National Weather Service United States Department of Commerce

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

An Air Quality Alert is in effect for portions of northeast Illinois and northwest Indiana through tonight due to unhealthy ozone levels. This may be extended in time depending on whether smoke from Canadian wildfires reaches the area tonight and Thursday. Consider limiting prolonged outdoor activity.
Hot, humid conditions with heat indices near 100° will continue into the weekend. Chances for scattered thunderstorms return later in the week.