Heat Index Could Reach 103 Degrees Tuesday - NBC4 Washington

Heat Index Could Reach 103 Degrees Tuesday



    Midday Weather Aug 22, 2017

    Temperatures are already in the mid 80s, and expected to rise as humidity peaks later in the day. A few isolated storms could occur in the evening, but morning showers are mostly expected to hit tomorrow morning. Storm Team4 meteorologist Lauryn Ricketts has the forecast. (Published Tuesday, Aug. 22, 2017)

    Blazing sun and oppressive humidity will send the heat index soaring Tuesday, but Storm Team4 says relief is on the way. 

    Temperatures will soar to the mid 90s Tuesday, but the heat index could reach 103 degrees.

    "The heat index tells you how it feels outside in the shade," the Maryland Department of Health and Mental Hygiene says on its website. "The heat index is a measurement of how it feels when relative humidity is combined with the effects of the air temperature."

    Storm Team4 has declared Tuesday a Weather Alert Day. 

    Early Weather Aug 22, 2017

    [DC] Early Weather Aug 22, 2017

    Storm Team4 has the forecast for Aug 22, 2017.

    (Published Tuesday, Aug. 22, 2017)

    But there's some good news!

    Tuesday will be the last of the regions's triple-digit heat indices for quite a while. 

    A cold front moves through the area Wednesday, bringing a temperature drop and a very small chance for rain. 

    Temperatures will remain in the 70s and 80s for the rest of the week.