Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

50°F

10°C

Humidity 96%
Wind Speed W 5 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 49°F (9°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 29 Jul 6:56 am CDT
Extended Forecast for

Grand Marais MN

  • Today

    Today: Mostly sunny, with a high near 74. Calm wind becoming southwest around 5 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 9am and 1pm, then a slight chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 76. Calm wind becoming southwest around 5 mph.  Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am.  Cloudy, with a low around 58. Calm wind.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 75. Calm wind becoming northwest around 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73. North wind around 5 mph becoming calm.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Calm wind becoming east around 5 mph.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 74. Calm wind becoming southwest around 5 mph.
Tonight
Partly cloudy, with a low around 59. Calm wind.
Thursday
A slight chance of showers between 9am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Cloudy, with a low around 58. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. Calm wind becoming northwest around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly cloudy, with a low around 56. Calm wind.
Saturday
Mostly sunny, with a high near 73. North wind around 5 mph becoming calm.
Saturday Night
Partly cloudy, with a low around 50. Calm wind.
Sunday
Mostly sunny, with a high near 64. Calm wind becoming east around 5 mph.
Sunday Night
Partly cloudy, with a low around 49. Calm wind.
Monday
Mostly sunny, with a high near 70. Calm wind becoming south around 5 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 54. Calm wind.
Tuesday
A slight chance of showers. Partly sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.76°N 90.33°W
6:36 am CDT Jul 29, 2026
7am CDT Jul 29, 2026-6pm CDT Aug 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database