Hourly Weather Forecast for Medford, Massachusetts

Hourly Weather | Today › Thursday, July 2, 2026

Active Weather Warnings

Extreme Heat Watch
Extreme Heat Warning
Air Quality Alert

Medford, Massachusetts

11 PM

86°

Feels Like 88°

Humidity: 59%

UV Index: 0

Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 PM

57 AQI

Moderate air quality Dominant pollutant: PM_2.5

Details

Pollutant Concentrations:

PM_2.5: 15.32 µg/m³
PM₁₀: 22.24 µg/m³
O₃: 0.051 ppm
NO₂: 2.1 ppb
SO₂: 0.5 ppb
CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Medford

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued June 29 at 12:59PM EDT until July 4 at 8:00PM EDT by NWS Boston/Norton MA

Jul 1, 10:00 AM → Jul 4, 8:00 PM

WHAT: Dangerously hot conditions with heat index values up to 111
possible.

WHERE: Much of Southern New England except for Cape Cod, Martha's
Vineyard, Nantucket and Block Island.

WHEN: From Wednesday morning through Saturday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Monitor the latest forecasts and warnings for updates.

Updated: Jun 30, 1:31 AM Source: NWS Alert

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued July 2 at 2:29PM EDT until July 4 at 8:00PM EDT by NWS Boston/Norton MA

Jul 2, 2:29 PM → Jul 4, 8:00 PM

WHAT: Dangerously hot conditions with heat index values up to 112.

WHERE: Portions of northern Connecticut, majority of
Massachusetts, and Rhode Island.

WHEN: Until 8 PM EDT Saturday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Updated: Jul 2, 11:14 PM Source: NWS Alert

Air Quality Alert

Air Quality Alert issued July 2 at 1:52AM EDT by NWS Boston/Norton MA

Jul 2, 1:52 AM → Jul 2, 11:00 PM

The Massachusetts Department of Environmental Protection has issued
an Air Quality Alert for Ground Level Ozone, from 11 AM this morning
to 11 PM EDT this evening.

An Air Quality Alert day means that Ground Level Ozone
concentrations within the region may approach or exceed levels that
are Unhealthy for Sensitive Groups.

Air is unhealthy for sensitive children and adults, such as those
with asthma, lung or heart disease, and older adults. Sensitive
children and adults should limit prolonged outdoor activity.

For additional information, please visit the Massachusetts
Department of Environmental Protection website at:
https://mass.gov/dep/massair/forecast

Updated: Jul 2, 9:41 PM Source: NWS Alert