Temperatures will be hot as summer officially starts today.
Aaron Reynolds, National Weather Service meteorologist, said sunny skies and very warm, humid weather will be occurring throughout Western New York.
''We're expecting highs around 90, maybe a little over. It is going to be very hot and humid,'' he said.
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On Thursday, Reynolds said there is an expected increase in clouds, but the temperatures will still be in the upper 80s.
''There is a chance of rain and thunderstorms in the afternoon Thursday. There is a 30 percent chance of rain,'' he said.
Reynolds said the temperature will be increasing, but no new record highs are expected in Western New York today or Thursday. The hot weather is expected to last until Friday, when temperatures will cool down to the upper 70s.
''If you are going to be outside, bring some fluids with you and keep well-hydrated. Stay in the shade when you can,'' he said. ''If you have to do activities outside keep some water with you.''
The National Weather Service has issued an air-quality alert for Chautauqua and Cattaraugus counties today. When there is an air-quality alert, pollution levels are elevated. The state Health Department recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be sensitive to the effects of elevated levels of pollutants include the young and those with pre-existing respiratory problems such as asthma or heart disease.
Chautauqua County has several cooling areas authorized by the Office for the Aging. They include the Crystal Ballroom in Jamestown, open from 9 a.m. to 4 p.m.; The Jamestown Savings Bank Arena, open from 8 a.m. to 9:30 p.m.; James Prendergast Library, which is open from 9 a.m. to 8:30 p.m.; The Chautauqua Mall in Lakewood, open from 8 a.m. to 9 p.m.; St. Mary's Church in Mayville, open from 8 a.m. to 9 p.m.; and the Dunkirk Senior Center, open from 9 a.m. to 5 p.m. Most other libraries, stores and restaurants are air-conditioned, as well.