Staying cool has become a priority as Fairfield and rest of the region face are in the grips of another heat wave.

Temperatures all week during the days -- which promise to be sunny or mostly sunny -- are forecast to sizzle in the mid-90s, dropping only to the 70s at night.

The National Weather Service Monday issued a heat advisory, recommending people, especially those with breathing problems, stay inside in the air conditioning, and by 11:30 a.m., Metro-North Railroad on Monday was already reporting train delays caused by the heat.

Don't have air conditioning?

The Fairfield Public Library, corner of Old Post and Post roads, and Fairfield Woods Branch Library, 1147 Fairfield Woods Road, are designated "cooling centers" for the town. The main library is open from 9 a.m. to 9 p.m Monday through Thursday, from 9 a.m. to 6 p.m on Friday and 9 a.m. to 5 p.m. Saturday. At the branch, the hours are 9 a.m. to 8 p.m. Monday through Thursday, 9 a.m. to 6 p.m. Friday and 9 a.m. to 5 p.m. Saturday.

Also open is the Fairfield Senior Center, 100 Mona Terrace, is open from 9 a.m. to 4 p.m. Monday through Friday.

Another local cooling option is taking a dip at one of the town's five Long Island Sound beaches or at Lake Mohegan, which also boasts a sprinkler park.

For more details on the weather outlook, check the Fairfield Citizen forecast: