 WNIS Newstime 10.05. The National Weather Service calling for mostly cloudy skies rest of the night with a slight chance of showers and thunderstorms low around 76. For tomorrow, mostly sunny, high near 96. A heat advisory in effect from 11 a.m. to 8 p.m., expecting heat index values up to 109. Friday night, partly cloudy with a chance of showers and thunderstorms low around 78.