Northeasterly winds swept in today at the head of the lake, bringing a sharp drop in temperatures across the Twin Ports. By 4 PM, it was 15 to 25 degrees cooler than at the same time on Sunday.
The Twin Ports can expect warmer weather in the coming days, with highs reaching back into the 70s and 80s. Humidity will be on the rise too, with dew points in the 60s to low 70s, peaking on Wednesday and Thursday.
The lake breeze moved far inland today, which is a little unusual for late July. Temperatures were mostly in the 80s west of the front but dropped to the 60s near Lake Superior.
From midnight to 9 AM on Monday, July 27, 2026, the radar showed several rounds of scattered strong to severe thunderstorms moving southeast across parts of northern Minnesota, the Arrowhead, and into far northern Wisconsin. Early this morning, some of these storms produced significant hail in certain areas.
Storm Reports from July 26-27, 2026
3:20 AM, 7/27: Hail 1.50″ (Ping Pong ball size). 2 WSW Moquah, WI (Bayfield County)
2:45 AM, 7/27: Hail 2.75″ (Baseball size). 7 S Port Wing, WI (Bayfield County)
2:45 AM, 7/27: Hail 3.00″ (Tea Cup size). 7 S Port Wing, WI (Bayfield County)
12:05 AM, 7/27: Hail 1.25″ (Half Dollar size). 1 WNW Zim, MN (St. Louis County)
12:05 AM, 7/27: Hail 1.00″ (Quarter size). 2 NW Zim, MN (St. Louis County)
8:40 PM, 7/26: Marine Thunderstorm Wind Gust. 69 mph. 1 SE Silver Bay, MN (Lake County). Temperature increase from 69 to 88 degrees between 7-8 PM Sunday.
8:10 PM, 7/26: Hail 0.50″. Knife River, MN (Lake County)
…Muggy July in Duluth…
July has been especially humid in Duluth, with six days so far hitting dew points of 70 or higher—definitely oppressive. The peak was a sticky 76 degrees on July 26th.
In contrast, this month has only seen 5 days with a dew point temperature below 60 degrees, with the lowest being 52 on July 22nd.
This afternoon, dew points in northeast Minnesota and northwest Wisconsin were mostly in the mid-60s to around 70, while areas closer to Lake Superior saw lower dew points thanks to the cooler temperatures.
This week, a large mid- and upper-level ridge will persist over the southern Rockies and the central and southern Plains, with a slight tendency to expand a bit farther west as the week goes on.
Since the Northland stays northeast of the ridge, the upper-level flow will keep coming in from the northwest throughout the week.
No significant weather systems are expected through midweek, with just a few isolated showers or thunderstorms possible in the Northland on Tuesday and Wednesday, but most of the area should remain dry.
There’s a better chance for rain and possibly more widespread coverage later in the week, especially between Thursday and Friday, so we’ll see how the models trend with that system over the next few days.
Right now, it looks like Duluth could get about a quarter inch of rain by 7 PM Friday, with most of it arriving later in the week. Higher amounts are possible farther south.
After Sunday’s poor showing by many of the convection-allowing models, here’s what one of them is predicting for Tuesday—though take it with a grain of salt.
The model (NSSL HT) shows a few isolated showers and thunderstorms moving southeast across parts of the Northland on Tuesday.
Loop time 7 AM to 10 PM Tuesday.
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