Lexington Weather

Lexington, Massachusetts, USA

81°F
7/13/2026 6:39pm 
  • Lexington Conditions: Partly cloudy
  • Temperature: 80.8°F / 27.1°CColder 2.0°F than last hour.
  • Dew Point: 68.4°FDecreased 0.5°Fsince last hour.
  • Feels Like: 83.7°F
  • Relative Humidity: 66%Increased 3.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 8 mph
  • Barometer: 30.01 inRising 0.02 inHg/hr Rising Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   
Southeast Middlesex County, MA - Heat Advisory
 - SEE ALL NEARBY ALERTS -

Watches, Warnings, and Advisories

Issued by the National Weather Service - Denver/Boulder, CO

    AIR QUALITY ALERT  

Adams County, CO

Air Quality Alert issued July 13 at 4:10PM MDT by NWS Denver CO

OZONE ACTION DAY ALERT FROM 400 PM MONDAY UNTIL 400 PM TUESDAY

Areas Affected: Larimer, CO; Denver, CO; Douglas, CO; Jefferson, CO; Adams, CO; Broomfield, CO; Arapahoe, CO; Weld, CO; Boulder, CO

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Monday 4:11pm MDT

Alert Effective: Monday 4:10pm MDT

Alert Expires: Tuesday 4:00pm MDT

Event Onset: Monday 4:10pm MDT

Issued by: NWS Denver CO

Details: 
...OZONE ACTION DAY ALERT FROM 400 PM MONDAY UNTIL 400 PM TUESDAY...

The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Ozone Action Day Alert.

WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties

WHEN...400 PM Monday July 13 to 400 PM Tuesday July 14

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Ozone concentrations in the Unhealthy for
Sensitive Groups category are expected during the afternoon and
evening hours on both Monday and Tuesday. The highest ozone
concentrations are expected within and near the foothills from
western parts of the Denver metro area northward to areas west of
Ft. Collins.  For Colorado air quality conditions, forecasts, and
advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx   If
possible, please help us reduce ozone pollution by limiting
driving gas and diesel-powered vehicles until at least 4 p.m.
Tuesday, July 14, 2026. Colorado is also addressing ozone
pollution through state policies. For more information about
health impacts and how ozone pollution forms in Colorado, visit:
https://cdphe.colorado.gov/ozone- pollution-and-your-health

HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.fb7a174f4e8364d3798ccaa2fdfda31a42db1f2e.001.1
Codes: COC069, COC031, COC035, COC059, COC001, COC014, COC005, COC123, COC013
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.fb7a174f4e8364d3798ccaa2fdfda31a42db1f2e.001.1