Tonight will be calm with lows in the low 60s - much closer to average for this time of year. The sky will start off mostly cloudy, but we should see a gradual decrease in clouds overnight.
Humidity stays low for the overnight but that changes on Tuesday. A warm front tracks toward eastern Iowa tomorrow, pushing warmer and more humid air into the KWWL viewing area. Highs will be in the mid 80s to low 90s. Those two factors - heat and humidity - are a couple of main ingredients needed for storms. By later in the evening Tuesday, that's exactly what we'll see. We are under an "enhanced risk" for our northern counties, meaning that is where the best chance for severe weather is. The rest of the area is under a "slight risk" to "enhanced risk" for Tuesday night into early Wednesday. Damaging wind, large hail and heavy rain possible, with isolated tornadoes mainly northwest of the KWWL viewing area.
We will continue to track this situation.
There are a few storm chances, mainly overnight, Tuesday night through Friday. Stay with KWWL for updates.