Excessive Heat Warning Issued for 10 a.m. to 10 p.m. Friday

Heat index could make it feel as hot as 115 degrees.

Posted Thu, Jul 21, 2011 at 9:03 pm ET|Updated Thu, Jul 21, 2011 at 9:28 pm ET

The National Weather Service has issued an excessive heat warning from 10 a.m. to 10 p.m. Friday, according to an alert from Arlington County.

Highs on Friday are forecast to be in the lower 100s, and the high Saturday is expected to be around 100 degrees.

The heat index could make it feel as hot as 115 degrees through early evening both days.

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