First Alert Forecast: Sizing up the chances of a heat wave

Wednesday evening: Mostly clear, hot. Temps in the 80s. Overnight Wednesday night: Variable clouds, increasing humidity. Lows around 70. Thursday: Hazy, hot, humid – chance PM & evening storm. Highs in the 90s, heat index 95-100. Friday: Continued hot with hazy sun. Highs in the 90s, heat index near 100.