For tonight it appears that the front will stay stalled just south of the state line. There will be a few weak disturbances and a weak low level jet developing later tonight. This will be enough for spotty shower or thunderstorm activity to the south of the state line. Further north where skies will clear a bit, fog will develop. Fog and low cloudiness early Saturday will give way to partly cloudy skies and afternoon temperatures in the mid to upper 80s. The front will likely remain parked near or just south of the state line, focusing any chance for a shower or thunderstorm across Northern Arkansas.
Saturday night into Sunday will feature a return to more widespread rain chances. A stonger disturbance will move into the area by Sunday, likely causing the front to wobble back to the north. This should generate a few different episodes of rain. The first chance of rain and thunderstorms will be late Saturday night, lingering into Sunday morning. This acitivity doesn't look too widespread. Daytime heating and the passing disturbance should set the stage for more widespread rain and thunderstorms Sunday afternoon. This activity will likely linger into Sunday night before moving out Monday morning. Temperatures Sunday will still manage to warm into the mid to upper 80s despite the increased cloud cover and rain chances.
The front should clear the area by Monday afternoon, turning off the rain and ushering in a cooler and less humid air mass. Tuesday through Thursday look great. Skies will be mostly clear to partly cloudy with comfortably cool morning temperatures near 60° and comfortably warm afternoon temperatures in the low to mid 80s. Of course the lack of humidity will be the key to the comfiness. The next chance for rain may come as early as Friday of next week.
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