Des Moines forecast: Heat returns Tuesday after pleasant Labor Day

Des Moines forecast: Heat returns Tuesday after pleasant Labor Day
September 8, 2026

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Des Moines forecast: Heat returns Tuesday after pleasant Labor Day

Iowa weather: Muggy heat returns, plus more rain

DES MOINES, Iowa —

Another round of rainfall, plus a brief surge of humid heat are the focus of Iowa’s weather heading into Tuesday.

Tonight, skies will be partly to mostly cloudy and dry for the majority of the state. Rain is possible in far northwest Iowa after midnight as a boundary approaches from the west.

Interactive Radar | Weather Alerts | Skycams

Tomorrow’s weather will depend on where you’re at more than usual.

Northwest Iowa can expect scattered showers through much of the day. This will keep temps around 80°.

Central and southern Iowa get another dose of the muggy heat when temperatures climb above 90° and feels-like readings approach 100° under partly cloudy skies.

The boundary causing NW Iowa’s showers will eventually sink east-southeast across the state. As it does so, more showers and storms will form ahead of it. Storms are most likely in western Iowa around 4-5 p.m., then in central Iowa a couple hours later.

Severe weather isn’t likely for most, but isolated strong wind gusts are possible.

Rain will last through Tuesday night, gradually shifting southward out of Iowa Wednesday morning.

All-told, some places could get another 1-3″ of rain by Wednesday. This is most likely in central and southern Iowa.

Clouds will decrease north to south Wednesday, humidity will decrease, and temperatures will return to the 80s. Thursday currently looks like the pick day of this week — abundant sunshine, highs in the low 80s, and no major mugginess.

Keep an eye on weather across Iowa with KCCI’s skycams

Weather watchers can keep an eye on conditions by checking our skycam page, which shows aerial views from more than 25 sites across the state.

Iowa weather forecast

  • Today: Showers early in the morning, then partly cloudy in the afternoon. High 84F. Winds SE at 10 to 20 mph.
  • Tonight: A few clouds from time to time. Low 70F. Winds SE at 10 to 15 mph.
  • Tomorrow: Partly to mostly cloudy. High 93F. Winds S at 10 to 15 mph.
  • Tomorrow night: Scattered thunderstorms likely. Low 71F. Winds SW at 5 to 10 mph.
  • Wednesday: Cloudy with spotty showers early, becoming partly cloudy. High 84F. Winds NW at 10 to 15 mph.
  • Wednesday night: A few clouds from time to time. Low 61F. Winds NNW at 5 to 10 mph.
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