Montgomery County, Pennsylvania, United States

Last updated: 1:16 AM CDT · Refresh

21°C

Feels like 22°

Rain

▲ 31° / ▼ 20°

Wind

5 mph SE

Humidity

94%

Dew Point

20°

Pressure

29.57 inHg

Visibility

9 mi

UV Index

0.0

Cloud Cover

93%

Sunrise

6:14 AM

Sunset

7:55 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Montgomery County is currently rain at 20°C. Precipitation is likely — peak probability 78% around 2 AM. Atmospheric instability is elevated (CAPE up to 1256 J/kg) — isolated convective development possible. Sunrise: 6:14AM · Sunset: 7:55PM.

42 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

21°

77%

3 AM

20°

67%

4 AM

21°

47%

5 AM

19°

51%

6 AM

20°

30%

7 AM

20°

22%

8 AM

21°

17%

9 AM

22°

25%

10 AM

23°

24%

11 AM

25°

33%

12 PM

26°

33%

1 PM

28°

33%

2 PM

29°

58%

3 PM

29°

52%

4 PM

30°

59%

5 PM

31°

58%

6 PM

29°

58%

7 PM

28°

48%

8 PM

27°

37%

9 PM

24°

33%

10 PM

24°

18%

11 PM

23°

18%

12 AM

23°

18%

1 AM

23°

7-Day Forecast

Today

31° 20°

Partly Cloudy with a 77% chance of rain.

Tue

31° 20°

Mostly Clear.

Wed

32° 18°

Mostly Clear.

Thu

30° 19°

Mostly Cloudy with a 60% chance of rain.

Fri

28° 19°

Rain, 64% chance.

Sat

28° 18°

Rain, 70% chance.

Sun

30° 19°

Rain, 63% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 21° Rain 77% 5 mph SE 94%

3 AM 20° Overcast 67% 4 mph SE 97%

4 AM 21° Overcast 47% 4 mph SSE 97%

5 AM 19° Overcast 51% 3 mph S 97%

6 AM 20° Mostly Cloudy 30% 2 mph W 96%

7 AM 20° Mostly Cloudy 22% 4 mph WNW 96%

8 AM 21° Partly Cloudy 17% 5 mph WNW 94%

9 AM 22° Partly Cloudy 25% 5 mph WNW 89%

10 AM 23° Partly Cloudy 24% 6 mph WNW 84%

11 AM 25° Mostly Cloudy 33% 6 mph WNW 79%

12 PM 26° Mostly Cloudy 33% 5 mph WNW 74%

1 PM 28° Mostly Cloudy 33% 6 mph WNW 70%

2 PM 29° Partly Cloudy 58% 6 mph WNW 66%

3 PM 29° Mostly Clear 52% 6 mph W 64%

4 PM 30° Mostly Clear 59% 6 mph W 63%

5 PM 31° Partly Cloudy 58% 7 mph W 64%

6 PM 29° Mostly Cloudy 58% 6 mph W 70%

7 PM 28° Mostly Cloudy 48% 5 mph W 77%

8 PM 27° Overcast 37% 5 mph WNW 84%

9 PM 24° Overcast 33% 4 mph WNW 85%

10 PM 24° Overcast 18% 4 mph WNW 87%

11 PM 23° Overcast 18% 4 mph WNW 88%

12 AM 23° Mostly Cloudy 18% 5 mph NW 89%

1 AM 23° Partly Cloudy 9% 5 mph NW 89%

15-Day Forecast

Today

8/17

Partly Cloudy

77%

20°

31°

Tue

8/18

Mostly Clear

20°

31°

Wed

8/19

Mostly Clear

14%

18°

32°

Thu

8/20

Mostly Cloudy

60%

19°

30°

Fri

8/21

Rain

64%

19°

28°

Sat

8/22

Rain

70%

18°

28°

Sun

8/23

Rain

63%

19°

30°

Mon

8/24

Drizzle

43%

16°

29°

Tue

8/25

Rain

68%

14°

29°

Wed

8/26

Clear

60%

17°

30°

Thu

8/27

Clear

60%

18°

29°

Fri

8/28

Drizzle

60%

17°

29°

Sat

8/29

Drizzle

60%

17°

29°

Sun

8/30

Drizzle

60%

17°

28°

Mon

8/31

Clear

60%

17°

28°

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

42 AQI 7.6 µg/m³

O₃

Ground-level ozone

31 AQI 34 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 42 Good 31 42

Tue 42 Good 42 38

Wed 51 Moderate 46 51

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, 05:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE6 J/kg

MLCAPE15 J/kg

MUCAPE34 J/kg

SBCIN0 J/kg

MLCIN0 J/kg

Lifted Index3.3

Kinematics

0–6 km Shear19 kt

0–1 km Shear26 kt

Eff. Shear—

0–1 km SRH191

0–3 km SRH192

Eff. SRH—

Storm Motion300° @ 19 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index36.9

Thermo & Levels

PWAT2.37 in

0–3 km LR3.7 °C/km

700–500 LR5.4 °C/km

Total Totals43.1

LCL990 hPa

LFC1001 hPa

EL960 hPa

Freezing Lvl15,390 ft

Montgomery County, Pennsylvania, United States

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