Lexington Weather

Lexington, Massachusetts, USA

92°F
7/1/2026 2:14pm 
  • Lexington Conditions: Partly cloudy
  • Temperature: 91.6°F / 33.1°CWarmer 1.1°F than last hour.
  • Dew Point: 73.6°FDecreased 0.5°Fsince last hour.
  • Feels Like: 101.1°F
  • Relative Humidity: 56%Decreased 3.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.86 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   
Southeast Middlesex County, MA - Extreme Heat Warning - Air Quality Alert - Air Quality Alert
 - SEE ALL NEARBY ALERTS -

Watches, Warnings, and Advisories

Issued by the National Weather Service - Boston / Norton, MA

    AIR QUALITY ALERT  

Southeast Middlesex County, MA

Air Quality Alert issued July 1 at 9:16AM EDT by NWS Boston/Norton MA

AIR QUALITY ALERT IN EFFECT UNTIL 11 PM EDT THIS EVENING

Areas Affected: Northern Worcester; Central Middlesex County; Western Essex; Eastern Essex; Western Hampshire; Western Hampden; Eastern Hampshire; Eastern Hampden; Southern Worcester; Western Norfolk; Southeast Middlesex; Suffolk; Eastern Norfolk; Northern Bristol; Western Plymouth; Eastern Plymouth; Southern Bristol; Southern Plymouth; Barnstable; Dukes; Nantucket; Northwest Middlesex County

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Wednesday 9:16am EDT

Alert Effective: Wednesday 9:16am EDT

Alert Expires: Wednesday 11:00pm EDT

Event Onset: Wednesday 9:16am EDT

Issued by: NWS Boston/Norton MA

Details: 
...AIR QUALITY ALERT IN EFFECT UNTIL 11 PM EDT THIS EVENING...

The Massachusetts Department of Environmental Protection has issued
an Air Quality Alert for Ground Level Ozone, until 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.

Air is unhealthy. Everyone may begin to experience health effects,
and sensitive children and adults, such as those with asthma, lung
or heart disease, and older adults, may experience more serious
effects. Everyone should reduce the time spent and intensity of
activities outdoors and take more breaks. Sensitive children and
adults should consider moving indoors or rescheduling outdoor
activities.

For information on how to protect yourself from smoke, visit the
California smoke website: https://tinyurl.com/5cywd5ae.

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

Meta data: 
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Codes: MAZ004, MAZ005, MAZ006, MAZ007, MAZ008, MAZ009, MAZ010, MAZ011, MAZ012, MAZ013, MAZ014, MAZ015, MAZ016, MAZ017, MAZ018, MAZ019, MAZ020, MAZ021, MAZ022, MAZ023, MAZ024, MAZ026
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d03e6cd61231292b75716b6f07c67ccec3321008.003.1