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KEY MESSAGES

- Chilly temperatures tonight with localized upper 30s to low 40s possible.

- Dry weather continues into this weekend with our next rain chances returning late Saturday.

DISCUSSION

Issued at 403 PM EDT Thu Sep 10 2026

Pattern Synopsis:

Troughing will continue to slide to our east through the end of the week as ridging folds over Ontario and the Great Lakes. Surface high pressure will continue to build across the region, becoming centered more squarely overhead tonight into Friday. The pattern will amplify through the weekend as upstream troughing punches overhead, supporting a cyclone well to our north that looks to swing an attendant cold front through the area in the late Saturday/early Sunday timeframe. High pressure then looks to build back into the Great Lakes on the backside of this system to start next week before troughing looks to settle in by the middle of next week.

Forecast Discussion:

Rain-free weather is expected to persist through the end of this week and into this weekend. With mostly clear skies and calm winds in store tonight, efficient radiational cooling will allow for temperatures to quickly drop -- potentially dipping into the upper 30s and low 40s across the typical coldest low-lying locations of interior northern Michigan. Temperatures ranging from the mid 40s to low 50s are anticipated elsewhere. Afternoon temperatures then look to warm back into the mid 70s to low 80s for most areas Friday and Saturday.

Our next round of rain chances return late Saturday as the aforementioned front swings through the area. With a dry airmass originally in place ahead of the front in tandem with the system being far to our north, the relatively moisture-starved environment looks to keep coverage to isolated/scattered -- with the potential that little/no rain develops along/ahead of the front and many areas of the Northwoods stay dry through the weekend. High pressure building in will likely keep dry weather in the forecast Sunday and Monday with our next chances potentially holding off until closer to the middle of next week.

AVIATION /18Z TAFS THROUGH 18Z FRIDAY/

Issued at 152 PM EDT Thu Sep 10 2026

VFR conditions are expected to continue through the issuance period. Some gusty west/northwest winds this afternoon will subside this evening, eventually going weak/calm overnight. Patchy FG/BR may develop overnight, but may be confined to interior low-lying areas and confidence is not high enough at the current time to include in specific TAF locations.

APX WATCHES/WARNINGS/ADVISORIES

MI...None. MARINE...Small Craft Advisory until 5 PM EDT this afternoon for LHZ345>348.