* WHAT. High temperatures both Monday and Tuesday will be up to 98 degrees. Overnight lows will be in the mid to upper 60s. * WHERE. metropolitan Denver. * WHEN. From 11 AM Monday to 9 PM MDT Tuesday. * IMPACTS. Hot temperatures may cause heat illnesses.

* WHAT. High temperatures both Monday and Tuesday will be in the mid to upper 90s. Overnight lows will be in the mid to upper 60s. * WHERE. Metropolitan Denver. * WHEN. From 11 AM Monday to 9 PM MDT Tuesday. * IMPACTS. Hot temperatures may cause heat illnesses.

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 June 22 to 400 PM Sunday June 23 IMPACTS. Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Request to limit driving gas and diesel- powered vehicles is now in effect until at least 4 p.m. Sunday, June 23, 2024. Increased concentrations of ozone continue to be of concern on Saturday and Sunday. Ozone concentrations in the Unhealthy for Sensitive Groups category are most likely for locations in and near the Denver Metro area, particularly in locations to the south and west, including the foothills. For areas included in this advisory that are not expected to reach the Unhealthy for Sensitive Groups (USG) air quality designation, we request that activities, such as driving non-ZEV vehicles (i.e., gas or diesel), be reduced to lessen the impacts on neighboring air quality. Additional air pollution in this region may directly worsen air quality or contribute to precursors which may also adversely affect air quality. For Colorado air quality conditions, forecasts and advisories, visit: https://www.colorado.gov/airquality/colorado_summary.aspx 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.