Clear skies and light winds will lead to some fog again overnight and into the morning. Some could be dense in the river valleys. Temperatures will fall into the 60s to around 70 (west). Tomorrow will begin the warming trend with a chance of thunderstorms in the NE part of the state with highs reaching the mid 80s to lower to mid 90s. Heat index reading may approach or top 100 tomorrow, especially in the western and southern part of the state.