National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Duluth International Airport (KDLH)

Lat: 46.84°NLon: 92.19°WElev: 1427ft.

Overcast

66°F

19°C

Humidity 90%
Wind Speed S 9 mph
Barometer 29.53 in (999.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 21 Jun 8:55 am CDT
Extended Forecast for

Duluth International Airport MN

Heat Advisory June 21, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 87. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms. Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 58. East wind around 10 mph, with gusts as high as 15 mph.

    Low: 58 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Areas of fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Breezy, with a southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms and
    Areas Fog

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Breezy, with a southeast wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 64 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 80. Breezy, with a west wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 80 °F

    Breezy.
    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69. North wind 5 to 10 mph becoming east in the morning.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 48. East wind 5 to 10 mph.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Cloudy, with a high near 63. East wind around 10 mph, with gusts as high as 15 mph.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 87. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of showers and thunderstorms. Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 58. East wind around 10 mph, with gusts as high as 15 mph.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Areas of fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Breezy, with a southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Breezy, with a southeast wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 80. Breezy, with a west wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 50. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 69. North wind 5 to 10 mph becoming east in the morning.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 48. East wind 5 to 10 mph.
Wednesday
A chance of showers. Cloudy, with a high near 63. East wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night
A chance of showers. Cloudy, with a low around 49. East wind around 10 mph, with gusts as high as 15 mph.
Thursday
A chance of showers. Mostly cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Mostly sunny, with a high near 71. East wind 5 to 10 mph, with gusts as high as 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Duluth International Airport MN
 46.81°N 92.2°W
Last Update:
9:11 am CDT Jun 21, 2025
Forecast Valid:
9am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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