The National Weather Service in Des Moines is keeping an eye on changing conditions across Iowa this week. Patchy fog developed early this (Tue 9/2/25) morning across western Iowa, with more isolated fog in the north and east. That fog is expected to burn off shortly after sunrise. Later today (Tue), a few isolated showers and non-severe storms could pop up across northern Iowa.
The bigger system arrives tonight (Tue) into tomorrow (Wed 9/3/25). A strong cold front is expected to move in, bringing widespread rain chances. Forecasters say a few storms could become strong, especially in northwest Iowa late tonight (Tue) and into tomorrow (Wed). By tomorrow (Wed) afternoon and evening, southern Iowa could also see a few stronger storms before conditions gradually settle heading into the weekend.
No spotter activation is expected at this time, but the Weather Service urges Iowans to stay alert for changing conditions.
More from the National Weather Service can be found here: https://forecast.weather.gov/showsigwx.php?warnzone=IAZ026&warncounty=IAC069&firewxzone=IAZ026&local_place1=5%20Miles%20SE%20Coulter%20IA&product1=Hazardous+Weather+Outlook&lat=42.6763&lon=-93.296
