Lexington Weather

Lexington, Massachusetts, USA

79°F
6/28/2026 3:31pm 
  • Lexington Conditions: Partly cloudy
  • Temperature: 78.6°F / 25.9°CWarmer 2.5°F than last hour.
  • Dew Point: 68.0°FIncreased 0.4°Fsince last hour.
  • Relative Humidity: 70%Decreased 5.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 29.92 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   
Southeast Middlesex County, MA - Extreme Heat Watch
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Extreme Heat Watch

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

    EXTREME HEAT WATCH  

Central Middlesex County, MA; Southeast Middlesex County, MA; Western Franklin, MA; Eastern Franklin, 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

Extreme Heat Watch issued June 28 at 1:29PM EDT until July 3 at 8:00PM EDT by NWS Boston/Norton MA

EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING

Areas Affected: Hartford; Tolland; Windham; Western Franklin; Eastern Franklin; 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; Northwest Middlesex County; Northwest Providence; Southeast Providence; Western Kent; Eastern Kent; Bristol; Washington; Newport

Urgency: Future

Severity: Severe

Certainty: Likely

Alert Sent: Sunday 1:29pm EDT

Alert Effective: Sunday 1:29pm EDT

Alert Expires: Monday 8:00am EDT (expect updated alert by this time)

Event Onset: Wednesday 10:00am EDT

Event Ends: Friday 8:00pm EDT

Issued by: NWS Boston/Norton MA

Details: 
...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions with heat index values up to 110
possible.

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

* WHEN...From Wednesday morning through Friday evening.

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

Information: 
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.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.877f6bdcec097685dc862edebd2db294a0b93ff8.001.1
Codes: MAZ002, MAZ003, MAZ004, MAZ005, MAZ006, MAZ007, MAZ008, MAZ009, MAZ010, MAZ011, MAZ012, MAZ013, MAZ014, MAZ015, MAZ016, MAZ017, MAZ018, MAZ019, MAZ020, MAZ021, MAZ026
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.877f6bdcec097685dc862edebd2db294a0b93ff8.001.1