Here’s your July to September outlook

The rest of summer looks to be hot in parts of the U.S., cooler than average in others, and potentially much wetter than usual in a typically dry location.

Here are the highlights:

• Parts of the Northwest and northern Rockies are expected to have a much hotter than average July and August, with at least some heat lingering into September.
  
• Parts of Texas are also expected to be hotter than average, especially in July and September.
  
• Much of the Florida Peninsula could also have a hotter than usual July.
  
• The Great Lakes and Northeast may have a somewhat cooler than average late summer.
  
• The Southwest monsoon, basically their season of summer thunderstorms, is expected to be wetter than usual.
  
• The Ohio Valley may be wetter than usual in late summer.
  

Here are the monthly temperature maps:

There is one big forecast factor

The forecast released Sunday by Atmospheric G2 and The Weather Company has the fingerprints of an intensifying El Niño all over it.

This potential historic El Niño could be similar to those in 1997 and 2015, if not stronger, according to Todd Crawford, Vice President of Meteorology at Atmospheric G2 and chief author of the outlook.

"This typically means less hot summers," wrote Crawford.

You can see this imprinted on the three-month forecast with a large chunk of the country expected to see just slightly above average, or relatively mild, conditions.

Aside from El Niño, Crawford also noted the historically warm water in the Pacific Ocean near Mexico's Baja Peninsula and Southern California.

"This will add extra water vapor and enhance rainfall amounts during the monsoon in the Southwest U.S.," Crawford wrote.