Maine braces for extreme heat ahead of Fourth of July

 A couple paddle off Wolfe's Neck Woods State Park on Monday. (Shawn Patrick Ouellette/Staff Photographer) Temperatures are expected to climb dangerously high this week as a strong area of high pressure builds across New England. Meteorologists say extremely hot conditions are on the horizon in Maine, with a combination of heat and humidity potentially making it feel as hot as 110 degrees. Peak temperatures in the mid- to upper-90s are expected ahead of the Fourth of July holiday, between Wednesday and Friday. > Heat and humidity makes a return by midweek. While exact temps will vary across the area, widespread highs in the 90s are expected starting on Wednesday, and likely continue until at least Friday. Dew points will also climb into the 70s, making it feel hotter than these readings. [pic.twitter.com/kxOEkNgD7v](https://t.co/kxOEkNgD7v) > > — NWS Gray (@NWSGray) [June 28, 2026](https://x.com/NWSGray/status/2071278992640843979?ref_src=twsrc%5Etfw) The National Weather Service has issued an [extreme heat watch](https://www.weather.gov/wwamap/wwatxtget.php?cwa=car&wwa=all) for portions of southern, central and western Maine for those three days. The watch is in effect in southern portions of Oxford and Franklin counties, York County, Cumberland County, as well as Androscoggin, Kennebec, Sagahadoc and Lincoln counties. Meteorologist Jerry Combs, who works in the weather service office in Gray, said high temperatures and humidity are expected to increase throughout the week. Related [Most of Maine is no longer in drought, but dry conditions linger along coast](https://www.pressherald.com/2026/06/25/most-of-maine-is-no-longer-in-drought-but-dry-conditions-linger-along-coast/) Temperatures were expected to top out between the mid- to upper-80s Monday and then climb to near 90 degrees Tuesday. Advertisement Combs said temperatures will remain relatively high into the night throughout the rest of the week, which can make the stretch of heat even more dangerous. Especially with the holiday and outdoor activities approaching, people should be cautious when spending extended periods outside, Combs said. He encouraged people to wear light-colored clothing and sunscreen and to stay hydrated. If possible, outdoor work should be delayed until the heat passes, and people should take frequent breaks in air conditioning. > A good reminder for this week: during hot and humid weather, your body's ability to cool itself is challenged in ways you may not expect. Stay [#WeatherReady](https://x.com/hashtag/WeatherReady?src=hash&ref_src=twsrc%5Etfw) by learning the symptoms of Extreme Heat exposure and the appropriate responses. [#nhwx](https://x.com/hashtag/nhwx?src=hash&ref_src=twsrc%5Etfw) [#mewx](https://x.com/hashtag/mewx?src=hash&ref_src=twsrc%5Etfw)[https://t.co/9KhaDDW9cu](https://t.co/9KhaDDW9cu) [pic.twitter.com/cWV3H4zBMq](https://t.co/cWV3H4zBMq) > > — NWS Gray (@NWSGray) [June 29, 2026](https://x.com/NWSGray/status/2071608686041014778?ref_src=twsrc%5Etfw) Children and pets should never be left unattended in vehicles, Combs said. Meteorologists also warn that heat-related illnesses increase significantly during high heat and humidity. The [Maine Emergency Management Agency](https://www.maine.gov/mema/response-recovery/mass-care) website lists open cooling centers across the state. In Falmouth, three locations are open seasonally for people to cool off: the Mason-Motz Activity Center, Family Ice Arena and Falmouth Memorial Library. The Lisbon Police Department lobby is also open as needed, according to the emergency management agency. Copy the Story Link Tagged: [extreme weather](https://www.pressherald.com/tag/extreme-weather/), [maine weather](https://www.pressherald.com/tag/maine-weather/), [National Weather Service](https://www.pressherald.com/tag/national-weather-service/), [public service](https://www.pressherald.com/tag/public-service/) [](https://www.pressherald.com/author/morgan-womack) [Morgan WomackStaff Writer](https://www.pressherald.com/author/morgan-womack) Morgan covers breaking news and public safety for the Portland Press Herald. Before moving to Maine in 2024, she reported for Michigan State University's student-run publication, as well as the Indianapolis. [More by Morgan Womack](https://www.pressherald.com/author/morgan-womack)