Tonight, temperatures will lower to the 70's over much of the Central and East US and should provide for a comfortable night. However, there will be an elevated chance for precipitation in Central IL, West IA, and a likely chance of precipitation in Ohio and West Virginia.
It will remain in the 50's and 60's in the North Plains and into the West Coast tonight. Montana will have a chance for precipitation, more around the mark of 30-50%.
Arizona, New Mexico and into Utah and Colorado will rise above 50% in the way of chance of rain tonight.