* WHAT...Hot temperatures ranging from 98 to 102 degrees.

* WHERE...Denver metro, western suburbs of Denver, and portions of
the Urban Corridor including Boulder.

* WHEN...From 11 AM this morning to 8 PM MDT Sunday.

* IMPACTS...Hot temperatures may cause heat illness.

WWUS75 KBOU 080951
NPWBOU

Heat Advisory
National Weather Service Denver CO
351 AM MDT Sat Aug 8 2026
COZ038>040
/O.CON.KBOU.HT.Y.0006.260808T1700Z-260810T0200Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County-North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT SUNDAY...

* WHAT...Hot temperatures ranging from 98 to 102 degrees.

* WHERE...Denver metro, western suburbs of Denver, and portions of
the Urban Corridor including Boulder.

* WHEN...From 11 AM this morning to 8 PM MDT Sunday.

* IMPACTS...Hot temperatures may cause heat illness.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

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.

HEAT ADVISORY

Heat Advisory issued August 8 at 3:51AM MDT until August 9 at 8:00PM MDT by NWS Denver CO

larimer county below 6000 feet/northwest weld county

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

WHAT...Action Day for Multiple Pollutants.

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

WHEN...400 PM Thursday August 06 to 400 PM Friday August 07

IMPACTS...Action Day for Multiple Pollutants is now in effect for
the Front Range Urban Corridor.  Ozone is expected to be in the
Moderate to Unhealthy for Sensitive Groups range on Thursday and
Friday. The highest concentrations of ozone are most likely in the
southern and western portions of the Denver Metro area. Fine
particulate concentrations are expected to be in the Moderate to
Unhealthy for Sensitive Groups range on Thursday and Friday.  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.
Friday, August 7, 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.

AEUS75 KBOU 071510
AQABOU

Air Quality Alert
National Weather Service Denver CO
910 AM MDT Fri Aug 7 2026
COC001-005-013-014-031-035-059-069-123
Larimer, CO-Douglas, CO-Broomfield, CO-Denver, CO-Boulder, CO-Arapahoe, CO-Jefferson, CO-Adams, CO-Weld, CO

...ACTION DAY FOR MULTIPLE POLLUTANTS FROM 400 PM THURSDAY UNTIL 400 PM FRIDAY...

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

WHAT...Action Day for Multiple Pollutants.

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

WHEN...400 PM Thursday August 06 to 400 PM Friday August 07

IMPACTS...Action Day for Multiple Pollutants is now in effect for
the Front Range Urban Corridor.  Ozone is expected to be in the
Moderate to Unhealthy for Sensitive Groups range on Thursday and
Friday. The highest concentrations of ozone are most likely in the
southern and western portions of the Denver Metro area. Fine
particulate concentrations are expected to be in the Moderate to
Unhealthy for Sensitive Groups range on Thursday and Friday.  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.
Friday, August 7, 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.

Local Weather

Niwot, Colorado, US