That's the advice going out Wednesday night from the Broome County Health Department, especially to the elderly, and parents of infants and toddlers.
That's because they're the ones most likely to suffer from a heat-related illness over the next few days.
The guys rebuilding Johnson Avenue on Binghamton's West Side are on a tight schedule.
No waiting for cooler weather.
But they're not taking chances in this heat.
They are taking this advice from Dr. Chris Ryan, Medical Director of the Broome County Health Department.
"You should drink lots of water." advises Dr. Ryan.
Sports drinks are o.k. too, as long as they don't have too much sugar or caffeine.
"Try to spend time in cool, air conditioned environments." said Dr. Ryan
Not an option for the construction crew.
But it's exactly what the Loyal D. Greenmun Senior Center is offering, weekdays 10 to 4.
"Even several hours each day spent in a cool, air conditioned environment is a good idea, is protective." said Dr. Ryan
For the duration of the heat wave, the center's welcoming even non members.
"You don't have to be a member to come in and sit. And it's nice and cool in here so I'd advise it, if somebody wanted to get out of the heat to come in. " said Mitz White
And, you don't have to just sit.
"We have crafts here. We have pool downstairs. We have 4 pool tables. We have shuffleboard here. We have the Wii game, we can get things going here, activities for people." said White
Of course this is the activity most people think of when the temperature hovers around 90.
A way better option than huddling inside around a fan.
"If it's less than 95 and you feel better with a fan blowing, that's great but don't count on that to be protective against heat-related illness." tells Dr. Ryan
When the fan stopped making a difference at the Lindsley's home, Mom, Dad, and 19 month-old Mason headed for the nearest public pool.
"Yes, yes, it's too hot at home. The fans aren't even working. No air conditioning, so we came here." said Ashley Lindsley
And with no letup for a few days, they'll probably be back.