Heat Advisory — Hartford, CT, Tolland, CT, Windham, CT, Eastern Franklin, MA, Northern Worcester, MA, Central Middlesex County, MA, Western Essex, MA, Eastern Essex, MA, Eastern Hampshire, MA, Eastern Hampden, MA, Southern Worcester, MA, Western Norfolk, MA, Southeast Middlesex, MA, Suffolk, MA, Eastern Norfolk, MA, Northern Bristol, MA, Western Plymouth, MA, Eastern Plymouth, MA, Southern Bristol, MA, Southern Plymouth, MA, Northwest Middlesex County, MA, Northwest Providence, RI, Southeast Providence, RI, Western Kent, RI, Eastern Kent, RI, Bristol, RI, Washington, RI, Newport, RI 7:00 PM

Medford, Massachusetts

Last updated: 2:07 AM CDT  ·  Refresh
24°C
Feels like 28°
Clear
▲ 34°  /  ▼ 22°
Wind
4 mph SW
Humidity
95%
Dew Point
23°
Pressure
29.96 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
9%
Sunrise
5:43 AM
Sunset
7:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Medford is currently clear at 24°C. Precipitation is likely — peak probability 66% around 3 AM. Atmospheric instability is elevated (CAPE up to 1331 J/kg) — isolated convective development possible. Sunrise: 5:43AM · Sunset: 7:56PM.

Alerts

Heat Advisory
Hartford, CT, Tolland, CT, Windham, CT, Eastern Franklin, MA, Northern Worcester, MA, Central Middlesex County, MA, Western Essex, MA, Eastern Essex, MA, Eastern Hampshire, MA, Eastern Hampden, MA, Southern Worcester, MA, Western Norfolk, MA, Southeast Middlesex, MA, Suffolk, MA, Eastern Norfolk, MA, Northern Bristol, MA, Western Plymouth, MA, Eastern Plymouth, MA, Southern Bristol, MA, Southern Plymouth, MA, Northwest Middlesex County, MA, Northwest Providence, RI, Southeast Providence, RI, Western Kent, RI, Eastern Kent, RI, Bristol, RI, Washington, RI, Newport, RI
Expires 7:00 PM
38 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
16%
4 AM
24°
3%
5 AM
22°
4%
6 AM
22°
5%
7 AM
23°
3%
8 AM
24°
3%
9 AM
27°
9%
10 AM
28°
21%
11 AM
30°
28%
12 PM
31°
30%
1 PM
33°
33%
2 PM
33°
34%
3 PM
33°
35%
4 PM
33°
35%
5 PM
33°
36%
6 PM
32°
36%
7 PM
31°
33%
8 PM
30°
33%
9 PM
28°
34%
10 PM
27°
46%
11 PM
27°
47%
12 AM
27°
53%
1 AM
27°
58%
2 AM
24°
65%
7-Day Forecast
Today
34° 22°
Clear with a 36% chance of rain.
Sat
34° 22°
Partly Cloudy with a 73% chance of rain.
Sun
37° 21°
Mostly Clear.
Mon
33° 19°
Clear with a 45% chance of rain.
Tue
36° 22°
Drizzle, 51% chance.
Wed
33° 20°
Rain, 70% chance.
Thu
31° 17°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Clear 16% 4 mph SW 95%
4 AM 24° Clear 3% 4 mph WSW 95%
5 AM 22° Clear 4% 4 mph WSW 95%
6 AM 22° Clear 5% 4 mph W 93%
7 AM 23° Clear 3% 5 mph W 89%
8 AM 24° Clear 3% 6 mph WNW 85%
9 AM 27° Clear 9% 6 mph WNW 76%
10 AM 28° Clear 21% 6 mph WNW 67%
11 AM 30° Clear 28% 5 mph WNW 58%
12 PM 31° Clear 30% 5 mph W 53%
1 PM 33° Clear 33% 5 mph W 49%
2 PM 33° Clear 34% 5 mph W 46%
3 PM 33° Clear 35% 5 mph W 48%
4 PM 33° Mostly Clear 35% 5 mph W 50%
5 PM 33° Mostly Clear 36% 5 mph W 54%
6 PM 32° Mostly Clear 36% 5 mph WSW 60%
7 PM 31° Partly Cloudy 33% 5 mph SW 67%
8 PM 30° Partly Cloudy 33% 5 mph SW 74%
9 PM 28° Partly Cloudy 34% 4 mph SW 77%
10 PM 27° Partly Cloudy 46% 4 mph SW 80%
11 PM 27° Mostly Cloudy 47% 4 mph WSW 81%
12 AM 27° Mostly Cloudy 53% 4 mph WSW 82%
1 AM 27° Mostly Cloudy 58% 4 mph WSW 84%
2 AM 24° Overcast 65% 4 mph WSW 85%
15-Day Forecast
Today
8/7
Clear
36%
22°
34°
Sat
8/8
Partly Cloudy
73%
22°
34°
Sun
8/9
Mostly Clear
17%
21°
37°
Mon
8/10
Clear
45%
19°
33°
Tue
8/11
Drizzle
51%
22°
36°
Wed
8/12
Rain
70%
20°
33°
Thu
8/13
Drizzle
63%
17°
31°
Fri
8/14
Rain
72%
16°
30°
Sat
8/15
Drizzle
44%
16°
30°
Sun
8/16
Drizzle
51%
17°
29°
Mon
8/17
Drizzle
60%
17°
28°
Tue
8/18
Drizzle
60%
17°
28°
Wed
8/19
Drizzle
60%
17°
28°
Thu
8/20
Drizzle
60%
17°
29°
Fri
8/21
Drizzle
60%
18°
29°
38
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
22 AQI 4.0 µg/m³
O3
Ground-level ozone
Dominant
38 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 38 Good 38 22
Sat 45 Good 45 36
Sun 49 Good 49 44
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 Aug 7, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE819 J/kg
MLCAPE972 J/kg
MUCAPE1194 J/kg
SBCIN-158 J/kg
MLCIN0 J/kg
Lifted Index-1.9
Kinematics
0–6 km Shear26 kt
0–1 km Shear11 kt
Eff. Shear28 kt
0–1 km SRH-47
0–3 km SRH-58
Eff. SRH-58
Storm Motion207° @ 24 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.8
Thermo & Levels
PWAT2.00 in
0–3 km LR4.5 °C/km
700–500 LR5.7 °C/km
Total Totals43.6
LCL994 hPa
LFC750 hPa
EL210 hPa
Freezing Lvl16,237 ft