Des Moines, IA (northwestiowanow.com) — The average high temperature in August was 71 degrees, which aligns with or falls slightly below the typical average for the month, according to State Climatologist Justin Glisan.

 

Precipitation for the month was below average.

 

In Spencer, the highest daytime temperature recorded was 90 degrees on both August 16th and 17th. The coldest temperatures occurred on the 24th and 25th, when lows dipped to 44 degrees.
Looking ahead, Glisan offered insight into what Iowans might expect during the fall and early winter months. A short-term La Nina pattern is expected to influence weather conditions, impacting temperatures and precipitation across the region.