Hotter and muggier by midweek; scattered showers and thunderstorms at times

Monday has been a lovely June day for most of Minnesota with seasonable temperatures, low humidity and just a wisp of wind. Scattered clusters of thunderstorms popped to the north.

Quarter-size hail was reported by trained weather spotters in Aitkin County at 3:49 p.m. A few other strong, possibly severe thunderstorms built up late this afternoon around Hinckley in Pine County and have been spreading southeast across southern Burnett County of Wisconsin around Grantsburg and then toward Frederic and Luck in northern Polk County, also of Wisconsin.

Trained spotters have reported quarter-size hail in Grantsburg in southwestern Burnett County, Wis.

Weather radar shortly after 6:00P on Monday with severe thunderstorm warnings in the yellow boxes.

Weather radar at 6:07P on Monday
Weather radar at 6:07P on Monday
Twin Cities National Weather Service

But skies have remained dry in the rain-starved Twin Cities. Afternoon temperatures around the state have warmed into the 70s and 80s with comfortable humidity.

Warmup will continue

Heat and humidity, as measured by the dew point, will build a bit as we get into mid week. High temperatures in the Twin Cities should reach the upper 80s maybe 90 on Wednesday and Thursday.

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A cold front will drag in cool, more-seasonable temperatures for Friday and into the weekend. Weekend high temperatures will probably be in the 70s north and 80s across central and southern portions.

Several chances of showers and thunderstorms, but no guarantees

Some showers and possibly thunderstorms will track eastward across central Minnesota Monday night, likely reaching the Twin Cities area late in the night and lingering into early morning. These storms are not expected to be severe.

A disturbance crossing Minnesota on Tuesday will team up daytime heating and a little more moisture in the air to trigger thunderstorms later in the day over areas of eastern Minnesota.

Storms will continue to build as they track southeast into and across Wisconsin. The Storm Prediction Center has posted a marginal risk (level 1 of 5) for severe weather for Tuesday into Tuesday night for southeastern Minnesota and nearly all of Wisconsin. The risks will be for possible isolated damaging winds and hail.

Convective outlook for Tuesday and Tuesday night
Convective outlook for Tuesday and Tuesday night
NOAA Storm Prediction Center

Wednesday will bring a chance of showers and thunderstorms for mainly northern Minnesota. The Storm Prediction Center has posted a marginal risk for severe weather for Wednesday and Wednesday night for much of central and northern Minnesota.

Convective outlook for Wednesday and Wednesday night
Convective outlook for Wednesday and Wednesday night
NOAA Storm Prediction Center

Thursday will bring more scattered showers and storms. Friday looks to be rain-free in the cooler air behind the cold front.

New forecast models are indicating the chance of scattered thunderstorms over the weekend and maybe for Monday, Independence Day. It’s that time of the year.

Forecast high temperatures for Monday, Independence Day
Forecast high temperatures for Monday, Independence Day
NOAA Weather Prediction Center