Lexington Weather

Lexington, Massachusetts, USA

76°F
9/9/2026 1:41pm 
  • Lexington Conditions: Clear
  • Temperature: 75.9°F / 24.4°CWarmer 3.0°F than last hour.
  • Dew Point: 64.6°FIncreased 1.3°Fsince last hour.
  • Relative Humidity: 68%Decreased 4.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 30.10 inFalling 0.03 inHg/hr Falling Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Extreme Heat Warning

Issued by the National Weather Service - Las Vegas, NV

    EXTREME HEAT WARNING  

Extreme Heat Warning issued September 9 at 4:24AM PDT until September 10 at 8:00PM PDT by NWS Las Vegas NV

EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM PDT /10 AM MST/ TO 8 PM PDT /8 PM MST/ THURSDAY

Areas Affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Lake Mead - NV side; Lake Mohave - NV side

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Wednesday 4:24am PDT

Alert Effective: Wednesday 4:24am PDT

Alert Expires: Wednesday 3:00pm PDT (expect updated alert by this time)

Event Onset: Thursday 10:00am PDT

Event Ends: Thursday 8:00pm PDT

Issued by: NWS Las Vegas NV

Details: 
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM PDT /10 AM MST/ TO 8 PM PDT /8 PM MST/ THURSDAY...

* WHAT...Dangerously hot late-season conditions expected with high
temperatures up to 112 to 116 in Death Valley and the Colorado
River Valley; up to 105 to 110 in the Las Vegas Valley, Moapa
Valley, and Pahrump Valley.

* WHERE...Portions of northwest Arizona, southeast California, and
southern Nevada.

* WHEN...From 10 AM PDT /10 AM MST/ to 8 PM PDT /8 PM MST/ Thursday.

* IMPACTS...Heat-related illnesses increase significantly during
extreme 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.

Monitor the latest forecasts and warnings for updates.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.5040fe6dd4902c8d8f7ac33c142bf9a3c96a224a.001.1
Codes: AZZ002, AZZ570, AZZ571, AZZ576, CAZ522, CAZ526, CAZ527, NVZ016, NVZ017, NVZ020, NVZ025, NVZ026
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.5040fe6dd4902c8d8f7ac33c142bf9a3c96a224a.001.1