Hartford County, Capitol Planning Region, Connecticut, United States

Last updated: 8:40 PM CDT  ·  Refresh
21°C
Feels like 22°
Mostly Cloudy
▲ 21°  /  ▼ 17°
Wind
6 mph E
Humidity
91%
Dew Point
19°
Pressure
29.42 inHg
Visibility
2 mi
UV Index
0.0
Cloud Cover
63%
Sunrise
5:42 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Hartford County is currently mostly cloudy at 20°C. Precipitation is likely — peak probability 74% around 9 AM. Atmospheric instability is elevated (CAPE up to 556 J/kg) — isolated convective development possible. Sunrise: 5:42AM · Sunset: 8:12PM.

Alerts

No active alerts for this location.
33 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
39%
10 PM
20°
51%
11 PM
20°
51%
12 AM
19°
61%
1 AM
19°
68%
2 AM
18°
68%
3 AM
18°
65%
4 AM
18°
71%
5 AM
17°
58%
6 AM
17°
69%
7 AM
17°
69%
8 AM
18°
69%
9 AM
18°
74%
10 AM
18°
70%
11 AM
18°
68%
12 PM
18°
56%
1 PM
21°
55%
2 PM
21°
52%
3 PM
21°
47%
4 PM
21°
44%
5 PM
23°
44%
6 PM
23°
30%
7 PM
23°
29%
8 PM
22°
20%
7-Day Forecast
Tonight
21° 17°
Mostly Cloudy with a 39% chance of rain.
Thu
23° 17°
Mostly Cloudy with a 74% chance of rain.
Fri
29° 17°
Mostly Clear with a 51% chance of rain.
Sat
31° 18°
Partly Cloudy with a 62% chance of rain.
Sun
29° 19°
Drizzle, 64% chance.
Mon
29° 17°
Rain, 64% chance.
Tue
31° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 21° Mostly Cloudy 39% 6 mph E 91%
10 PM 20° Partly Cloudy 51% 5 mph E 93%
11 PM 20° Partly Cloudy 51% 5 mph ENE 94%
12 AM 19° Partly Cloudy 61% 4 mph NE 94%
1 AM 19° Mostly Cloudy 68% 5 mph NNE 95%
2 AM 18° Rain 68% 4 mph NNE 96%
3 AM 18° Rain 65% 5 mph N 96%
4 AM 18° Mostly Cloudy 71% 5 mph N 97%
5 AM 17° Mostly Cloudy 58% 6 mph N 96%
6 AM 17° Mostly Cloudy 69% 6 mph N 94%
7 AM 17° Mostly Cloudy 69% 6 mph N 92%
8 AM 18° Rain 69% 7 mph N 91%
9 AM 18° Mostly Cloudy 74% 7 mph N 91%
10 AM 18° Overcast 70% 8 mph N 91%
11 AM 18° Overcast 68% 8 mph N 91%
12 PM 18° Mostly Cloudy 56% 8 mph N 89%
1 PM 21° Mostly Cloudy 55% 8 mph N 87%
2 PM 21° Mostly Cloudy 52% 8 mph NNW 87%
3 PM 21° Partly Cloudy 47% 8 mph NNW 87%
4 PM 21° Partly Cloudy 44% 7 mph NNW 87%
5 PM 23° Partly Cloudy 44% 7 mph NNW 87%
6 PM 23° Partly Cloudy 30% 6 mph NNW 87%
7 PM 23° Mostly Cloudy 29% 6 mph NNW 87%
8 PM 22° Mostly Cloudy 20% 6 mph NNW 87%
15-Day Forecast
Today
7/29
Mostly Cloudy
39%
17°
21°
Thu
7/30
Mostly Cloudy
74%
17°
23°
Fri
7/31
Mostly Clear
51%
17°
29°
Sat
8/1
Partly Cloudy
62%
18°
31°
Sun
8/2
Drizzle
64%
19°
29°
Mon
8/3
Rain
64%
17°
29°
Tue
8/4
Clear
17%
16°
31°
Wed
8/5
Clear
17%
18°
33°
Thu
8/6
Drizzle
44%
20°
33°
Fri
8/7
Rain
68%
21°
32°
Sat
8/8
Drizzle
60%
19°
33°
Sun
8/9
Drizzle
60%
19°
33°
Mon
8/10
Drizzle
60%
18°
31°
Tue
8/11
Drizzle
60%
18°
30°
Wed
8/12
Drizzle
60%
17°
30°
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
30 AQI 5.5 µg/m³
O3
Ground-level ozone
Dominant
33 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 33 Good 33 30
Fri 27 Good 27 23
Sat 42 Good 35 42
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 Wed Jul 29, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE382 J/kg
MLCAPE616 J/kg
MUCAPE788 J/kg
SBCIN-20 J/kg
MLCIN0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear14 kt
0–1 km Shear10 kt
Eff. Shear15 kt
0–1 km SRH-1
0–3 km SRH-30
Eff. SRH-30
Storm Motion138° @ 20 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.0
Thermo & Levels
PWAT1.72 in
0–3 km LR5.2 °C/km
700–500 LR6.0 °C/km
Total Totals49.3
LCL977 hPa
LFC856 hPa
EL298 hPa
Freezing Lvl12,572 ft