Lexington Weather

Lexington, Massachusetts, USA

78°F
9/9/2026 3:29pm 
  • Lexington Conditions: Partly cloudy
  • Temperature: 78.3°F / 25.7°CWarmer 0.6°F than last hour.
  • Dew Point: 63.7°FDecreased 1.2°Fsince last hour.
  • Relative Humidity: 61%Decreased 4.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 6 mph
  • Barometer: 30.04 inFalling 0.03 inHg/hr Falling Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service - San Diego, CA

    EXTREME HEAT WARNING  

Extreme Heat Warning issued September 9 at 2:58AM PDT until September 9 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM PDT THURSDAY

Areas Affected: San Diego County Coastal Areas; Orange County Coastal

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Wednesday 2:58am PDT

Alert Effective: Wednesday 2:58am PDT

Alert Expires: Wednesday 3:30pm PDT (expect updated alert by this time)

Event Onset: Wednesday 2:58am PDT

Event Ends: Wednesday 8:00pm PDT

Issued by: NWS San Diego CA

Details: 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM PDT THURSDAY...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with high temperatures in the mid 80s to lower 90s at the beaches
to around 100 higher coastal terrain with low temperatures in the
lower to mid 70s. For the Heat Advisory, high temperatures in the
80s and lower 90s.

* WHERE...Orange County Coastal Areas and San Diego County Coastal
Areas.

* WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening.
For the Heat Advisory, from 8 PM this evening to 8 PM PDT Thursday.

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

* ADDITIONAL DETAILS...Major to Extreme HeatRisk through today. Warm
overnight low temperature will limit 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.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.e5db6b8d9fc05dff1d95522368b5a7b8c0290140.001.1
Codes: CAZ043, CAZ552
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e5db6b8d9fc05dff1d95522368b5a7b8c0290140.001.1

 

    HEAT ADVISORY  

Heat Advisory issued September 9 at 2:58AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM PDT THURSDAY

Areas Affected: San Diego County Coastal Areas; Orange County Coastal

Urgency: Expected

Severity: Moderate

Certainty: Likely

Alert Sent: Wednesday 2:58am PDT

Alert Effective: Wednesday 2:58am PDT

Alert Expires: Wednesday 3:30pm PDT (expect updated alert by this time)

Event Onset: Wednesday 8:00pm PDT

Event Ends: Thursday 8:00pm PDT

Issued by: NWS San Diego CA

Details: 
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM PDT THURSDAY...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with high temperatures in the mid 80s to lower 90s at the beaches
to around 100 higher coastal terrain with low temperatures in the
lower to mid 70s. For the Heat Advisory, high temperatures in the
80s and lower 90s.

* WHERE...Orange County Coastal Areas and San Diego County Coastal
Areas.

* WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening.
For the Heat Advisory, from 8 PM this evening to 8 PM PDT Thursday.

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

* ADDITIONAL DETAILS...Major to Extreme HeatRisk through today. Warm
overnight low temperature will limit 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.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.e5db6b8d9fc05dff1d95522368b5a7b8c0290140.001.2
Codes: CAZ043, CAZ552
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e5db6b8d9fc05dff1d95522368b5a7b8c0290140.001.2

 

    COASTAL FLOOD ADVISORY  

Coastal Flood Advisory issued September 9 at 1:30AM PDT until September 9 at 11:00PM PDT by NWS San Diego CA

COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING

Areas Affected: San Diego County Coastal Areas; Orange County Coastal

Urgency: Expected

Severity: Minor

Certainty: Likely

Alert Sent: Wednesday 1:30am PDT

Alert Effective: Wednesday 1:30am PDT

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

Event Onset: Wednesday 1:30am PDT

Event Ends: Wednesday 11:00pm PDT

Issued by: NWS San Diego CA

Details: 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING...

* WHAT...Minor coastal flooding from high tides this evening.

* WHERE...Beaches of Orange and San Diego Counties.

* WHEN...Until 11 PM PDT.

* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected. Most likely during Wednesday
evening's high tide.

* ADDITIONAL DETAILS...High tides this evening at Newport Beach: 6.3
feet at 845 PM. At La Jolla: 6.3 feet at 839 PM. Measured high
tides are exceeding predicted levels by 6-7 inches.

Information: 
High tides could generate flooding of low areas along the shore.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.5eea8aff06442ad9ea3badb6951823f44534d258.001.1
Codes: CAZ043, CAZ552
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.5eea8aff06442ad9ea3badb6951823f44534d258.001.1