National Weather Service

News Headlines

NOAA Weather Radio User Survey (Open until May 28, 2026)
Skywarn Spotter Class Schedule - In May we will be in Mtn Iron, Brainerd, and Hurley! Pre-register for a class so we know you're coming!

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Overcast

37°F

3°C

Humidity	100%
Wind Speed	NW 7 mph
Barometer	29.94 in
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	32°F (0°C)
Last update	13 May 3:15 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles WSW Grand Portage MN

Frost Advisory until May 13, 08:00am

Click here for hazard details and duration

Frost Advisory

Frost Advisory until May 13, 08:00am
NOW until 8:00am Wed
Frost Advisory
Overnight
Low: 35 °F
Cloudy
Wednesday
High: 57 °F
Mostly Sunny
Wednesday Night
Low: 35 °F
Mostly Clear
then Areas
Frost
Thursday
High: 54 °F
Areas Frost
then Sunny
Thursday Night
Low: 42 °F
Showers
Friday
High: 65 °F
Partly Sunny
then Mostly
Sunny and
Breezy
Friday Night
Low: 46 °F
Partly Cloudy
Saturday
High: 61 °F
Mostly Sunny
and Breezy

Detailed Forecast

Overnight

Cloudy, with a low around 35. North wind around 5 mph, with gusts as high as 15 mph.

Wednesday

Mostly sunny, with a high near 57. North wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

Areas of frost after 1am. Otherwise, mostly clear, with a low around 35. North wind around 5 mph becoming calm.

Thursday

Areas of frost before 8am. Otherwise, sunny, with a high near 54. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

Thursday Night

Showers, mainly after 10pm. Low around 42. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Mostly sunny, with a high near 65. Breezy, with a south wind 10 to 15 mph, with gusts as high as 25 mph.

Friday Night

Partly cloudy, with a low around 46. Southwest wind around 10 mph, with gusts as high as 25 mph.

Saturday

Mostly sunny, with a high near 61. Breezy, with a west wind 10 to 15 mph, with gusts as high as 30 mph.

Saturday Night

Areas of frost after 5am. Otherwise, partly cloudy, with a low around 37. Northwest wind around 5 mph becoming northeast after midnight.

Sunday

A slight chance of showers after 1pm. Areas of frost before 7am. Otherwise, partly sunny, with a high near 52. Breezy, with an east wind 5 to 15 mph, with gusts as high as 30 mph.

Sunday Night

Showers likely. Mostly cloudy, with a low around 39. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 30 mph.

Monday

Showers likely. Mostly cloudy, with a high near 57. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 30 mph.

Monday Night

Showers likely. Mostly cloudy, with a low around 41. Northeast wind around 10 mph, with gusts as high as 25 mph.

Tuesday

A slight chance of showers. Mostly cloudy, with a high near 56. North wind around 10 mph becoming west in the afternoon. Winds could gust as high as 30 mph.