Hurricane Isaias to Approach the Northern Gulf Coast on Friday

Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from October 8, 04:00 AM CDT until October 8, 04:00 PM CDT

For More Weather Information:

Marquette, MI Local Forecast Office

25NM WSW Ontonagon MI

Marine Point Forecast

[NOTICE]

Today
High: 56 °F
W 15kt
2ft

Small Craft Advisory
Tonight
Low: 49 °F
W 10kt
< 1ft
Friday
High: 60 °F
E 10kt
< 1ft
Friday Night
Low: 57 °F
S 10kt
< 1ft
Saturday
High: 74 °F
SSW 20kt
1-2ft
Saturday Night
Low: 63 °F
SSW 20kt
2-3ft
Sunday
High: 69 °F
SSW 15kt
1-2ft
Sunday Night
Low: 50 °F
NNE 15kt
1-2ft
Columbus Day
High: 54 °F
NNE 20kt
4-5ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:15 am CDT Oct 8, 2026
Forecast Valid: 11am CDT Oct 8, 2026-6pm CDT Oct 14, 2026

View Nearby Observations

Detailed Forecast

Today

W wind around 15 kt. Partly sunny. Waves around 2 ft.

Tonight

W wind 5 to 10 kt becoming S after midnight. Mostly cloudy, then gradually becoming mostly clear. Waves 1 ft or less.

Friday

S wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

Friday Night

ESE wind around 10 kt becoming S after midnight. Winds could gust as high as 20 kt. Partly cloudy. Waves 1 ft or less.

Saturday

SSW wind 15 to 20 kt, with gusts as high as 30 kt. Sunny. Waves 1 to 2 ft.

Saturday Night

SSW wind 15 to 20 kt, with gusts as high as 30 kt. Mostly clear. Waves 2 to 3 ft.

Sunday

SSW wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Waves 1 to 2 ft.

Sunday Night

S wind 10 to 15 kt becoming NNE after midnight. A chance of showers. Waves 1 to 2 ft.

Columbus Day

NNE wind 15 to 20 kt, with gusts as high as 30 kt. Showers likely. Waves 4 to 5 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.