Weather in Mercer

Frost Advisory issued May 13 at 11:31AM CDT until May 14 at 7:00AM CDT by NWS Duluth MN

Areas: Northern Cook/Northern Lake; Southern Lake/North Shore; Southern Cook/North Shore; Bayfield; Ashland; Iron; Sawyer; Price

13/05/2026, 11:31:00 → 14/05/2026, 07:00:00

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Minnesota, Cook and Lake Counties. In Wisconsin, Price, Ashland, Bayfield, Iron, and Sawyer Counties. This includes the Tribal Lands of the northwestern area of the Lac du Flambeau Band, the Grand Portage Reservation, the Red Cliff Band, the Bad River Reservation and the Lac Courte Oreilles Reservation. Other locations including the Apostle Islands National Lakeshore and Madeline Island. This also includes the Boundary Waters eastern and central area. * WHEN...From 1 AM to 7 AM CDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Fire Weather Watch issued May 13 at 12:57PM CDT until May 15 at 9:00PM CDT by NWS Duluth MN

Areas: Douglas; Bayfield; Ashland; Iron; Burnett; Washburn; Sawyer

13/05/2026, 12:57:00 → 14/05/2026, 07:30:00

The National Weather Service in Duluth has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Friday afternoon through Friday evening. * AFFECTED AREA...In Wisconsin, Douglas, Bayfield, Ashland, Iron, Burnett, Washburn and Sawyer. * WINDS...Southwest 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

Fire Weather Watch issued May 13 at 1:03PM CDT until May 15 at 9:00PM CDT by NWS Green Bay WI

Areas: Vilas

13/05/2026, 13:03:00 → 13/05/2026, 21:15:00

...CRITICAL FIRE WEATHER CONDITIONS POSSIBLE FRIDAY... .Breezy southwesterly winds gusting 20 to 25 mph, low relative humidity, and warm temperatures are expected to lead to critical fire weather conditions from Friday afternoon through Friday evening across portions of northern Wisconsin. Fires could spread quickly in these conditions. The National Weather Service in Green Bay has issued a Fire Weather Watch for gusty winds and low relative humidity, which is in effect from Friday afternoon through Friday evening. * AFFECTED AREA...Vilas. * TIMING...From Friday afternoon through Friday evening. * WINDS...Southwest 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 23 percent. * TEMPERATURES...In the lower 80s. * IMPACTS...Fires will start easily and spread quickly in these conditions. So outdoor burning should not be attempted. Visit the Wisconsin DNR website at apps.dnr.wi.gov/wisburn/#/BurnRestrictions and click on the appropriate county to view current burning restrictions.