Westchester County, New York, United States

Last updated: 8:05 PM CDT · Refresh

22°C

Feels like 24°

Overcast

▲ 24° / ▼ 17°

Wind

7 mph S

Humidity

96%

Dew Point

21°

Pressure

29.24 inHg

Visibility

10 mi

UV Index

0.0

Cloud Cover

91%

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 63% around 10 PM. Atmospheric instability is elevated (CAPE up to 1162 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°

47%

10 PM

23°

62%

11 PM

23°

59%

12 AM

22°

58%

1 AM

22°

35%

2 AM

22°

38%

3 AM

22°

54%

4 AM

22°

58%

5 AM

20°

44%

6 AM

20°

33%

7 AM

21°

26%

8 AM

21°

21%

9 AM

22°

29%

10 AM

23°

30%

11 AM

24°

39%

12 PM

24°

39%

1 PM

24°

23%

2 PM

25°

20%

3 PM

25°

20%

4 PM

26°

21%

5 PM

27°

19%

6 PM

26°

7 PM

25°

8 PM

24°

7-Day Forecast

Tonight

24° 17°

Overcast with a 47% chance of rain.

Wed

27° 18°

Partly Cloudy with a 58% chance of rain.

Thu

27° 14°

Mostly Clear.

Fri

27° 13°

Partly Cloudy.

Sat

26° 16°

Clear.

Sun

27° 16°

Drizzle, 70% chance.

Mon

29° 19°

Drizzle, 71% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 22° Overcast 47% 7 mph S 96%

10 PM 23° Overcast 62% 9 mph SSW 96%

11 PM 23° Rain 59% 9 mph SSW 97%

12 AM 22° Overcast 58% 10 mph SSW 96%

1 AM 22° Overcast 35% 8 mph SSW 96%

2 AM 22° Overcast 38% 9 mph SSW 96%

3 AM 22° Overcast 54% 9 mph SSW 97%

4 AM 22° Mostly Cloudy 58% 8 mph SSW 96%

5 AM 20° Overcast 44% 7 mph SW 95%

6 AM 20° Mostly Cloudy 33% 7 mph SW 93%

7 AM 21° Mostly Cloudy 26% 8 mph SW 90%

8 AM 21° Partly Cloudy 21% 8 mph SW 87%

9 AM 22° Rain 29% 8 mph SW 82%

10 AM 23° Rain 30% 8 mph WSW 77%

11 AM 24° Rain 39% 8 mph WSW 72%

12 PM 24° Partly Cloudy 39% 9 mph W 69%

1 PM 24° Mostly Clear 23% 9 mph W 66%

2 PM 25° Mostly Clear 20% 9 mph W 62%

3 PM 25° Mostly Clear 20% 9 mph W 58%

4 PM 26° Mostly Clear 21% 9 mph W 55%

5 PM 27° Mostly Clear 19% 9 mph W 52%

6 PM 26° Partly Cloudy 9% 8 mph W 55%

7 PM 25° Partly Cloudy 9% 8 mph WNW 58%

8 PM 24° Partly Cloudy 3% 8 mph NW 60%

15-Day Forecast

Today

7/21

Overcast

47%

17°

24°

Wed

7/22

Partly Cloudy

58%

18°

27°

Thu

7/23

Mostly Clear

14°

27°

Fri

7/24

Partly Cloudy

13°

27°

Sat

7/25

Clear

16°

26°

Sun

7/26

Drizzle

70%

16°

27°

Mon

7/27

Drizzle

71%

19°

29°

Tue

7/28

Rain

63%

18°

26°

Wed

7/29

Rain

69%

17°

27°

Thu

7/30

Drizzle

44%

17°

27°

Fri

7/31

Drizzle

60%

17°

30°

Sat

8/1

Drizzle

60%

19°

29°

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

Today 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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE410 J/kg

MLCAPE489 J/kg

MUCAPE570 J/kg

SBCIN-101 J/kg

MLCIN0 J/kg

Lifted Index-2.5

Kinematics

0–6 km Shear39 kt

0–1 km Shear16 kt

Eff. Shear42 kt

0–1 km SRH-21

0–3 km SRH-89

Eff. SRH-89

Storm Motion217° @ 39 kt

0–1 km EHI-0.1

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index34.7

Thermo & Levels

PWAT1.88 in

0–3 km LR5.1 °C/km

700–500 LR5.5 °C/km

Total Totals46.3

LCL980 hPa

LFC754 hPa

EL376 hPa

Freezing Lvl13,799 ft

Westchester County, New York, United States

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