(Des Moines, IA) -- Temperatures dipped into the mid-20s in parts of northwest Iowa overnight, ending the growing season in that part of the state. Craig Cogil of the National Weather Service says Spencer and Sheldon were the coldest spots overnight at around 25-degrees.
The overnight low at the Des Moines Airport was 36-degrees. The low temperature at the National Weather Service Office in nearby Johnston was 32-degrees. Cedar Rapids recorded a 32-degree overnight low. Temperatures near the Quad Cities were in the mid-to-upper 30s.
Cogil says the cool weather is right on time, Iowa usually gets the first frost and first freeze of the season in October.
He says the weekend should be cool, with temperatures in the 50s. Rain is possible tomorrow (Saturday).
He says it should be warmer than normal and dry over the next 10-to-15 days.