Lexington Weather

Lexington, Massachusetts, USA

78°F
7/13/2026 9:07pm 
  • Lexington Conditions: Clear
  • Temperature: 78.1°F / 25.6°CColder 1.2°F than last hour.
  • Dew Point: 65.8°FIncreased 0.1°Fsince last hour.
  • Relative Humidity: 66%Increased 3.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 30.01 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   
Southeast Middlesex County, MA - Heat Advisory
 - SEE ALL NEARBY ALERTS -

Extreme Heat Warning

Issued by the National Weather Service - Aberdeen, SD

    EXTREME HEAT WARNING  

Corson, SD; Campbell, SD; Walworth, SD; Dewey, SD; Potter, SD

Extreme Heat Warning issued July 13 at 3:44PM CDT until July 16 at 10:00PM CDT by NWS Aberdeen SD

EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THURSDAY

Areas Affected: Corson; Campbell; Walworth; Dewey; Potter

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Monday 3:44pm CDT

Alert Effective: Monday 3:44pm CDT

Alert Expires: Tuesday 5:00am CDT (expect updated alert by this time)

Event Onset: Monday 3:44pm CDT

Event Ends: Thursday 10:00pm CDT

Issued by: NWS Aberdeen SD

Details: 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THURSDAY...

* WHAT...Prolonged dangerously hot conditions with heat index values
up to 105 each afternoon.

* WHERE...Campbell, Corson, Dewey, Potter, and Walworth Counties.

* WHEN...Until 10 PM CDT /9 PM MDT/ Thursday.

* 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.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

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! Call 9 1 1.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.b3072df94204f35ed1ae00853fe3584d0eac3557.001.1
Codes: SDZ003, SDZ004, SDZ009, SDZ015, SDZ016
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b3072df94204f35ed1ae00853fe3584d0eac3557.001.1