Warm and humid; chance PM thunderstorms

Our average Twin Cities high temp is 82 degrees this time of year. We’ll probably reach the upper 80s this afternoon. Sunday highs will be well into the 80s in most of Minnesota and western Wisconsin:

I wouldn’t be surprised to see a few spots in western Minnesota top 90 degrees. Highs in the 70s are expected along the North Shore of Lake Superior.

Dew points will be in the sticky mid 60s and upper 60s in many locations this afternoon:

Dew points in the steamy 70s are expected in the southwest, while northeastern Minnesota enjoys comfortable dew points in the 50s.

Wind gusts of 18-26 mph are possible Sunday afternoon:

Plotted gusts are in knots, with 17 knots equal to almost 20 mph.

Higher wind gusts can be expected near any thunderstorms that develop.

Sunday afternoon and evening thunderstorm chances

Southwestern Minnesota may see a passing shower Sunday morning. Scattered showers and thunderstorms are expected to develop in parts of central and southern Minnesota plus western Wisconsin as we go through Sunday afternoon and evening. In the Twin Cities metro area our thunderstorm chance increases late Sunday afternoon into Sunday evening.

The NWS Storm Prediction Center shows a slight risk of severe weather Sunday and Sunday night in parts of southern Minnesota. Here’s the Twin Cities NWS discussion of the severe weather outlook:

Scattered severe thunderstorms will be possible in the slight risk area in southern Minnesota, which is shaded yellow. A marginal risk of severe weather (meaning an isolated severe thunderstorm is possible) covers most of the remainder of Minnesota plus western Wisconsin Sunday and Sunday night.

You can hear updated weather information on the MPR network, and you’ll see updated weather info on the MPR News live weather blog.

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8:30 a.m. update

The new severe weather outlook released by the NWS Storm Prediction Center includes the Twin Cities metro area, most of southern Minnesota and part of western Wisconsin in a slight risk (shaded yellow) of severe weather this afternoon through tonight:

Slight risk means that scattered severe thunderstorms are possible.

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Updraft will be updated by around 10 a.m. with updated details on our Sunday weather and a look at the coming week.

Programming note

You can hear my live weather updates on MPR News at 7:35 a.m., 9:35 a.m. and 4:35 p.m. each Saturday and Sunday.