Weather
Upper Michigan Weather Alert: 70° to 36° by Monday, Oct 26
Marquette, MI – A sharp change in temperatures is approaching Michigan's Upper Peninsula as Marquette prepares to trade Friday's unusually mild 70 degree afternoon for highs in the 40s by Monday, Octo
By Mara Ellison · 2026-10-23T10:32:54.418Z
Marquette, MI – A sharp change in temperatures is approaching Michigan's Upper Peninsula as Marquette prepares to trade Friday's unusually mild 70 degree afternoon for highs in the 40s by Monday, October 26. Gusty winds will accompany the transition Saturday, potentially reaching 35 mph before cooler air settles across the region. By Monday night, temperatures could fall to approximately 36 degrees, creating a 34 degree difference from Friday's expected high over several days. The changing conditions could affect weekend outdoor activities, highway travel and preparations for colder weather early next week.
According to the National Weather Service in Marquette, Friday's forecast calls for mostly sunny skies and a high near 70 degrees after early morning fog clears. However, the mild weather will gradually give way to increasing clouds, stronger winds and falling temperatures through the weekend. By Monday, afternoon temperatures are expected to reach only 46 degrees, marking a 24 degree decrease from Friday's projected high.
Weekend Winds Strengthen Before Temperatures Fall Saturday, October 24, will bring one of the more noticeable changes as southerly winds increase to 15 to 20 mph, with gusts potentially reaching 35 mph. Temperatures will remain relatively mild, reaching approximately 68 degrees, although mostly cloudy skies and breezy conditions could make outdoor activities less comfortable.
The strongest winds could be especially noticeable along exposed portions of U.S. 41, M 28 and open areas near Lake Superior. Drivers of high profile vehicles should remain mindful of crosswinds, particularly where roadways pass through exposed terrain. The forecast does not indicate any confirmed highway closures or travel restrictions.
Rain chances also increase Saturday night as a disturbance approaches the region. The National Weather Service places the probability of showers at 30%, with temperatures falling to around 51 degrees. Southerly winds of 10 to 15 mph could continue producing gusts up to 30 mph during the evening and nighttime hours.
Sunday Brings Cooler Air Across Marquette Sunday, October 25, begins the more substantial temperature transition. Afternoon highs are expected to reach only 58 degrees, approximately 10 degrees cooler than Saturday. A 20% chance of showers remains before 2 p.m., while northwest winds around 5 mph accompany partly sunny conditions.
By Sunday night, temperatures are projected to fall near 40 degrees under mostly cloudy skies. The cooler air will become more noticeable for residents spending time outdoors, particularly compared with the mild conditions expected Friday and Saturday.
Monday continues the downward trend, with mostly cloudy skies and an afternoon high near 46 degrees. That would make Monday approximately 24 degrees cooler than Friday afternoon, with nighttime temperatures falling to around 36 degrees. Although the projected low remains above freezing, colder sheltered locations may experience different conditions, making updated local forecasts important.
Cooler Conditions Continue Into Next Week Tuesday, October 27, offers little immediate warming, with partly sunny skies and a high near 47 degrees. A chance of showers returns Tuesday night as temperatures settle around 40 degrees, continuing the cooler pattern across the Marquette area.
Temperatures begin recovering Wednesday, reaching approximately 56 degrees under partly sunny skies. Another chance of showers develops Wednesday night before Thursday brings partly sunny conditions and a high near 55 degrees.
The supplied forecast does not indicate accumulating snowfall or a winter storm threat for Marquette through Thursday. Instead, the primary developments remain Saturday's gusty winds and the substantial cooling expected by Monday.
For residents planning weekend travel or outdoor activities, Saturday's wind gusts and Monday's colder temperatures are the two developments worth monitoring.
Are you ready for temperatures to fall from around 70 degrees Friday to the middle 40s by Monday?
Five Day Weather Outlook Friday 10/23: Patchy dense fog gives way to mostly sunny skies with a high near 70 degrees, while south winds around 10 mph could gust to 20 mph; increasing clouds arrive Friday night with a low near 51 degrees.
Saturday 10/24: Mostly cloudy and breezy conditions develop with a high near 68 degrees, south winds of 15 to 20 mph and gusts up to 35 mph; Saturday night brings a 30% chance of showers and a low near 51 degrees.
Sunday 10/25: A 20% chance of showers continues before 2 p.m., followed by partly sunny skies and a high near 58 degrees; northwest winds around 5 mph accompany the cooler air before temperatures fall near 40 degrees Sunday night.
Monday 10/26: Mostly cloudy skies dominate as afternoon temperatures reach only about 46 degrees, representing a substantial cooldown from Friday's warmth; temperatures continue falling Monday night, reaching approximately 36 degrees under mostly cloudy skies.
Tuesday 10/27: Partly sunny skies bring a high near 47 degrees, keeping conditions noticeably cooler than the preceding weekend; a chance of showers develops Tuesday night as temperatures settle near 40 degrees under mostly cloudy skies.
Extended Weather Outlook Wednesday, October 28: Partly sunny skies are expected with a high near 56 degrees, followed by a chance of showers Wednesday night and temperatures falling near 45 degrees.
Thursday, October 29: Partly sunny conditions return with a high near 55 degrees.
The supplied National Weather Service forecast does not provide a separate six to 10 day outlook or indicate a significant winter storm during the available forecast period.