Tonight: The warm and humid nights will continue. Lows drop to near 70 by morning with little to no wind under a mostly clear sky.
Tuesday: Hot and humid again. It could be the 6th straight day for a high of 90+ for Waterloo. An isolated storm is possible during the afternoon. Most places will be dry. The wind is light from the southwest.
Tuesday Night: Any evening showers/storms will end as the sun sets. The sky is mostly clear as it remains warm and humid. Lows drop to the low 70s with little to no wind.
Wednesday: This will be the hottest day of the week with highs approaching the mid 90s in a few locations and the heat index in those same locations approaching 100. There is a little more of a breeze from the south at 10-15 mph.
Thursday: This day will have our best chance for showers/storms for more places than the isolated showers/storms and storms lately.