As a heat wave hits multiple U.S. states, some areas are have been placed under extreme heat watches and warnings.

With New York under an extreme heat warning, the Mets took extra precautions Monday. Those included a later report time for players and shorter rounds of batting practice before the series opener against the Atlanta Braves at Citi Field.

Extreme heat and humidity continue today with highs in the upper 90s. Expect feels like temperatures 105° to 110°.

Environment Canada lifted its heat warning, which was expected to last until Tuesday night, around 2 a.m. on Wednesday morning — ahead of a bout of rain expected to hit the city starting Thursday.

(Reuters) -Tens of millions of people in major cities across the U.S. Northeast are facing record high temperatures on Tuesday on what was expected to be the worst day of an oppressive heat wave that has spread over much of the country since late last week.

Tens of millions of people across the Midwest and Mid-Atlantic are under heat alerts Monday as a dangerous heat wave that began over the weekend continues to move through the region.