Ontonagon
Ontonagon, MI · Weather
My UP Now
Very warm to hot temperatures this week with thunderstorms at times
A Heat Advisory begins Monday west of Marquette as temperatures and humidity climb, bringing heat index values over 100 degrees. Expect rounds of thunderstorms Monday morning, with a few potentially becoming strong to severe with large hail. Monday morning brings widespread showers and thunderstorms, with a risk of severe weather and large hail along the Wisconsin border. As the rain clears, a Heat Advisory takes effect at noon with temperatures climbing into the 90s west of Marquette. High humidity will make it feel much hotter, with heat index values reaching between 90 and 103 degrees by Monday afternoon. The heat continues through Tuesday and Wednesday as high temperatures jump into the upper 80s and 90s. Depending on the wind direction, it will be cooler near some shorelines of the Great Lakes. Overnight lows will only drop into the 60s and 70s, offering little relief from the humidity. Additional rounds of thunderstorms are possible throughout the week, some of which could become strong or severe depending on how the heat and moisture interact. COPYRIGHT 2026 BY MY UP NOW – WBUP/WJMN. ALL RIGHTS RESERVED. THIS MATERIAL MAY NOT BE PUBLISHED, BROADCAST, REWRITTEN OR REDISTRIBUTED
My UP Now
L'Anse waterfront closed amid excessive rainfall, sewer overflow
L’ANSE, Mich. (WBUP/WJMN) — Heavy rainfall on Wednesday, June 24, forced L’Anse to close its waterfront and beach after sewer overflows threatened water quality along Lake Superior. The L’Anse sewage treatment plant recorded 2.5 inches of rain at the facility, with an additional three-quarters of an inch measured uphill from the plant — totaling 3.25 inches of rainfall in four hours. A spokesperson for the Village of L’Anse said the overflows prompted immediate action.“We did close the beach down,” they said. “I contacted the health department and EGLE, the state of Michigan. We had some sewer overflows that were going to affect Linden Creek, which goes directly into Lake Superior. So we just closed the whole beachfront down. Further water sampling will take place.” The village will work with the Western Upper Peninsula Health Department and EGLE to monitor conditions before reopening the public space. Village Manager Bob LaFave said waters began receding Wednesday night, though cleanup efforts and damage assessments continue. Infrastructure along East Falls River Drive, at Secret Creek, held up, but railroad tracks in the area may have sustained damage. Officials are still determining whether planned village activities Wednesday evening can proceed. Residents should watch for updates
keweenawreport.com
Excessive June rainfall floods L’Anse
Heavy rainfall Wednesday forced L’Anse to close its waterfront and beach after sewer overflows threatened water quality along Lake Superior. The L’Anse sewage treatment plant recorded 2.5 inches of rain at the facility, with an additional three-quarters of an inch measured uphill from the plant — totaling 3.25 inches of rainfall in four hours.
WXYZ Detroit 7 Action News
Rain chances return Wednesday. Thunderstorms possible Thursday
WLUC
FIRST ALERT: Consistent weekend conditions into Monday sunshine
MARQUETTE, Mich. (WLUC) - We finish Saturday with partly cloudy skies and scattered showers until the late evening. Sunday brings similar conditions with partly cloudy skies for most of the region with afternoon showers throughout the central and easter U.P. Monday starts off the week sunny then showers return overnight...
WLUC
FIRST ALERT: Multiple showers chances and lower temperatures this week
MARQUETTE, Mich. (WLUC) - A slight rebound in temperatures Monday with small showers late afternoon into overnight Tuesday. Showers will persist on Tuesday and extend into Wednesday morning. We are keeping an eye on Wednesday overnight Thursday due to a line of storms that could impact southern U.P. counties. Next...
My UP Now
Summer warmth this week with rain and thunderstorms
Summer warmth this week with Wednesday being the hottest day. Rain and thunderstorms will be possible this week. Strong thunderstorms are possible on Wednesday. Sunday Night will start with clear skies before clouds increase ahead of an arriving weather system. Monday brings the return of rain as moisture moves into the region. Expect a high chance in the Western U.P. of soaking showers and thunderstorms with heavy rainfall potential on Monday, and the rest of the U.P. Monday night. Following the rain, temperatures will warm up. Widespread highs in the 90s are possible Wednesday. We are also watching Wednesday afternoon and evening for the potential development of strong or even possibly severe thunderstorms as a sharp weather system moves through the region. COPYRIGHT 2026 BY MY UP NOW – WBUP/WJMN. ALL RIGHTS RESERVED. THIS MATERIAL MAY NOT BE PUBLISHED, BROADCAST, REWRITTEN OR REDISTRIBUTED