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Isle Royale National Park, MI Weather Forecast
Wx Discussion - Wx Hazards - Wx Aviation
NWS Forecast for 6 Miles E Isle Royale National Park MI
National Weather Service Forecast for: 6 Miles E Isle Royale National Park MI
Issued by: National Weather Service Marquette, MI
Updated: 6:56 am EDT Aug 20, 2025
 
Today

Today: Mostly cloudy, then gradually becoming sunny, with a high near 65. North wind around 5 mph becoming south in the afternoon.
Decreasing
Clouds

 Tonight

Tonight: Mostly clear, with a low around 57. Southwest wind around 5 mph.
Mostly Clear

 Thursday

Thursday: Mostly sunny, with a high near 64. South wind 5 to 10 mph.
Mostly Sunny

 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 61. South wind around 10 mph.
Mostly Cloudy
then Slight
Chance
T-storms
 Friday

Friday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 69. Southwest wind around 10 mph, with gusts as high as 15 mph.
Slight Chance
T-storms then
Chance
Showers
 Friday
Night
Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 60.
Chance
Showers then
Partly Cloudy
 Saturday

Saturday: Mostly sunny, with a high near 63.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 55.
Mostly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 57.
Partly Sunny
Hi 65 °F Lo 57 °F Hi 64 °F Lo 61 °F Hi 69 °F Lo 60 °F Hi 63 °F Lo 55 °F Hi 57 °F

Hazardous Weather Outlook
 

Today
 
 Mostly cloudy, then gradually becoming sunny, with a high near 65. North wind around 5 mph becoming south in the afternoon.
Tonight
 
 Mostly clear, with a low around 57. Southwest wind around 5 mph.
Thursday
 
 Mostly sunny, with a high near 64. South wind 5 to 10 mph.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 61. South wind around 10 mph.
Friday
 
 A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 69. Southwest wind around 10 mph, with gusts as high as 15 mph.
Friday Night
 
 A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 60.
Saturday
 
 Mostly sunny, with a high near 63.
Saturday Night
 
 Mostly cloudy, with a low around 55.
Sunday
 
 Partly sunny, with a high near 57.
Sunday Night
 
 Mostly cloudy, with a low around 53.
Monday
 
 Mostly sunny, with a high near 60.
Monday Night
 
 Partly cloudy, with a low around 54.
Tuesday
 
 Sunny, with a high near 63.

 

Forecast from NOAA-NWS for 6 Miles E Isle Royale National Park MI.

Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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