 WNIS Newstime 705. The National Weather Service calling for mostly cloudy skies rest of the night with a slight chance of showers and thunderstorms in the overnight low around 76. For tomorrow, mostly sunny with a high near 96. National Weather Service has a heat advisory in effect for tomorrow from 11 a.m. to 8 p.m. tomorrow expecting the heat index up to 109. Friday night, partly cloudy with a chance of showers and thunderstorms low around 78.