Lexington Weather

Lexington, Massachusetts, USA

78°F
7/15/2026 5:34am 
  • Lexington Conditions: Partly cloudy
  • Temperature: 77.7°F / 25.4°CWarmer 0.2°F than last hour.
  • Dew Point: 71.1°FIncreased 0.2°Fsince last hour.
  • Relative Humidity: 80% 
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.67 inRising 0.02 inHg/hr Rising Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Extreme Heat Warning

Issued by the National Weather Service - Los Angeles, CA

    EXTREME HEAT WARNING  

Santa Clarita Valley, CA; Los Angeles County Inland Coast including Downtown Los Angeles, CA; Western San Fernando Valley, CA; Eastern San Fernando Valley, CA; Santa Susana Mountains, CA; Los Angeles County San Gabriel Valley, CA

Extreme Heat Warning issued July 14 at 10:20AM PDT until July 16 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY

Areas Affected: Santa Clarita Valley; Los Angeles County Inland Coast including Downtown Los Angeles; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Los Angeles County San Gabriel Valley

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Tuesday 10:20am PDT

Alert Effective: Tuesday 10:20am PDT

Alert Expires: Thursday 8:00pm PDT

Event Onset: Tuesday 10:20am PDT

Event Ends: Thursday 8:00pm PDT

Issued by: NWS Los Angeles/Oxnard CA

Details: 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY...

* WHAT...Temperatures of 90 to 110 degrees, hottest on Wednesday and
over interior areas.

* WHERE...Eastern San Fernando Valley, Los Angeles County Inland
Coast including Downtown Los Angeles, Los Angeles County San
Gabriel Valley, Santa Clarita Valley, Santa Susana Mountains, and
Western San Fernando Valley.

* WHEN...Until 8 PM PDT Thursday.

* IMPACTS...There is a high risk for dangerous heat illness for
anyone, especially for the very young, the very old, those without
air conditioning, and those active outdoors.

* ADDITIONAL DETAILS...Humid conditions will add to the heat to
potentially worsen heat impacts. Effects of the heat will build
through the week, with warm overnight low temperatures providing
little relief from the heat.

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.

Stay cool, stay hydrated, stay informed.

Monitor the latest forecasts and warnings for updates.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.0fc4fba2656ea64f5872ec18d924e51cc0b6cd6d.002.2
Codes: CAZ088, CAZ368, CAZ372, CAZ373, CAZ375, CAZ548
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0fc4fba2656ea64f5872ec18d924e51cc0b6cd6d.002.2