A dangerous heat wave is in the forecast across the Midwest and Northeast, so everyone needs a plan on how to stay cool. The heat and humidity will start to build across the Midwest this weekend, peaking in the Northeast early next week. Dozens of daily records will be in jeopardy, especially in the Northeast, as high temperatures climb into the mid to upper 90s for several days in a row. Feels-like temperatures will be in the triple digits for many as humidity levels climb into the uncomfortable range.