Extreme temperatures, mostly in the mid/the high 90s, are expected for the first half of July for much of the U.S., reported The Weather Channel. These hotter-than-usual temperatures have already begun this week and will bake a significant part of the country this holiday weekend, with elevated temperatures forecasted through the midpoint of the month. Current weather models show a heat dome is expected for much of the country: A broad ridge of high pressure and a jet stream that will remain well to the north will allow heat to spread across large sections of the Plains, Midwest, Northeast, and Rockies. This pattern ... (full story)