3 Things To Know:
- Frost is likely tonight across the Arrowhead and northern Wisconsin.
- A Fire Weather Watch is in effect for Friday due to low humidity and strong winds.
- The weather will become more active this weekend with potential for severe thunderstorms and beneficial rain.
Tonight’s Frost Advisory
As the high pressure moves out, clear skies and light winds will lead to chilly temperatures in the 30s tonight. A Frost Advisory is in effect for the Arrowhead and northern Wisconsin from 1 AM to 7 AM CDT Thursday. Residents in these areas should consider protecting sensitive plants and animals.
Fire Weather Concerns
Dry air mixing with light winds has created near-critical fire weather conditions. However, the real concerns arise on Friday, as we expect deeper atmospheric mixing and strong winds gusting up to 35 mph. With relative humidity values potentially dropping into the teens, a Fire Weather Watch is now in place for much of northern and central Minnesota, including northwest Wisconsin.
To quote the National Weather Service, “West winds will gust up to 35 mph alongside critically dry relative humidity values dropping as low as 15 percent.” This combination poses a significant risk for fire spread across the region, so please exercise caution.
Weekend and Beyond
Looking ahead, a more active weather pattern is set to develop starting this weekend. A large low pressure system will traverse the region, bringing a chance for severe thunderstorms and beneficial rainfall across Wisconsin. Forecast models suggest widespread soaking rains may arrive by late Sunday into Monday, which could alleviate some drought concerns.
Temperatures will remain near to slightly above normal, making it essential for everyone to stay updated as the system approaches. We will closely monitor the exact track of this system to provide precise details on severe weather risks and rainfall totals.
For updated forecasts where you live check out our Forecasts Page.
Source: NWS DLH Area Forecast Discussion, issued 2026-05-13T17:58:00+00:00.
