Westchester County, New York, United States

Last updated: 6:28 PM CDT · Refresh

22°C

Feels like 25°

Overcast

▲ 26° / ▼ 17°

Wind

6 mph S

Humidity

95%

Dew Point

22°

Pressure

29.24 inHg

Visibility

8 mi

UV Index

0.9

Cloud Cover

93%

Sunrise

5:40 AM

Sunset

8:22 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Westchester County is currently overcast at 22°C. Precipitation is likely — peak probability 65% around 11 PM. Atmospheric instability is elevated (CAPE up to 1424 J/kg) — isolated convective development possible. Sunrise: 5:40AM · Sunset: 8:22PM.

66 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

22°

63%

8 PM

23°

49%

9 PM

23°

50%

10 PM

23°

51%

11 PM

23°

65%

12 AM

22°

62%

1 AM

22°

36%

2 AM

22°

45%

3 AM

22°

45%

4 AM

22°

50%

5 AM

20°

50%

6 AM

21°

39%

7 AM

21°

31%

8 AM

22°

26%

9 AM

22°

35%

10 AM

23°

45%

11 AM

24°

45%

12 PM

24°

42%

1 PM

24°

26%

2 PM

26°

36%

3 PM

26°

27%

4 PM

26°

27%

5 PM

27°

25%

6 PM

26°

16%

7-Day Forecast

Tonight

26° 17°

Overcast with a 63% chance of rain.

Wed

28° 19°

Rain, 50% chance.

Thu

26° 16°

Clear.

Fri

26° 14°

Mostly Clear.

Sat

27° 16°

Partly Cloudy.

Sun

28° 17°

Rain, 71% chance.

Mon

27° 18°

Drizzle, 60% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 22° Overcast 63% 6 mph S 95%

8 PM 23° Overcast 49% 7 mph SSW 96%

9 PM 23° Overcast 50% 8 mph SSW 97%

10 PM 23° Overcast 51% 9 mph SSW 97%

11 PM 23° Overcast 65% 9 mph SSW 97%

12 AM 22° Overcast 62% 9 mph SSW 96%

1 AM 22° Overcast 36% 9 mph SSW 96%

2 AM 22° Overcast 45% 9 mph SSW 96%

3 AM 22° Overcast 45% 9 mph SSW 96%

4 AM 22° Overcast 50% 8 mph SSW 96%

5 AM 20° Mostly Cloudy 50% 8 mph SW 94%

6 AM 21° Partly Cloudy 39% 8 mph SW 92%

7 AM 21° Partly Cloudy 31% 8 mph SW 90%

8 AM 22° Rain 26% 8 mph SW 87%

9 AM 22° Rain 35% 7 mph WSW 83%

10 AM 23° Rain 45% 7 mph WSW 79%

11 AM 24° Rain 45% 7 mph WSW 75%

12 PM 24° Partly Cloudy 42% 8 mph WSW 71%

1 PM 24° Partly Cloudy 26% 8 mph W 68%

2 PM 26° Partly Cloudy 36% 8 mph W 64%

3 PM 26° Partly Cloudy 27% 8 mph W 59%

4 PM 26° Partly Cloudy 27% 8 mph W 56%

5 PM 27° Partly Cloudy 25% 8 mph W 55%

6 PM 26° Mostly Clear 16% 8 mph WNW 58%

15-Day Forecast

Today

7/21

Overcast

63%

17°

26°

Wed

7/22

Rain

50%

19°

28°

Thu

7/23

Clear

16°

26°

Fri

7/24

Mostly Clear

14°

26°

Sat

7/25

Partly Cloudy

16°

27°

Sun

7/26

Rain

71%

17°

28°

Mon

7/27

Drizzle

60%

18°

27°

Tue

7/28

Drizzle

63%

17°

26°

Wed

7/29

Drizzle

68%

17°

26°

Thu

7/30

Drizzle

68%

17°

26°

Fri

7/31

Drizzle

55%

19°

27°

Sat

8/1

Drizzle

60%

19°

26°

Sun

8/2

Drizzle

60%

19°

27°

Mon

8/3

Drizzle

60%

20°

27°

Tue

8/4

Drizzle

60%

20°

28°

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

66 AQI 16.9 µg/m³

O₃

Ground-level ozone

44 AQI 47 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Wed 66 Moderate 44 66

Thu 36 Good 36 22

Fri 38 Good 38 32

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

SBCAPE572 J/kg

MLCAPE538 J/kg

MUCAPE587 J/kg

SBCIN-94 J/kg

MLCIN0 J/kg

Lifted Index-2.9

Kinematics

0–6 km Shear37 kt

0–1 km Shear17 kt

Eff. Shear43 kt

0–1 km SRH-24

0–3 km SRH-79

Eff. SRH-79

Storm Motion212° @ 39 kt

0–1 km EHI-0.1

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index33.9

Thermo & Levels

PWAT1.93 in

0–3 km LR5.1 °C/km

700–500 LR5.6 °C/km

Total Totals46.2

LCL977 hPa

LFC745 hPa

EL288 hPa

Freezing Lvl13,665 ft

Westchester County, New York, United States

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