Lexington Weather

Lexington, Massachusetts, USA

79°F
7/14/2026 11:59pm 
  • Lexington Conditions: Clear
  • Temperature: 79.3°F / 26.3°CColder 1.5°F than last hour.
  • Dew Point: 71.4°FDecreased 0.4°Fsince last hour.
  • Relative Humidity: 77%Increased 3.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 6 mph
  • Barometer: 29.71 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

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

    AIR QUALITY ALERT  

Larimer County, CO


Air Quality Alert issued July 14 at 9:10PM MDT by NWS Denver CO

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


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

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Tuesday 9:10pm MDT

Alert Effective: Tuesday 9:10pm MDT

Alert Expires: Wednesday 4:00pm MDT

Event Onset: Tuesday 9:10pm MDT

Issued by: NWS Denver CO


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

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 Tuesday July 14 to 400 PM Wednesday July 15

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Sunny, hot, and stagnant weather will allow
ozone to reach the Unhealthy for Sensitive Groups category on
Tuesday and Wednesday. 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.
Wednesday, July 15, 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:2.49.0.1.840.0.10585926e626f8342bfe25363bd3f4cf2a31230a.001.1
Codes: COC013, COC005, COC031, COC059, COC123, COC001, COC069, COC014, COC035
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.10585926e626f8342bfe25363bd3f4cf2a31230a.001.1

 

    AIR QUALITY ALERT  

Larimer County, CO


Air Quality Alert issued July 14 at 4:10PM MDT by NWS Denver CO

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


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

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Tuesday 4:10pm MDT

Alert Effective: Tuesday 4:10pm MDT

Alert Expires: Wednesday 4:00pm MDT

Event Onset: Tuesday 4:10pm MDT

Issued by: NWS Denver CO


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

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 Tuesday July 14 to 400 PM Wednesday July 15

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Sunny, hot, and stagnant weather will allow
ozone to reach the Unhealthy for Sensitive Groups category on
Tuesday and Wednesday. 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.
Wednesday, July 15, 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.a38c757c077a5e16409120dcb03ef62b2902f1b5.001.1
Codes: COC059, COC069, COC001, COC035, COC013, COC123, COC031, COC014, COC005
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a38c757c077a5e16409120dcb03ef62b2902f1b5.001.1