Heat Advisory — McKenzie, ND, Dunn, ND, Mercer, ND, Oliver, ND, Sheridan, ND, Wells, ND, Foster, ND, Golden Valley, ND, Billings, ND, Stark, ND, Burleigh, ND, Kidder, ND, Stutsman, ND, Slope, ND, Hettinger, ND, Grant, ND, Bowman, ND, Adams, ND, Emmons, ND, Logan, ND, La Moure, ND, McIntosh, ND, Dickey, ND, Western McLean, ND, Eastern McLean, ND, Western Morton, ND, Eastern Morton, ND, Western Sioux, ND, Eastern Sioux, ND 10:00 PM

Greenwich, Connecticut

Last updated: 5:55 PM CDT  ·  Refresh
29°C
Feels like 29°
Mostly Clear
▲ 31°  /  ▼ 19°
Wind
10 mph WNW
Humidity
42%
Dew Point
17°
Pressure
29.62 inHg
Visibility
3 mi
UV Index
3.6
Cloud Cover
29%
Sunrise
5:36 AM
Sunset
8:24 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Greenwich is currently mostly clear at 29°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:36AM · Sunset: 8:24PM.

Alerts

Heat Advisory
McKenzie, ND, Dunn, ND, Mercer, ND, Oliver, ND, Sheridan, ND, Wells, ND, Foster, ND, Golden Valley, ND, Billings, ND, Stark, ND, Burleigh, ND, Kidder, ND, Stutsman, ND, Slope, ND, Hettinger, ND, Grant, ND, Bowman, ND, Adams, ND, Emmons, ND, Logan, ND, La Moure, ND, McIntosh, ND, Dickey, ND, Western McLean, ND, Eastern McLean, ND, Western Morton, ND, Eastern Morton, ND, Western Sioux, ND, Eastern Sioux, ND
Expires 10:00 PM
253 AQI · Very Unhealthy Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
3%
7 PM
28°
23%
8 PM
27°
23%
9 PM
26°
23%
10 PM
25°
23%
11 PM
24°
23%
12 AM
24°
23%
1 AM
23°
16%
2 AM
22°
3%
3 AM
22°
3%
4 AM
19°
3%
5 AM
19°
3%
6 AM
21°
3%
7 AM
22°
3%
8 AM
22°
3%
9 AM
23°
3%
10 AM
24°
3%
11 AM
25°
3%
12 PM
25°
3%
1 PM
26°
3%
2 PM
27°
3%
3 PM
27°
3%
4 PM
28°
3%
5 PM
28°
3%
7-Day Forecast
Tonight
31° 19°
Mostly Clear with a 23% chance of rain.
Fri
28° 19°
Partly Cloudy with a 23% chance of rain.
Sat
26° 21°
Heavy Rain, 82% chance.
Sun
27° 18°
Clear with a 56% chance of rain.
Mon
27° 17°
Mostly Clear with a 38% chance of rain.
Tue
27° 21°
Rain, 90% chance.
Wed
27° 19°
Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Mostly Clear 3% 10 mph WNW 42%
7 PM 28° Clear 23% 8 mph WNW 44%
8 PM 27° Mostly Clear 23% 8 mph WNW 47%
9 PM 26° Mostly Clear 23% 7 mph WNW 48%
10 PM 25° Mostly Clear 23% 7 mph WNW 49%
11 PM 24° Mostly Clear 23% 7 mph NW 50%
12 AM 24° Mostly Clear 23% 7 mph NW 52%
1 AM 23° Clear 16% 6 mph NW 56%
2 AM 22° Clear 3% 6 mph NW 59%
3 AM 22° Mostly Clear 3% 6 mph NW 61%
4 AM 19° Clear 3% 6 mph NNW 63%
5 AM 19° Mostly Clear 3% 6 mph NNW 62%
6 AM 21° Partly Cloudy 3% 5 mph NNW 61%
7 AM 22° Partly Cloudy 3% 6 mph N 57%
8 AM 22° Partly Cloudy 3% 5 mph NNW 50%
9 AM 23° Partly Cloudy 3% 6 mph NW 43%
10 AM 24° Partly Cloudy 3% 6 mph NW 36%
11 AM 25° Partly Cloudy 3% 6 mph NW 33%
12 PM 25° Partly Cloudy 3% 6 mph NW 31%
1 PM 26° Partly Cloudy 3% 6 mph NW 29%
2 PM 27° Partly Cloudy 3% 6 mph WNW 29%
3 PM 27° Partly Cloudy 3% 6 mph WNW 29%
4 PM 28° Partly Cloudy 3% 6 mph WNW 29%
5 PM 28° Partly Cloudy 3% 5 mph WNW 32%
15-Day Forecast
Today
7/16
Mostly Clear
23%
19°
31°
Fri
7/17
Partly Cloudy
23%
19°
28°
Sat
7/18
Heavy Rain
82%
21°
26°
Sun
7/19
Clear
56%
18°
27°
Mon
7/20
Mostly Clear
38%
17°
27°
Tue
7/21
Rain
90%
21°
27°
Wed
7/22
Rain
90%
19°
27°
Thu
7/23
Clear
60%
18°
27°
Fri
7/24
Drizzle
60%
18°
26°
Sat
7/25
Rain
90%
19°
26°
Sun
7/26
Drizzle
60%
20°
25°
Mon
7/27
Drizzle
60%
20°
25°
Tue
7/28
Drizzle
60%
20°
26°
Wed
7/29
Drizzle
60%
20°
26°
Thu
7/30
Drizzle
60%
20°
26°
253
Very Unhealthy
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Health alert: the risk of health effects is increased for everyone.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
253 AQI 178.2 µg/m³
O3
Ground-level ozone
54 AQI 57 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 253 Very Unhealthy 54 253
Sat 62 Moderate 44 62
Sun 124 Unhealthy for Sensitive Groups 45 124
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 Thu Jul 16, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE34 J/kg
MLCAPE0 J/kg
MUCAPE34 J/kg
SBCIN-190 J/kg
MLCIN0 J/kg
Lifted Index-0.5
Kinematics
0–6 km Shear54 kt
0–1 km Shear15 kt
Eff. Shear—
0–1 km SRH-23
0–3 km SRH-108
Eff. SRH—
Storm Motion263° @ 41 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-9.7
Thermo & Levels
PWAT0.91 in
0–3 km LR6.5 °C/km
700–500 LR6.6 °C/km
Total Totals39.3
LCL837 hPa
LFC604 hPa
EL422 hPa
Freezing Lvl14,275 ft