Monday began an official heat wave for our area, said Chief Meteorologist Jamie Simpson.
To declare a heat wave, temperatures must reach 90 degrees or higher for a period of three or more days. Simpson said we haven’t hit 90 at Dayton International Airport, but other parts of the Miami Valley have, including Wright Patterson Air Force Base.
The high heat index will be with us all week and top out between 95 and 100 degrees, said Simpson.
“The heat index is a ‘feels like’ temperature that describes what the temperature would have to be with low humidity to feel the same to the human body,” said Simpson. “With higher humidity it is harder to evaporate perspiration, which is our body’s natural way of cooling. That’s why we suggest wearing light weight and light colored clothing in weather like this and to drink plenty of fluids, especially water. Those things can help to maximize evaporation of perspiration.”
The forecast for each day this week looks similar. We’ll start at or just above 70 degrees with some spotty fog possible each morning due to the humidity. We will see a lot of sun through the week with highs near 90. We may also see the chance of a thunderstorm near sunset this week but our best chance for storms will come Saturday when a cold front moves through. We should see widespread showers and storms. The temperature is expected to only rise to 80 Saturday, and clouds will move out making for a clear, dry comfortable Sunday as the humidity drops.
Monday: 90 degrees (Heat index: 97)
Tuesday: 92 degrees (Heat index: 98)
Wednesday: 90 degrees (Heat index: 100)
Thursday: 92 degrees (Heat index: 101)
Friday: 91 degrees (Heat index: 100)