Upper: An area of low pressure will be located near Kansas City on Thursday morning, with a trough axis extending southward through E Oklahoma. The trough will shift to the northeast of the state on Friday as high pressure over the Southwest U.S. begins to build toward the Central and Southern Plains. By Sunday evening, high pressure will cover most of the southern half of the U.S. with the mid-level jet extending eastward along the U.S./Canada border.
Surface: High pressure will begin to shift eastward away from Oklahoma as early as Thursday. A trough of low pressure will become established over the High Plains. This feature will remain in place through the weekend with the only areas receiving frontal passage limited to the Northern Plains and Upper Midwest.
Impacts: An increase in moisture combined with some lifting wrapping around the departing upper low will allow for isolated showers and thunderstorms through Saturday morning. Organized areas of precipitation producing significant rainfall are not expected. The pleasant temperatures of last week will be a thing of the past, with Thursday temperatures expected to be close to seasonal normal and above normal temperatures expected Friday through Sunday. Current indications are that it will become quite hot during the upcoming work week.
While no precipitation is specifically mentioned, the chances of showers or thunderstorms through Saturday are not zero.
Thursday morning: 59
Friday morning: 63
Saturday morning: 67
Sunday morning: 68