Areas of frost possible tonight

Looks like tonight parts of the FA could see their first frost of this fall season.
The best areas to see frost will be North of a HWY 8 line through Barron, Polk, and Rusk Counties and points North of said Counties....The closer one is to Lake Superior the less likely for frost....Temps are forecasted to drop into the middle to upper 30s tonight.....
Last night was a cold night across the FA.Below are the reported lows.
Superior 39
Hayward 35
Siren 38
Rice Lake 43
Ladysmith 44
EAU 41
New Richmond 39
Ocseola 41.
Here at the office we came in with 38.