 The WTOP Traffic Center is presented by Window Nation. Buy two windows, get two free. Visit windownation.com. I'm Ken Berger, WTOP Traffic. 7 News First Alert Meteorologist Jordan Evans. Temperatures into the upper 70s for Monday. Isolated showers are possible after 3 o'clock, but temperatures on their way up to 98 degrees with a heat index as high as 107 for Monday night. Partly cloudy with a low of 80 degrees and a south wind at 5 to 10 miles per hour.