The extreme heat that has lingered over the West for more than a week will push into the Midwest and Northeast by early next week, forecasters said.

The city of Boston on Tuesday issued a heat advisory amid this week’s stretch of dangerous heat and humidity that has gripped Southern New England, sending heat index values soaring into the 90s.The heat advisory will remain in effect from Tuesday through Friday,

Denver hasn't hit a streak of 3 consecutive 100-degree days in three years. The extreme heat is why the CBS News Colorado First Alert Weather team has issued First Alert Weather Days for Friday, Saturday and Sunday.

This isn’t a normal summer weather pattern in Colorado as it is unusual to not only break the 100 degree mark, but to continue that trend for several days. Here's what to expect in Denver.

With a heatwave of 100-degree weather on the horizon, “much of the population” across Colorado’s Eastern Plains and the Denver area will face severe heat risks over the weekend, according to the National Weather Service.

There is a lot of scientific evidence that human-linked climate change is increasing the likelihood of heat waves in Colorado — and increasing the odds for heat events that are more intense and longer-lasting.

The city recommends staying indoors, drinking more water, taking cool showers, and avoiding alcohol and beverages that contain caffeine.