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Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

63°F

17°C

Humidity 84%
Wind Speed E 6 mph
Barometer 29.86 in (1010.9 mb)
Dewpoint 58°F (14°C)
Visibility NA
Last update 15 Jul 1:56 pm CDT
Extended Forecast for

Grand Marais MN

Flood Watch July 15, 02:39pm until July 16, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 15, 02:39pm until July 16, 07:00am

    NOW until 7:00am Wed

    Flood Watch

  • This Afternoon

    High: 62 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 10pm, then showers likely. Some of the storms could produce heavy rainfall. Low around 51. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Heavy Rain
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Cloudy, with a high near 61. East wind around 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 49. East wind around 5 mph becoming north after midnight.

    Low: 49 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 68. North wind around 5 mph becoming southwest in the afternoon.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Southwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the morning.

    High: 68 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Steady temperature around 62. North wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm before 10pm, then showers likely. Some of the storms could produce heavy rainfall. Low around 51. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 40 percent chance of showers. Cloudy, with a high near 61. East wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 49. East wind around 5 mph becoming north after midnight.
Thursday
Sunny, with a high near 68. North wind around 5 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 51. Southwest wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the morning.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm.
Saturday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 67. Northeast wind around 5 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. North wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 70. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 53. South wind around 5 mph becoming calm.
Monday
A slight chance of showers. Mostly sunny, with a high near 69. East wind around 5 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.36°W
Last Update:
1:40 pm CDT Jul 15, 2025
Forecast Valid:
2pm CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation