Worcester County, Massachusetts, United States

Last updated: 9:48 PM CDT  ·  Refresh
18°C
Feels like 18°
Rain
▲ 18°  /  ▼ 16°
Wind
9 mph ENE
Humidity
99%
Dew Point
17°
Pressure
28.91 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
98%
Sunrise
5:37 AM
Sunset
8:10 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Worcester County is currently rain at 18°C. Precipitation is likely — peak probability 88% around 3 AM. Sunrise: 5:37AM · Sunset: 8:10PM.

Alerts

No active alerts for this location.
33 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
80%
11 PM
18°
81%
12 AM
18°
76%
1 AM
17°
76%
2 AM
17°
76%
3 AM
17°
87%
4 AM
16°
87%
5 AM
16°
87%
6 AM
16°
87%
7 AM
16°
75%
8 AM
16°
72%
9 AM
16°
67%
10 AM
16°
70%
11 AM
17°
63%
12 PM
18°
54%
1 PM
19°
54%
2 PM
19°
57%
3 PM
19°
62%
4 PM
21°
62%
5 PM
21°
56%
6 PM
21°
60%
7 PM
21°
57%
8 PM
18°
47%
9 PM
18°
52%
7-Day Forecast
Tonight
18° 16°
Rain, 80% chance.
Thu
21° 16°
Overcast with a 87% chance of rain.
Fri
28° 16°
Partly Cloudy with a 65% chance of rain.
Sat
31° 17°
Partly Cloudy with a 43% chance of rain.
Sun
30° 18°
Clear with a 58% chance of rain.
Mon
29° 15°
Rain, 64% chance.
Tue
32° 14°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 18° Rain 80% 9 mph ENE 99%
11 PM 18° Overcast 81% 10 mph NE 99%
12 AM 18° Haze 76% 9 mph NE 99%
1 AM 17° Fog 76% 9 mph NE 99%
2 AM 17° Fog 76% 9 mph NE 99%
3 AM 17° Fog 87% 8 mph NNE 99%
4 AM 16° Fog 87% 8 mph NNE 99%
5 AM 16° Overcast 87% 8 mph NNE 99%
6 AM 16° Overcast 87% 8 mph NNE 99%
7 AM 16° Overcast 75% 9 mph NNE 98%
8 AM 16° Overcast 72% 9 mph NNE 97%
9 AM 16° Overcast 67% 8 mph N 97%
10 AM 16° Overcast 70% 9 mph N 97%
11 AM 17° Overcast 63% 8 mph N 93%
12 PM 18° Mostly Cloudy 54% 8 mph N 90%
1 PM 19° Mostly Cloudy 54% 8 mph N 87%
2 PM 19° Mostly Cloudy 57% 7 mph N 86%
3 PM 19° Mostly Cloudy 62% 7 mph N 86%
4 PM 21° Overcast 62% 6 mph N 85%
5 PM 21° Overcast 56% 6 mph N 87%
6 PM 21° Rain 60% 5 mph N 88%
7 PM 21° Rain 57% 6 mph N 90%
8 PM 18° Rain 47% 6 mph N 92%
9 PM 18° Rain 52% 5 mph N 94%
15-Day Forecast
Today
7/29
Rain
80%
16°
18°
Thu
7/30
Overcast
87%
16°
21°
Fri
7/31
Partly Cloudy
65%
16°
28°
Sat
8/1
Partly Cloudy
43%
17°
31°
Sun
8/2
Clear
58%
18°
30°
Mon
8/3
Rain
64%
15°
29°
Tue
8/4
Clear
17%
14°
32°
Wed
8/5
Clear
17%
17°
34°
Thu
8/6
Drizzle
44%
18°
34°
Fri
8/7
Rain
68%
19°
32°
Sat
8/8
Drizzle
60%
18°
34°
Sun
8/9
Drizzle
60%
18°
33°
Mon
8/10
Drizzle
60%
17°
32°
Tue
8/11
Drizzle
60%
17°
30°
Wed
8/12
Drizzle
60%
15°
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
24 AQI 4.4 µg/m³
O3
Ground-level ozone
Dominant
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 33 Good 33 24
Fri 32 Good 32 19
Sat 31 Good 31 28
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Thu Jul 30, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE13 J/kg
MUCAPE25 J/kg
SBCIN-8142 J/kg
MLCIN0 J/kg
Lifted Index0.8
Kinematics
0–6 km Shear17 kt
0–1 km Shear19 kt
Eff. Shear—
0–1 km SRH59
0–3 km SRH39
Eff. SRH—
Storm Motion119° @ 24 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index34.5
Thermo & Levels
PWAT1.52 in
0–3 km LR4.7 °C/km
700–500 LR5.7 °C/km
Total Totals46.2
LCL974 hPa
LFC—
EL—
Freezing Lvl12,119 ft