I post this every year. We must be getting close to gameday when you can get a weather forecast for the day of the game! Accuweather only has the forecast out through 9/3. But they say 90 and chance of storms. But if the GFS (linked below) is accurate that rain will clear out by the 4th. Also this forecast is guaranteed to change multiple times before the actual game.
AccuWeather.com - Iowa City Month Weather | Monthly Forecast for Iowa City, IA
Below is a link to the GFS long range model forecast. It shows clear skies - this would be 6am on 9/4. No rain in the forecast that day. I'll keep an eye on this. The GFS has been known to totally flop forecasts from one run to the next, which is why weather forecasting is so difficult.
http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/gfs/12/images/gfs_pcp_360m.gif
AccuWeather.com - Iowa City Month Weather | Monthly Forecast for Iowa City, IA
Below is a link to the GFS long range model forecast. It shows clear skies - this would be 6am on 9/4. No rain in the forecast that day. I'll keep an eye on this. The GFS has been known to totally flop forecasts from one run to the next, which is why weather forecasting is so difficult.
http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/gfs/12/images/gfs_pcp_360m.gif