22

Rain

82%

20°

28°

Sun

8/23

Drizzle

82%

19°

31°

Mon

8/24

Clear

43%

18°

29°

Tue

8/25

Drizzle

44%

16°

29°

Wed

8/26

Drizzle

60%

19°

28°

Thu

8/27

Drizzle

60%

18°

28°

Fri

8/28

Drizzle

60%

17°

27°

Sat

8/29

Drizzle

60%

18°

28°

Sun

8/30

Drizzle

60%

18°

29°

Mon

8/31

Drizzle

60%

18°

29°

Good

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

40 AQI 7.2 µg/m³

O₃

Ground-level ozone

30 AQI 32 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 40 Good 30 40

Tue 49 Good 44 49

Wed 57 Moderate 49 57

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 Mon Aug 17, 06:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE1 J/kg

MLCAPE13 J/kg

MUCAPE125 J/kg

SBCIN-0 J/kg

MLCIN0 J/kg

Lifted Index2.0

Kinematics

0–6 km Shear17 kt

0–1 km Shear25 kt

Eff. Shear2 kt

0–1 km SRH138

0–3 km SRH138

Eff. SRH8

Storm Motion300° @ 21 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index36.5

Thermo & Levels

PWAT2.30 in

0–3 km LR4.0 °C/km

700–500 LR5.3 °C/km

Total Totals43.9

LCL988 hPa

LFC1001 hPa

EL983 hPa

Freezing Lvl15,266 ft

Delaware County, Pennsylvania, United States

Alerts