Lehigh County, Pennsylvania, United States

Last updated: 6:22 PM CDT · Refresh

23°C

Feels like 27°

Overcast

▲ 26° / ▼ 20°

Wind

6 mph SSW

Humidity

91%

Dew Point

22°

Pressure

29.10 inHg

Visibility

9 mi

UV Index

1.3

Cloud Cover

89%

Sunrise

5:49 AM

Sunset

8:27 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Lehigh County is currently overcast at 24°C. Precipitation is likely — peak probability 65% around 11 PM. Atmospheric instability is elevated (CAPE up to 1151 J/kg) — isolated convective development possible. Sunrise: 5:49AM · Sunset: 8:27PM.

93 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

23°

48%

8 PM

24°

52%

9 PM

23°

51%

10 PM

22°

47%

11 PM

22°

65%

12 AM

22°

50%

1 AM

21°

47%

2 AM

21°

47%

3 AM

21°

35%

4 AM

21°

40%

5 AM

20°

38%

6 AM

20°

38%

7 AM

21°

32%

8 AM

21°

10%

9 AM

23°

12%

10 AM

23°

12%

11 AM

24°

16%

12 PM

24°

16%

1 PM

26°

16%

2 PM

26°

16%

3 PM

26°

17%

4 PM

26°

17%

5 PM

26°

11%

6 PM

25°

12%

7-Day Forecast

Tonight

26° 20°

Overcast with a 48% chance of rain.

Wed

27° 16°

Mostly Clear with a 47% chance of rain.

Thu

28° 14°

Clear.

Fri

27° 16°

Mostly Clear.

Sat

28° 14°

Mostly Clear.

Sun

29° 17°

Rain, 71% chance.

Mon

29° 18°

Drizzle, 60% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 23° Overcast 48% 6 mph SSW 91%

8 PM 24° Overcast 52% 7 mph SSW 94%

9 PM 23° Overcast 51% 7 mph SSW 96%

10 PM 22° Drizzle 47% 8 mph SSW 96%

11 PM 22° Overcast 65% 9 mph SSW 96%

12 AM 22° Mostly Cloudy 50% 8 mph SSW 97%

1 AM 21° Mostly Cloudy 47% 7 mph SW 97%

2 AM 21° Mostly Cloudy 47% 8 mph SW 96%

3 AM 21° Partly Cloudy 35% 9 mph SW 95%

4 AM 21° Mostly Cloudy 40% 9 mph SW 95%

5 AM 20° Partly Cloudy 38% 9 mph SW 95%

6 AM 20° Partly Cloudy 38% 8 mph SW 94%

7 AM 21° Partly Cloudy 32% 9 mph WSW 93%

8 AM 21° Partly Cloudy 10% 9 mph WSW 88%

9 AM 23° Mostly Clear 12% 10 mph W 80%

10 AM 23° Mostly Clear 12% 10 mph W 72%

11 AM 24° Mostly Clear 16% 11 mph W 66%

12 PM 24° Mostly Clear 16% 11 mph W 63%

1 PM 26° Mostly Clear 16% 12 mph W 60%

2 PM 26° Mostly Clear 16% 12 mph W 58%

3 PM 26° Mostly Clear 17% 11 mph W 57%

4 PM 26° Mostly Clear 17% 11 mph W 58%

5 PM 26° Mostly Clear 11% 10 mph W 59%

6 PM 25° Mostly Clear 12% 10 mph W 61%

15-Day Forecast

Today

7/21

Overcast

48%

20°

26°

Wed

7/22

Mostly Clear

47%

16°

27°

Thu

7/23

Clear

14°

28°

Fri

7/24

Mostly Clear

16°

27°

Sat

7/25

Mostly Clear

17%

14°

28°

Sun

7/26

Rain

71%

17°

29°

Mon

7/27

Drizzle

60%

18°

29°

Tue

7/28

Drizzle

63%

17°

28°

Wed

7/29

Drizzle

68%

16°

27°

Thu

7/30

Drizzle

68%

16°

28°

Fri

7/31

Drizzle

46%

18°

28°

Sat

8/1

Drizzle

60%

18°

28°

Sun

8/2

Drizzle

60%

18°

29°

Mon

8/3

Drizzle

60%

19°

29°

Tue

8/4

Drizzle

60%

19°

30°

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

93 AQI 31.5 µg/m³

O₃

Ground-level ozone

41 AQI 45 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Wed 93 Moderate 41 93

Thu 58 Moderate 36 58

Fri 60 Moderate 44 60

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

SBCAPE825 J/kg

MLCAPE765 J/kg

MUCAPE1235 J/kg

SBCIN-36 J/kg

MLCIN0 J/kg

Lifted Index-4.5

Kinematics

0–6 km Shear42 kt

0–1 km Shear21 kt

Eff. Shear43 kt

0–1 km SRH87

0–3 km SRH168

Eff. SRH168

Storm Motion230° @ 38 kt

0–1 km EHI0.5

Composite Parameters

Sig. Tornado0.6

STP (eff)1.2

Supercell4.5

K-Index37.4

Thermo & Levels

PWAT1.93 in

0–3 km LR5.0 °C/km

700–500 LR6.4 °C/km

Total Totals51.5

LCL958 hPa

LFC814 hPa

EL207 hPa

Freezing Lvl14,285 ft

Lehigh County, Pennsylvania, United States

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