Montgomery County, Pennsylvania, United States

Last updated: 3:51 AM CDT · Refresh

21°C

Feels like 23°

Overcast

▲ 31° / ▼ 20°

Wind

3 mph SSE

Humidity

97%

Dew Point

20°

Pressure

29.55 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 overcast at 20°C. Precipitation is likely — peak probability 71% around 4 AM. Atmospheric instability is elevated (CAPE up to 1437 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°

70%

5 AM

19°

19%

6 AM

20°

16%

7 AM

21°

8 AM

22°

18%

9 AM

23°

15%

10 AM

24°

23%

11 AM

26°

31%

12 PM

27°

34%

1 PM

28°

43%

2 PM

29°

51%

3 PM

30°

56%

4 PM

30°

67%

5 PM

30°

58%

6 PM

29°

54%

7 PM

27°

41%

8 PM

27°

33%

9 PM

24°

27%

10 PM

24°

17%

11 PM

23°

17%

12 AM

22°

15%

1 AM

22°

2 AM

22°

3 AM

22°

7-Day Forecast

Today

31° 20°

Partly Cloudy with a 70% chance of rain.

Tue

31° 20°

Partly Cloudy.

Wed

32° 19°

Mostly Cloudy.

Thu

29° 19°

Rain, 73% chance.

Fri

28° 19°

Rain, 64% chance.

Sat

28° 18°

Rain, 70% chance.

Sun

31° 18°

Rain, 63% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 21° Overcast 70% 3 mph SSE 97%

5 AM 19° Overcast 19% 2 mph WNW 97%

6 AM 20° Mostly Cloudy 16% 3 mph WNW 96%

7 AM 21° Mostly Cloudy 9% 4 mph WNW 95%

8 AM 22° Partly Cloudy 18% 5 mph WNW 91%

9 AM 23° Partly Cloudy 15% 5 mph WNW 86%

10 AM 24° Partly Cloudy 23% 6 mph WNW 81%

11 AM 26° Mostly Cloudy 31% 6 mph WNW 76%

12 PM 27° Mostly Cloudy 34% 6 mph WNW 72%

1 PM 28° Partly Cloudy 43% 6 mph WNW 68%

2 PM 29° Mostly Clear 51% 6 mph WNW 65%

3 PM 30° Mostly Clear 56% 6 mph W 64%

4 PM 30° Mostly Clear 67% 7 mph W 62%

5 PM 30° Partly Cloudy 58% 6 mph W 67%

6 PM 29° Mostly Cloudy 54% 5 mph W 74%

7 PM 27° Overcast 41% 5 mph W 82%

8 PM 27° Overcast 33% 4 mph W 85%

9 PM 24° Overcast 27% 4 mph WNW 86%

10 PM 24° Overcast 17% 4 mph WNW 88%

11 PM 23° Mostly Cloudy 17% 4 mph WNW 88%

12 AM 22° Partly Cloudy 15% 5 mph NW 89%

1 AM 22° Partly Cloudy 9% 5 mph NW 90%

2 AM 22° Partly Cloudy 9% 5 mph NW 90%

3 AM 22° Partly Cloudy 9% 5 mph NW 91%

15-Day Forecast

Today

8/17

Partly Cloudy

70%

20°

31°

Tue

8/18

Partly Cloudy

20°

31°

Wed

8/19

Mostly Cloudy

14%

19°

32°

Thu

8/20

Rain

73%

19°

29°

Fri

8/21

Rain

64%

19°

28°

Sat

8/22

Rain

70%

18°

28°

Sun

8/23

Rain

63%

18°

31°

Mon

8/24

Clear

43%

16°

28°

Tue

8/25

Rain

68%

14°

29°

Wed

8/26

Drizzle

60%

17°

28°

Thu

8/27

Drizzle

60%

17°

28°

Fri

8/28

Drizzle

60%

17°

27°

Sat

8/29

Drizzle

60%

17°

28°

Sun

8/30

Drizzle

60%

17°

29°

Mon

8/31

Drizzle

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, 07:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE0 J/kg

MLCAPE17 J/kg

MUCAPE74 J/kg

SBCIN—

MLCIN0 J/kg

Lifted Index3.1

Kinematics

0–6 km Shear15 kt

0–1 km Shear22 kt

Eff. Shear—

0–1 km SRH121

0–3 km SRH114

Eff. SRH—

Storm Motion322° @ 15 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index37.3

Thermo & Levels

PWAT2.34 in

0–3 km LR3.8 °C/km

700–500 LR5.2 °C/km

Total Totals43.2

LCL993 hPa

LFC—

EL—

Freezing Lvl15,243 ft

Montgomery County, Pennsylvania, United States

Alerts