When Does Fall Start in Iowa? Meteorological vs. Astronomical Fall Explained

Learn when fall starts in Iowa, the difference between meteorological and astronomical autumn, and what weather to expect across the state.

When Does Fall Start in Iowa? Meteorological vs. Astronomical Fall Explained

Iowa Weather Forecast

As we close out September and head into early October, the CPC is forecasting above average precipitation for Iowa and most of the central US. We have already had an above average month for precipitation, and that doesn’t look to let up yet! Even with a week left to go in September, this has already been the 2nd wettest September on record for Des Moines.

Quick links:  ISCN Weather App | Current Conditions | Weather Radar | Soil Temperatures | Drought Monitor | National Weather Service

Lunar Eclipse in Iowa: When and How to See the August 2026 Eclipse

See the August 2026 lunar eclipse in Iowa. Find peak viewing times, what to expect, why the Moon turns red and when Iowa’s next lunar eclipse occurs.

What is a Squall Line?

Learn how squall line thunderstorms form, how fast they move, how long they last and whether they can produce tornadoes.

When Does Fall Start in Iowa? Meteorological vs. Astronomical Fall Explained

Learn when fall starts in Iowa, the difference between meteorological and astronomical autumn, and what weather to expect across the state.