Still Cool Today... Warmup for the Weekend...Heat by End of Next Week.

The slow moving massive closed low that spread a blanket of clouds across the area for the past couple of days is finally moving on out of the picture.  It is located in Canada just north of Lake Huron this morning.  One last disturbance rotating around the low has caused some sprinkles and slight rain showers this morning as it drops southeast across extreme northwest Illinois.  Those showers and sprinkles are moving toward the south/southeast, and  will be out of the area later this morning.  Following the disturbance skies are clearing across northwestern Wisconsin, so the Stateline may see some sun later this afternoon. With the cool northwest air flow continuing, the high temperatures across the area will only be in the low 70's.   High pressure located near Sioux Falls, South Dakota will move across the area tonight clearing skies. Overnight temperatures will drop to the middle 50's, and perhaps a little lower in spots.  By Saturday morning the high will be over Indiana, the wind will swing around to the southeast, and skies will be mostly sunny.  Clouds will increase, though, during the afternoon as a warm front stretching from southern Missouri to just south of Kansas City, and arcs across Kansas to a low over the Oklahoma panhandle.  A thunderstorm complex will be ongoing in the early morning from eastern Nebraska, southwestern Iowa into northern Missouri.  That complex will drop toward the southeast, and not affect the Stateline on Saturday.  The front is expected to get a good push toward the north on Sunday, and  approach the Stateline by daybreak on Monday.  Chances of showers and thunderstorms will increase with the approach of the front on Sunday night, and continue off and on until the passage of a cold front moving in from the west early Monday night.  High pressure will take control of the weather on Tuesday with mostly sunny skies and afternoon temperatures in the low 80's.  High pressure will build into the mid west at the surface and aloft, and the heat will build so that by Thursday, high temperatures will be up around 90 degree.  The National Weather Service's longer range forecast is indicating good chances for and extended period of  hot weather starting of the first week of July.