Active Weather Alerts
Heat Advisory
Issued: 1:08 AM Jul. 20, 2026 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY... * WHAT...Peak heat index values between 100 to 105 expected. * WHERE...Portions of west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...From noon to 8 PM CDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...A round of scattered showers and thunderstorms is possible Monday morning into the early afternoon, mainly for counties along and north of I-80. The rain and lingering cloud cover could hold peak heat indices lower than currently forecast for areas north of I-80. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. &&
Air Quality Alert
Issued: 5:13 PM Jul. 19, 2026 – National Weather Service
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT MONDAY NIGHT... The Illinois Environmental Protection Agency has issued an Areawide Air Pollution Action Day for Monday July 20th for portions of Illinois. This is in addition to the ongoing Areawide Air Pollution Action Day in effect today July 19th for the same areas. An Areawide Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate levels are forecast to be at OR ABOVE the Unhealthy for Sensitive Groups (USG) category in all or nearly all Illinois AQI forecast sectors. Areas both inside and outside of the Action Day coverage area are likely to see smoke/PM2.5 to a varying degree and duration today and Monday with smoke likely decreasing from southwest to northeast through the day Monday. Those with air quality concerns or anyone in Illinois with outdoor plans are encouraged to check current NowCast readings or sign up for EnviroFlash alerts on AirNow. gov. Before going outside, checking the NowCast AQI will help identify periods of both poor and cleaner air quality regardless of the level of the daily 24-hour AQI forecast. AQI Category Guidance Unhealthy for Sensitive Groups (USG) - Members of sensitive groups may experience health effects. The general public is less likely to be affected. Sensitive groups: Make outdoor activities shorter and less intense. It’s OK to be active outdoors, but take more breaks. Watch for symptoms such as coughing or shortness of breath. People with asthma: Follow your asthma action plan and keep quick relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Unhealthy - Sensitive groups: Avoid long or intense outdoor activities. Consider rescheduling or moving activities indoors. Everyone else: Reduce long or intense activities. Take more breaks during outdoor activities. Air quality forecasts and current air quality can be found at www.airnow.gov Media Contact... Illinois EPA
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