Lexington Weather

Lexington, Massachusetts, USA

92°F
7/1/2026 3:31pm 
  • Lexington Conditions: Few Clouds
  • Temperature: 91.6°F / 33.1°CWarmer 0.2°F than last hour.
  • Dew Point: 72.5°FIncreased 0.2°Fsince last hour.
  • Feels Like: 99.9°F
  • Relative Humidity: 54% 
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 29.84 inFalling 0.02 inHg/hr Falling Slowly
  • 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 -

Air Quality Alert

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

    AIR QUALITY ALERT  

Central Middlesex County, MA; Southeast Middlesex County, MA; Barnstable, MA; Dukes, MA; Northern Worcester, MA; Western Essex, MA; Eastern Essex, MA; Western Hampshire, MA; Western Hampden, MA; Eastern Hampshire, MA; Eastern Hampden, MA; Southern Worcester, MA; Western Norfolk, 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; Nantucket, MA

Air Quality Alert issued July 1 at 10:04AM 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 10:04am EDT

Alert Effective: Wednesday 10:04am EDT

Alert Expires: Wednesday 11:00pm EDT

Event Onset: Wednesday 10:04am 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 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

Meta data: 
ID: urn:oid:2.49.0.1.840.0.07dbdf4e1392ab0035aaea93eb72231967e2bd37.003.1
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:2.49.0.1.840.0.07dbdf4e1392ab0035aaea93eb72231967e2bd37.003.1