Lexington Weather

Lexington, Massachusetts, USA

76°F
7/13/2026 10:34pm 
  • Lexington Conditions: Clear
  • Temperature: 76.1°F / 24.5°CColder 1.4°F than last hour.
  • Dew Point: 64.8°FDecreased 0.9°Fsince last hour.
  • Relative Humidity: 68%Increased 1.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 2 mph
  • Barometer: 30.01 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   
Southeast Middlesex County, MA - Heat Advisory
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Heat Advisory

Issued by the National Weather Service - New York, NY

    HEAT ADVISORY  

Northwest Suffolk, NY

Heat Advisory issued July 13 at 2:20PM EDT until July 15 at 9:00PM EDT by NWS Upton NY

HEAT ADVISORY NOW IN EFFECT FROM 11 AM TO 9 PM EDT WEDNESDAY

Areas Affected: Northwest Suffolk

Urgency: Expected

Severity: Moderate

Certainty: Likely

Alert Sent: Monday 2:20pm EDT

Alert Effective: Monday 2:20pm EDT

Alert Expires: Tuesday 11:15am EDT (expect updated alert by this time)

Event Onset: Wednesday 11:00am EDT

Event Ends: Wednesday 9:00pm EDT

Issued by: NWS Upton NY

Details: 
...HEAT ADVISORY NOW IN EFFECT FROM 11 AM TO 9 PM EDT WEDNESDAY...

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

* WHERE...Northwest Suffolk County.

* WHEN...From 11 AM to 9 PM EDT Wednesday.

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

Information: 
A Heat Advisory is issued when the combination of heat and humidity
is expected to make it feel like it is 95 to 99 degrees for two or
more consecutive days, or 100 to 104 degrees for any length of time.

Seniors and those with chronic health problems or mental health
conditions are at an increased risk. Homes without air conditioning
can be much hotter than outdoor temperatures.

Use air conditioning to stay cool at home or go to a place that has
air conditioning. If you don't have home air conditioning, continue
to seek out cool spaces each day as long as it remains hot, and for
a few days after if your home is still hot. Check on vulnerable
friends, family members and neighbors.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! In cases of heat stroke call 9 1 1.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.b27bb4762f5b90332a6120d4434e352fd76f0b9b.004.1
Codes: NYZ078
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b27bb4762f5b90332a6120d4434e352fd76f0b9b.004.1