Lexington Weather

Lexington, Massachusetts, USA

75°F
7/13/2026 11:45pm 
  • Lexington Conditions: Clear
  • Temperature: 74.5°F / 23.6°CColder 1.2°F than last hour.
  • Dew Point: 62.8°FDecreased 1.2°Fsince last hour.
  • Relative Humidity: 67% 
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 29.99 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   
Southeast Middlesex County, MA - Heat Advisory
 - SEE ALL NEARBY ALERTS -

Watches, Warnings, and Advisories

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

    HEAT ADVISORY  

Northern Bristol, MA

Heat Advisory issued July 13 at 2:13PM EDT until July 15 at 8:00PM EDT by NWS Boston/Norton MA

HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TUESDAY TO 8 PM EDT WEDNESDAY

Areas Affected: Hartford; Tolland; Windham; Eastern Franklin; Northern Worcester; Central Middlesex County; Western Essex; Eastern Essex; Eastern Hampshire; Eastern Hampden; Southern Worcester; Western Norfolk; Southeast Middlesex; Suffolk; Eastern Norfolk; Northern Bristol; Western Plymouth; Eastern Plymouth; Southern Bristol; Southern Plymouth; Northwest Middlesex County; Northwest Providence; Southeast Providence; Western Kent; Eastern Kent; Bristol; Washington; Newport

Urgency: Expected

Severity: Moderate

Certainty: Likely

Alert Sent: Monday 2:13pm EDT

Alert Effective: Monday 2:13pm EDT

Alert Expires: Tuesday 6:00am EDT (expect updated alert by this time)

Event Onset: Tuesday 11:00am EDT

Event Ends: Wednesday 8:00pm EDT

Issued by: NWS Boston/Norton MA

Details: 
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TUESDAY TO 8 PM EDT WEDNESDAY...

* WHAT...Heat index values up to 102 expected.

* WHERE...Portions of northern Connecticut, central, eastern,
northeastern, southeastern, and western Massachusetts, and Rhode
Island.

* WHEN...From 11 AM Tuesday to 8 PM EDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

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

Meta data: 
ID: urn:oid:2.49.0.1.840.0.474e794070480233248a4f8e77ed1b82b410c251.001.1
Codes: CTZ002, CTZ003, CTZ004, MAZ003, MAZ004, MAZ005, MAZ006, MAZ007, MAZ010, MAZ011, MAZ012, MAZ013, MAZ014, MAZ015, MAZ016, MAZ017, MAZ018, MAZ019, MAZ020, MAZ021, MAZ026, RIZ001, RIZ002, RIZ003, RIZ004, RIZ005, RIZ006, RIZ007
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.474e794070480233248a4f8e77ed1b82b410c251.001.1

 

    AIR QUALITY ALERT  

Northern Bristol, MA

Air Quality Alert issued July 13 at 3:31PM EDT by NWS Boston/Norton MA

AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT TUESDAY

Areas Affected: Northern Bristol; Western Plymouth; Eastern Plymouth; Southern Bristol; Southern Plymouth; Barnstable; Dukes; Nantucket

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Monday 3:31pm EDT

Alert Effective: Monday 3:31pm EDT

Alert Expires: Tuesday 3:45pm EDT

Event Onset: Monday 3:31pm EDT

Issued by: NWS Boston/Norton MA

Details: 
...AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT TUESDAY...

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

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:2.49.0.1.840.0.0b6701d8d453b694e92ee597507a3624150f30d0.001.1
Codes: MAZ017, MAZ018, MAZ019, MAZ020, MAZ021, MAZ022, MAZ023, MAZ024
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0b6701d8d453b694e92ee597507a3624150f30d0.001.1