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WHAT: High temperatures between 98-102 expected on Sunday and Monday. Low temperatures Sunday night will be between 68-71 in the Denver metro.
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WHERE: Fort Collins, Boulder, the Denver metro, and Greeley.
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WHEN: From 10 AM Sunday to 9 PM MDT Monday.
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IMPACTS: Hot temperatures may cause heat illnesses.
* WHAT...High temperatures between 98-102 expected on Sunday and Monday. Low temperatures Sunday night will be between 68-71 in the Denver metro. * WHERE...Fort Collins, Boulder, the Denver metro, and Greeley. * WHEN...From 10 AM Sunday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses.
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. 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.
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 Saturday July 18 to 400 PM Sunday July 19
IMPACTS,Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Hot and sunny weather will allow ozone to reach levels that are Unhealthy for Sensitive Groups on Saturday and Sunday. The highest concentrations are most likely in western portions of the northern Colorado Front Range region. 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. Sunday, July 19, 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 in sensitive individuals, aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults. People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
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 Saturday July 18 to 400 PM Sunday July 19 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Hot and sunny weather will allow ozone to reach levels that are Unhealthy for Sensitive Groups on Saturday and Sunday. The highest concentrations are most likely in western portions of the northern Colorado Front Range region. 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. Sunday, July 19, 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 in sensitive individuals, aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults. People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
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