Union County, Pennsylvania, United States

Last updated: 4:49 AM CDT · Refresh

19°C

Feels like 22°

Rain

▲ 30° / ▼ 19°

Wind

3 mph SW

Humidity

97%

Dew Point

19°

Pressure

29.02 inHg

Visibility

10 mi

UV Index

0.0

Cloud Cover

82%

Sunrise

6:37 AM

Sunset

7:37 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently rain at 19°C. Precipitation is likely — peak probability 79% around 5 AM. Atmospheric instability is elevated (CAPE up to 2346 J/kg) — isolated convective development possible. Sunrise: 6:37AM · Sunset: 7:37PM.

43 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

19°

78%

6 AM

18°

58%

7 AM

18°

41%

8 AM

20°

32%

9 AM

21°

26%

10 AM

23°

26%

11 AM

24°

35%

12 PM

26°

35%

1 PM

29°

48%

2 PM

29°

52%

3 PM

28°

48%

4 PM

28°

40%

5 PM

28°

59%

6 PM

27°

69%

7 PM

26°

59%

8 PM

25°

59%

9 PM

23°

71%

10 PM

23°

70%

11 PM

22°

47%

12 AM

22°

33%

1 AM

22°

34%

2 AM

21°

34%

3 AM

21°

35%

4 AM

21°

30%

7-Day Forecast

Today

30° 19°

Partly Cloudy with a 78% chance of rain.

Fri

28° 18°

Partly Cloudy with a 49% chance of rain.

Sat

23° 14°

Mostly Cloudy with a 20% chance of rain.

Sun

23° 11°

Partly Cloudy.

Mon

24° 11°

Clear.

Tue

26° 11°

Drizzle, 43% chance.

Wed

26° 16°

Rain, 63% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 19° Rain 78% 3 mph SW 97%

6 AM 18° Mostly Cloudy 58% 4 mph SW 96%

7 AM 18° Partly Cloudy 41% 4 mph SW 96%

8 AM 20° Mostly Cloudy 32% 5 mph SW 91%

9 AM 21° Mostly Cloudy 26% 5 mph SW 86%

10 AM 23° Partly Cloudy 26% 6 mph SW 80%

11 AM 24° Partly Cloudy 35% 6 mph WSW 76%

12 PM 26° Mostly Clear 35% 7 mph W 70%

1 PM 29° Mostly Clear 48% 8 mph W 65%

2 PM 29° Partly Cloudy 52% 8 mph W 65%

3 PM 28° Partly Cloudy 48% 9 mph W 65%

4 PM 28° Mostly Cloudy 40% 9 mph WNW 65%

5 PM 28° Mostly Cloudy 59% 8 mph W 68%

6 PM 27° Mostly Cloudy 69% 6 mph W 72%

7 PM 26° Rain 59% 5 mph WSW 75%

8 PM 25° Rain 59% 5 mph WSW 79%

9 PM 23° Rain 71% 5 mph WSW 83%

10 PM 23° Rain 70% 5 mph W 87%

11 PM 22° Rain 47% 4 mph W 90%

12 AM 22° Drizzle 33% 4 mph W 92%

1 AM 22° Drizzle 34% 4 mph W 94%

2 AM 21° Partly Cloudy 34% 4 mph W 94%

3 AM 21° Partly Cloudy 35% 4 mph WSW 94%

4 AM 21° Partly Cloudy 30% 4 mph WSW 94%

15-Day Forecast

Today

9/3

Partly Cloudy

78%

19°

30°

Fri

9/4

Partly Cloudy

49%

18°

28°

Sat

9/5

Mostly Cloudy

20%

14°

23°

Sun

9/6

Partly Cloudy

11°

23°

Mon

9/7

Clear

11°

24°

Tue

9/8

Drizzle

43%

11°

26°

Wed

9/9

Rain

63%

16°

26°

Thu

9/10

Drizzle

43%

14°

32°

Fri

9/11

Clear

44%

10°

24°

Sat

9/12

Drizzle

51%

10°

23°

Sun

9/13

Drizzle

60%

14°

27°

Mon

9/14

Drizzle

60%

13°

26°

Tue

9/15

Clear

25%

12°

24°

Wed

9/16

Drizzle

60%

11°

24°

Thu

9/17

Drizzle

60%

12°

24°

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

43 AQI 7.8 µg/m³

O₃

Ground-level ozone

37 AQI 40 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 43 Good 37 43

Fri 36 Good 33 36

Sat 31 Good 31 27

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 Thu Sep 3, 08:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE3 J/kg

MLCAPE21 J/kg

MUCAPE229 J/kg

SBCIN-261 J/kg

MLCIN-205 J/kg

Lifted Index1.2

Kinematics

0–6 km Shear38 kt

0–1 km Shear10 kt

Eff. Shear29 kt

0–1 km SRH-10

0–3 km SRH-25

Eff. SRH48

Storm Motion312° @ 31 kt

0–1 km EHI-0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.2

K-Index33.6

Thermo & Levels

PWAT1.87 in

0–3 km LR4.1 °C/km

700–500 LR6.0 °C/km

Total Totals45.7

LCL971 hPa

LFC612 hPa

EL560 hPa

Freezing Lvl13,028 ft

Union County, Pennsylvania, United States

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