textproduct: Grand Forks

KEY MESSAGES

- Temperatures dropping below 36 degrees will bring areas of frost to portions of northwestern and west central Minnesota tonight into Monday morning.

UPDATE

Issued at 1231 PM CDT Sun Oct 4 2026

Temperatures in portions of northwestern and west central MN will drop down overnight, with some 60 percent and higher probabilities of getting below 36 degrees. Went ahead and put out a frost advisory for tonight into tomorrow morning. Further west, think winds will keep things up a bit, but will have later shifts take a second look.

..Rain ending and warm and dry pattern setting in

Band of light rain currently over west central MN is associated with some mid-level frontogenesis, and is expected to move east out of our area in the next three hours. Drier air setting in behind the band, and think northwesterly winds will keep any fog tonight at bay even with recent rainfall. Northwesterly flow aloft continues into the upcoming week, with probabilities of at least a 0.01 of rain near zero except for some 10 percents near Lake of the Woods towards the end of the week. ECWMF EFI shows a trend towards temps above seasonal averages, but nothing on the extreme end of climo at this point.

AVIATION /18Z TAFS THROUGH 18Z MONDAY/

Issued at 1231 PM CDT Sun Oct 4 2026

VFR conditions with just some high clouds above 10000 ft expected on and off. Winds from the northwest at 10 to 15 kts will become light and variable this evening. Winds will shift around to the southeast and pick up again by tomorrow morning, with gusts up to 20 kts at some airports by the end of the period.

FGF WATCHES/WARNINGS/ADVISORIES

ND...None. MN...Frost Advisory from 1 AM to 9 AM CDT Monday for MNZ005-006-008- 009-016-017-023-024-032.