Frost advisory in effect with snowflakes possible in Northern MN

Fall has arrived in the Northland, bringing cool temperatures, gusty winds and the possibility of frost — and even some flakes of snow.

Northern Minnesotans should expect high temperatures in the upper 50s, with temps as low as 33 degrees are in the forecast for Northern Minnesota during the early morning hours of Thursday, Sept. 4. Northwest winds may gust as high as 25 mph and rain showers are possible on and off through the remainder of the work week.

The National Weather Service offices in Duluth and Grand Forks issued frost advisories for the northern third of the state, between 2-8 a.m. Thursday. Frost is also possible Friday and Saturday mornings, according to the weather service.

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National Weather Service

There's a 30% to 50% chance of below-freezing temperatures in parts of northwestern Minnesota. In the northeast, the weather service had less confidence in frost production because of expected cloud cover, but the expected low temps means it's possible across a broad swath.

"It's one of those kinds of nights where not everyone will see frost, but it's tricky ... to tell where exactly it will happen, and the potential is there for many places," according to the forecast discussion. "Therefore, coverage of frost advisories is pretty broad, only excluding the North Shore coastlines and around Brainerd to Hinckley where temperatures should remain a bit warmer."

Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. The weather service advises residents to take steps now to protect tender plants from the cold.

Temperatures are expected to warm somewhat later in the weekend.