Hot and humid conditions will prevail across central and southeast Illinois through Saturday. High temperatures will climb into the middle 90s while afternoon heat index readings will approach 100 degrees both today and Saturday. A cold front will bring temporary relief from the heat by Sunday. If working outside over the next couple of days, be sure to drink plenty of water, wear loose-fitting and light-colored clothing, and take frequent breaks in air-conditioned locations. Be sure to check on those most vulnerable to the heat. including children and the elderly. Provide shade and fresh water for outdoor pets and livestock, and check the backseat of your vehicle when transporting children.

An extended period of hot daytime air temperatures and heat indices will continue today and Saturday. Expect high temperatures in the lower and mid 90s both afternoons, with maximum heat indices in the mid and upper 90s across all of central Indiana. These values may be hazardous, especially for sensitive and vulnerable populations. Take extra precautions if possible, including drinking sufficient non-alcoholic beverages and limiting extended outdoor exposure to the heat in the afternoon to early evening hours.

An extended period of hot and humid conditions will continue across all of Central Indiana through the weekend. Daily high temperatures in the 90s with heat indices approaching 100 degrees may be hazardous for sensitive and vulnerable populations. Take extra precautions if spending time outside during peak heating of the day.

An Air Quality Action Day has been forecast for Northwest Indiana for elevated ozone levels and is IN EFFECT UNTIL MIDNIGHT EDT FRIDAY NIGHT. Ozone Levels are expected to be at unhealthy levels for sensitive groups. For additional information. please visit the IDEM SMOG Watch web site at www.SmogWatch.IN.gov or the EPA AIRNOW web site at www.airnow.gov and click on Indiana.

The officials at the Indiana Department of Environmental Management have declared an Air Quality Action Day, IN EFFECT UNTIL MIDNIGHT EDT FRIDAY NIGHT. An Air Quality Action Day for Ozone has been issued. Ozone levels are expected to be in the Unhealthy for Sensitive Groups range. Active children and adults, and people with respiratory disease, such as asthma should limit prolonged outdoor exposure. Here are some recommended actions that the public can take: * Walk, bike, carpool or use public transportation. * Avoid using the drive-through and combine errands into one trip. * Avoid refueling your vehicle or using gasoline-powered lawn equipment until after 7pm. * Turn off your engine when idling for more than 30 seconds. * Conserve energy by turning off lights or setting the air conditioner to 75 degrees or above. For additional information, please visit the IDEM Smog page at: https://apps.idem.in.gov/smogwatch

An extended period of hot and humid conditions will continue across all of Central Indiana through the weekend. Daily high temperatures in the 90s with heat indices approaching 100 degrees may be hazardous for sensitive and vulnerable populations. Take extra precautions if spending time outside during peak heating of the day.

An extended period of hot and humid conditions will continue across all of Central Indiana through the weekend. Daily high temperatures around or above 90 degrees with heat index values approaching 100 degrees may be hazardous for sensitive and vulnerable populations. Take extra precautions if spending time outside during peak heating of the day.

An extended period of hot and humid conditions continues across all of Central Indiana through the weekend. Daily high temperatures around or above 90 degrees with heat index values approaching 100 degrees may be hazardous for sensitive and vulnerable populations. Take extra precautions if spending time outside during peak heating of the day.