Lexington Weather

Lexington, Massachusetts, USA

78°F
7/12/2026 7:01pm 
  • Lexington Conditions: Clear
  • Temperature: 77.5°F / 25.3°CColder 0.8°F than last hour.
  • Dew Point: 56.3°FDecreased 0.7°Fsince last hour.
  • Relative Humidity: 48% 
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 30.12 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service - Salt Lake City, UT

    EXTREME HEAT WARNING  

Sevier Valley, UT

Extreme Heat Warning issued July 12 at 10:49AM MDT until July 14 at 6:00AM MDT by NWS Salt Lake City UT

EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY

Areas Affected: Great Salt Lake Desert and Mountains; Tooele and Rush Valleys; Eastern Box Elder County; Northern Wasatch Front; Salt Lake Valley; Utah Valley; Cache Valley/Utah Portion; Wasatch Back; Western Uinta Basin; Eastern Juab/Millard Counties; Sanpete Valley; Sevier Valley; Castle Country; San Rafael Swell

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Sunday 10:49am MDT

Alert Effective: Sunday 10:49am MDT

Alert Expires: Monday 2:00am MDT (expect updated alert by this time)

Event Onset: Sunday 10:49am MDT

Event Ends: Tuesday 6:00am MDT

Issued by: NWS Salt Lake City UT

Details: 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY...

* WHAT...Dangerously hot conditions with temperatures up to 107
possible for the valleys of northern Utah, including the Wasatch
Front and Cache Valley. Highs around 100 possible for the mountain
valleys of northern and central Utah, including the Wasatch Back,
along Castle Country, the Uinta Basin, and the San Rafael Swell.

* WHERE...Portions of central and northern Utah.

* WHEN...Until 6 AM MDT Tuesday.

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

* ADDITIONAL DETAILS...There is high confidence that temperatures
will warm to values challenging daily, monthly, or even all-time
high temperature records Sunday through Monday. Overnight lows in
the lower to mid 70s for many valley locations will provide little
in the way of overnight relief.

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.aebcdeafb6344119106005c044ec94428acb82cb.001.1
Codes: UTZ101, UTZ102, UTZ103, UTZ104, UTZ105, UTZ106, UTZ107, UTZ108, UTZ114, UTZ116, UTZ118, UTZ119, UTZ120, UTZ121
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.aebcdeafb6344119106005c044ec94428acb82cb.001.1