Severe Thunderstorm Watch 9:00 PM

Westchester County, New York, United States

Last updated: 6:03 PM CDT  ·  Refresh
18°C
Feels like 18°
Rain
▲ 19°  /  ▼ 6°
Wind
8 mph WSW
Humidity
93%
Dew Point
18°
Pressure
29.25 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
74%
Sunrise
7:08 AM
Sunset
6:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Westchester County is currently rain at 19°C. Precipitation is likely — peak probability 87% around 6 PM. Sunrise: 7:08AM · Sunset: 6:12PM.

Alerts

Severe Thunderstorm Watch
Expires 9:00 PM
33 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
87%
7 PM
18°
70%
8 PM
17°
55%
9 PM
16°
30%
10 PM
16°
27%
11 PM
14°
48%
12 AM
12°
36%
1 AM
11°
31%
2 AM
10°
18%
3 AM
9°
18%
4 AM
7°
12%
5 AM
7°
12%
6 AM
6°
12%
7 AM
6°
12%
8 AM
7°
9%
9 AM
7°
9%
10 AM
7°
5%
11 AM
7°
5%
12 PM
8°
5%
1 PM
11°
3%
2 PM
10°
3%
3 PM
10°
3%
4 PM
8°
3%
5 PM
8°
3%
7-Day Forecast
Tonight
19° 6°
Mostly Cloudy with a 87% chance of rain.
Sat
17° 3°
Overcast with a 36% chance of rain.
Sun
15° 2°
Clear.
Mon
18° 3°
Clear with a 30% chance of rain.
Tue
21° 7°
Clear.
Wed
18° 5°
Clear with a 71% chance of rain.
Thu
17° 4°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Cloudy 87% 8 mph WSW 93%
7 PM 18° Rain 70% 8 mph WNW 91%
8 PM 17° Overcast 55% 8 mph WNW 88%
9 PM 16° Mostly Cloudy 30% 9 mph WNW 84%
10 PM 16° Partly Cloudy 27% 9 mph NW 80%
11 PM 14° Mostly Cloudy 48% 10 mph NW 79%
12 AM 12° Overcast 36% 9 mph NW 76%
1 AM 11° Overcast 31% 9 mph NW 75%
2 AM 10° Overcast 18% 9 mph NNW 76%
3 AM 9° Overcast 18% 9 mph NNW 76%
4 AM 7° Overcast 12% 10 mph NNW 76%
5 AM 7° Overcast 12% 10 mph NNW 75%
6 AM 6° Overcast 12% 11 mph NNW 74%
7 AM 6° Overcast 12% 11 mph NNW 72%
8 AM 7° Overcast 9% 12 mph NNW 68%
9 AM 7° Overcast 9% 12 mph NNW 63%
10 AM 7° Overcast 5% 14 mph NNW 58%
11 AM 7° Overcast 5% 14 mph NNW 52%
12 PM 8° Overcast 5% 13 mph NNW 48%
1 PM 11° Overcast 3% 13 mph NNW 44%
2 PM 10° Mostly Cloudy 3% 13 mph NNW 44%
3 PM 10° Mostly Cloudy 3% 13 mph NNW 44%
4 PM 8° Partly Cloudy 3% 12 mph NNW 44%
5 PM 8° Partly Cloudy 3% 12 mph NNW 45%
15-Day Forecast
Today
10/16
Mostly Cloudy
87%
6°
19°
Sat
10/17
Overcast
36%
3°
17°
Sun
10/18
Clear
3%
2°
15°
Mon
10/19
Clear
30%
3°
18°
Tue
10/20
Clear
8%
7°
21°
Wed
10/21
Clear
71%
5°
18°
Thu
10/22
Drizzle
60%
4°
17°
Fri
10/23
Clear
18%
5°
21°
Sat
10/24
Clear
3%
6°
17°
Sun
10/25
Clear
3%
4°
16°
Mon
10/26
Clear
60%
6°
18°
Tue
10/27
Clear
60%
7°
17°
Wed
10/28
Drizzle
60%
7°
16°
Thu
10/29
Clear
25%
7°
16°
Fri
10/30
Drizzle
60%
7°
16°
33
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
16 AQI 2.8 µg/m³
O3
Ground-level ozone
Dominant
33 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 33 Good 33 16
Sun 27 Good 27 2
Mon 23 Good 23 7
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. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 100 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE14 J/kg
MLCAPE197 J/kg
MUCAPE326 J/kg
SBCIN-212 J/kg
MLCIN-31 J/kg
Lifted Index0.8
Kinematics
0–6 km Shear62 kt
0–1 km Shear30 kt
Eff. Shear40 kt
0–1 km SRH95
0–3 km SRH119
Eff. SRH64
Storm Motion257° @ 50 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.1
Supercell0.4
K-Index31.7
Thermo & Levels
PWAT1.48 in
0–3 km LR4.5 °C/km
700–500 LR6.2 °C/km
Total Totals47.4
LCL976 hPa
LFC638 hPa
EL544 hPa
Freezing Lvl12,103 ft