After a frosty morning Tuesday, temperatures will fire off to the mid-60's and beyond this week, according to the National Weather Service forecast. Nighttime lows should be warmer, relieving the threat of frost.

Some midweek clouds are expected Wednesday and Thursday, but temperatures should remain in the mid-60's for daytime highs. A high in the low 70's is expected Sunday, with early morning temperatures in the 50's as runners step off for the Kalamazoo Marathon.

Hear updates to the forecast all day long on this station.