Some showers, possibly a thunderstorm
Our Saturday is starting out showery over much of Minnesota.
The showers will diminish by late morning over southern Minnesota, but rain could return later this afternoon or this evening in the form of scattered showers and an isolated thunderstorm.
An upper level disturbance could ignite some thunderstorms over northwestern and west-central Minnesota this afternoon. Those thunderstorms will tend to spread to the east and southeast, toward southwestern, central and northeastern Minnesota.
The Storm Prediction Center of the National Weather Service shows a marginal risk of severe weather for western Minnesota today and tonight:
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The marginal risk category indicates that an isolated severe thunderstorm is possible.
A warm front moves northward through Minnesota on Sunday, and scattered thunderstorms could develop along and north of the front:
The Storm Prediction Center shows a marginal risk of severe weather for northwestern through east-central Minnesota Sunday and Sunday night:
The marginal risk area on Sunday includes the northern part of the Twin Cities metro area.
Cool today, warmer Sunday
Our average high this time of year is 79 degrees in the Twin Cities. We’re likely to top out in the lower 70s today over much of Minnesota:
Some spots in northern Minnesota will stay in the 60s.
Highs in the 80s return to most of Minnesota tomorrow:
Northeastern Minnesota will see highs in the 70s.
Dew points in the upper 60s are expected by Sunday afternoon over southern Minnesota.
Dew points near 70 are expected on Monday over central and southern Minnesota, along with highs in the mid to upper 80s. That'll feel steamy!
Cooler and drier air returns on Tuesday.
Tropical update
Forecasters continue to watch an area of low pressure located north of Cuba and south of Andros Island in the Bahamas. It is expected to drift west-northwestward over the next couple of days.
The National Hurricane Center states that there is a 40 percent chance that this will become a tropical cyclone within the next 5 days:
The low could approach south Florida sometime tomorrow. If it passes into the warmer waters of the Gulf of Mexico early next week, it could become a tropical storm or a hurricane.
The National Hurricane Center posts frequent tropical weather updates.
Programming note
You can hear my live weather updates at 7:35 a.m. and 4:35 p.m. each Saturday and Sunday on Minnesota Public Radio.