Grand Portage, MN Weather Forecast
Local 7-day forecast
Chance Rain Showers then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Portage, MN in one place.
Patchy fog before 7am, then a chance of rain showers between 10am and noon. Partly sunny, with a high near 60. West wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Grand Portage, MN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 15, 2026 8:45 AM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Grand Portage, MN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 8:45 AM CDT
- Forecast office
- DLH
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Portage
Thursday looks like the warmest upcoming period in Grand Portage at 62 degrees F.
Tonight is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Today at about 15 to 25 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 8:45 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DLH
- Radar station
- KMQT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear. Low around 46, with temperatures rising to around 49 overnight. West wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly sunny. High near 57, with temperatures falling to around 54 in the afternoon. Northeast wind 5 to 10 mph.
Mostly cloudy, with a low around 51. South wind 5 to 10 mph.
Mostly sunny, with a high near 62. West wind 5 to 10 mph.
Partly cloudy, with a low around 48. North wind 5 to 10 mph.
A slight chance of rain showers after 1pm. Partly sunny, with a high near 58. East wind 10 to 15 mph, with gusts as high as 25 mph.
A chance of rain showers. Mostly cloudy, with a low around 53. East wind 15 to 20 mph.
A chance of rain showers before 1pm. Mostly cloudy, with a high near 61. East wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly cloudy, with a low around 50. Northeast wind around 15 mph, with gusts as high as 25 mph.
Mostly sunny, with a high near 61. Northeast wind around 15 mph, with gusts as high as 25 mph.
Partly cloudy, with a low around 49. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 62. East wind 10 to 15 mph.
Mostly clear, with a low around 51. West wind 5 to 10 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Chance Rain Showers then Partly Sunny
|
60°F |
15 to 25 mph
W
|
|
Tonight
Sep 15
|
Mostly Clear
|
46°F |
5 to 15 mph
W
|
|
Wednesday
Sep 16
|
Mostly Sunny
|
57°F |
5 to 10 mph
NE
|
|
Wednesday Night
Sep 16
|
Mostly Cloudy
|
51°F |
5 to 10 mph
S
|
|
Thursday
Sep 17
|
Mostly Sunny
|
62°F |
5 to 10 mph
W
|
|
Thursday Night
Sep 17
|
Partly Cloudy
|
48°F |
5 to 10 mph
N
|
|
Friday
Sep 18
|
Partly Sunny then Slight Chance Rain Showers
|
58°F |
10 to 15 mph
E
|
|
Friday Night
Sep 18
|
Chance Rain Showers
|
53°F |
15 to 20 mph
E
|
|
Saturday
Sep 19
|
Chance Rain Showers
|
61°F |
15 to 20 mph
E
|
|
Saturday Night
Sep 19
|
Mostly Cloudy
|
50°F |
15 mph
NE
|
|
Sunday
Sep 20
|
Mostly Sunny
|
61°F |
15 mph
NE
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
49°F |
5 to 15 mph
NE
|
|
Monday
Sep 21
|
Mostly Sunny
|
62°F |
10 to 15 mph
E
|
|
Monday Night
Sep 21
|
Mostly Clear
|
51°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Portage.