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: 2:57 AM CDT  ·  Refresh
24°C
Feels like 28°
Mostly Clear
▲ 34°  /  ▼ 22°
Wind
4 mph WSW
Humidity
95%
Dew Point
23°
Pressure
29.97 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
15%
Sunrise
5:43 AM
Sunset
7:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Medford is currently mostly clear at 24°C. Precipitation is likely — peak probability 55% around 3 AM. Atmospheric instability is elevated (CAPE up to 1254 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°
15%
4 AM
22°
3%
5 AM
22°
4%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
9%
9 AM
28°
23%
10 AM
29°
23%
11 AM
31°
32%
12 PM
32°
32%
1 PM
33°
35%
2 PM
33°
36%
3 PM
32°
36%
4 PM
33°
37%
5 PM
32°
37%
6 PM
31°
34%
7 PM
29°
35%
8 PM
28°
35%
9 PM
28°
39%
10 PM
27°
47%
11 PM
27°
53%
12 AM
26°
54%
1 AM
26°
53%
2 AM
26°
54%
7-Day Forecast
Today
34° 22°
Mostly Clear with a 39% chance of rain.
Sat
34° 22°
Partly Cloudy with a 66% chance of rain.
Sun
37° 22°
Mostly Clear.
Mon
33° 19°
Clear with a 37% chance of rain.
Tue
35° 21°
Drizzle, 52% chance.
Wed
33° 19°
Rain, 69% chance.
Thu
30° 18°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 15% 4 mph WSW 95%
4 AM 22° Clear 3% 4 mph WSW 94%
5 AM 22° Clear 4% 4 mph W 93%
6 AM 23° Clear 3% 5 mph W 90%
7 AM 24° Clear 3% 5 mph W 86%
8 AM 26° Clear 9% 5 mph WNW 77%
9 AM 28° Clear 23% 6 mph WNW 68%
10 AM 29° Clear 23% 5 mph WNW 59%
11 AM 31° Clear 32% 5 mph W 54%
12 PM 32° Clear 32% 5 mph W 50%
1 PM 33° Clear 35% 5 mph W 46%
2 PM 33° Clear 36% 5 mph W 48%
3 PM 32° Mostly Clear 36% 5 mph WSW 50%
4 PM 33° Mostly Clear 37% 5 mph WSW 53%
5 PM 32° Mostly Clear 37% 5 mph WSW 59%
6 PM 31° Partly Cloudy 34% 4 mph SW 66%
7 PM 29° Partly Cloudy 35% 5 mph SSW 74%
8 PM 28° Partly Cloudy 35% 4 mph SSW 77%
9 PM 28° Partly Cloudy 39% 4 mph SW 79%
10 PM 27° Partly Cloudy 47% 4 mph SW 81%
11 PM 27° Mostly Cloudy 53% 4 mph SW 83%
12 AM 26° Mostly Cloudy 54% 4 mph WSW 84%
1 AM 26° Mostly Cloudy 53% 5 mph WSW 86%
2 AM 26° Mostly Cloudy 54% 4 mph WSW 87%
15-Day Forecast
Today
8/7
Mostly Clear
39%
22°
34°
Sat
8/8
Partly Cloudy
66%
22°
34°
Sun
8/9
Mostly Clear
13%
22°
37°
Mon
8/10
Clear
37%
19°
33°
Tue
8/11
Drizzle
52%
21°
35°
Wed
8/12
Rain
69%
19°
33°
Thu
8/13
Drizzle
63%
18°
30°
Fri
8/14
Rain
74%
17°
29°
Sat
8/15
Drizzle
47%
17°
29°
Sun
8/16
Clear
35%
17°
29°
Mon
8/17
Drizzle
60%
17°
28°
Tue
8/18
Clear
60%
17°
28°
Wed
8/19
Drizzle
60%
17°
29°
Thu
8/20
Clear
60%
17°
29°
Fri
8/21
Drizzle
60%
17°
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, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE789 J/kg
MLCAPE917 J/kg
MUCAPE1076 J/kg
SBCIN-169 J/kg
MLCIN0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear23 kt
0–1 km Shear8 kt
Eff. Shear24 kt
0–1 km SRH-34
0–3 km SRH-59
Eff. SRH-59
Storm Motion209° @ 23 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.5
Thermo & Levels
PWAT2.04 in
0–3 km LR4.5 °C/km
700–500 LR5.9 °C/km
Total Totals44.8
LCL997 hPa
LFC732 hPa
EL214 hPa
Freezing Lvl15,846 ft