Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Freeze Climatology

Patchy frost is possible tonight in colder spots, as temperatures generally fall into the mid to upper 30s away from Lake Michigan. Below are statistics for the first freeze of Fall (32°).

Lowest Temperatures So Far This Season:

Most locations have not yet fallen below 40 degrees since last spring. This year joins roughly 10% of the years on record to not have a low temperature below 40 degrees by this point in the season.

Grand Rapids: 43° (Oct 8)

Lansing: 43° (Oct 8)

Muskegon: 48° (Sep 28)

Holland: 49° (Sep 3)

Kalamazoo: 44° (Oct 8)

Battle Creek: 44° (Oct 8)

Jackson: 43° (Oct 8)

Ludington: 42° (Sep 2)

Big Rapids: 40° (Oct 8)

Mount Pleasant: 43° (Oct 8)

Leota (Clare County): 36° (Sep 2 & Oct 8)