TonightClear, with a low around 76. Southwest wind 7 to 10 mph. MondaySunny, with a high near 96. Heat index values as high as 100. Southwest wind 9 to 13 mph. Monday NightMostly clear, with a low around 75. West wind 7 to 9 mph. TuesdayA chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 98. West wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday NightA chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 72. West wind 6 to 11 mph becoming light and variable in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. WednesdayShowers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday NightShowers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 60%.ThursdayShowers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.Thursday NightShowers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%.FridayA chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 89. Chance of precipitation is 50%.Friday NightA chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 40%.SaturdayA chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.Saturday NightA chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.SundayA chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%. , Be prepared with the most accurate 10-day forecast for Sylvania, OH with highs, lows, chance of precipitation from The Weather Channel and Weather.com, Sylvania, OH Weather Forecast, with current conditions, wind, air quality, and what to expect for the next 3 days..