The criteria to issue a heat advisory, excessive heat watch and excessive heat warning is not clear-cut in NJ. Here's maps, ...

We’re keeping an eye on the Excessive Heat Warning for Wednesday and Thursday, with highs expected between 108–110° in Las Vegas.

Tuesday is another hot day. Although temperatures will be slightly lower than Monday, they are above normal. The heat will increase 5 to 10 degrees on Wednesday and Thursday and kick off an excessive ...

The average first 110-degree day in Phoenix falls on June 11, but has come as early as May 8 in 1989. A June heat wave is a ...

For the first time in recorded history, a heat advisory was issued for several communities in the Alaska interior. For ...

Temperatures in the Inland Northwest continue to get warmer into Monday with highs into the 90s and warmer areas pushing into ...

Scorching temperatures are on the way to Colorado later this week, with highs expected in the mid to upper 90s by the weekend, even exceeding 100 in some places.

Tucson will be under an extreme heat warning Thursday. High temperatures could reach 115 degrees, just under the all time ...