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Weather in Grand Marais, MI · National Weather Service + NOAA

Grand Marais stays cool in summer

Grand Marais has cold winters and cool summers. A typical July afternoon reaches 72°, a January night drops to 11°. Normal November highs come to 39°, and lows to 27°.

Winter 25°/13°Spring 45°/28°Summer 71°/52°Fall 52°/38°
Right now
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Sunrise 7:39 am · sunset 5:16 pm

Getting the latest forecast from the National Weather Service…

What stands out about Grand Marais’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Cool summersJuly afternoons average 72°, cooler than 99% of U.S. towns.Among Michigan’s coldest wintersJanuary nights average 11°, colder than 1,769 of 1,983 Michigan towns.A long heating seasonMore heating degree days than 90% of U.S. towns.
A normal year

Where today sits in Grand Marais’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
25° / 13°
Snow is rare
Spring
45° / 28°
Last frost around May 27
Summer
71° / 52°
5 days reach 90° in a normal year
Fall now
52° / 38°
First frost around Oct 10
Pastthe usual first frost (Oct 10). Last frost next spring: May 27
Best months to be outside
JunJulAugSep
Highs of 62–84° and lows of 40° or more
When is it wettest?October, with 4.1 inches.Is it warmer than it used to be?+1.5° vs. the 20th century.What is each month like?Highs, lows, rain and snow for all 12.

Weather talk

Road reports, first frosts and storm memories from neighbors in Grand Marais.

Town Square →
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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Grand Marais itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Grand Marais 2 E, MI (1 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.