National Weather Service United States Department of Commerce

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

High pressure will start building in overnight and cause clouds to decrease.  This decrease in cloud cover, along with the colder air from yesterday's cold front, will cause temperatures to drop below freezing tonight.  Almost the entire forecast area will wake up to temperatures below 32F.  However, a quick warm-up is in store with high temperatures rebounding to the 60s for a lot of valleys. The weather looks fairly benign through much of the week with the next chance for any significant precipitation on Thursday.