There’s a high pressure system to our north tonight. This will cause our winds to calm down enough for fog to form over Lake Superior. By the early morning hours the fog moves into the Twin Ports, up the North and South Shores as well. Low temps are in the 50s. Expect mid to upper 50s away from the lake and low 50s closer to the lake.
Our high pressure system moves east and a low pressure system approaches from the southwest. We are in between systems and an east wind develops at 5-10mph. The fog that develops overnight will stream into the TwinPorts, NorthShore, and western sections of the South Shore throughout the morning and into the afternoon. Away from the lake expect mostly sunny skies. My thoughts are that the fog chance is around 60%. This means cooler temps for lakeside locations. By the lake in Duluth we can expect mid 50s and on the hill mid to upper 60s. There should be some breaks by mid afternoon, at least on the hill. Away from the lake we have low to mid 70s with mostly sunny skies.
The low pressure system moves north into Ontario on Saturday. The rain that it brings looks more scattered than previous model runs. So I’ve reduced the chance of rain to 50%, it still looks to be a cloudy day with morning lows near 60 and highs in the low 70s.
A trough in the jet stream swings over and at the surface of the earth a cold front passes through Sunday. The cold front brings mostly cloudy skies and temps a bit cooler than the previous day. Morning lows are in the mid 50s and highs are in the mid to upper 60s.
It is the first day of fall. A nice ridge pushes over the region causing the air in the atmosphere to sink. This brings sunny to mostly sunny skies. Morning lows are near 50 and highs reach the upper 60s.
Our ridge moves east and a shortwave nears by late Tuesday afternoon. This increases clouds throughout the day from sunny to partly cloudy and brings our chances of rain and thunder to 30% by the evening hours. Morning lows are in the low 50s and highs reach 70.