National Weather Service United States Department of Commerce

The August heat we have been so fortunate to escape this month finally returns today with highs in the lower 90s and heat index values in the mid 90s. Skies will remain relatively cloud free through most of Saturday adding to a fairly nice day besides the heat. Some storms will return to the area Sunday morning and afternoon, mainly along northern Missouri, with heat index values climbing to near 100°F. Another round of storms are possible across northern Missouri Monday morning although most of the cloud coverage from these storms will track to the east and north of our area by the afternoon. Unfortunately it appears that a deck of high thick cirrus clouds will start to push into the region Monday morning on the backside of the storms. By 1pm when the solar eclipse is expected to peak, these high cirrus clouds and some mid level clouds are expected to be in place over most of central and northern Missouri through the event. Since these clouds will be cirrus and mainly made of ice crystals there is the possibility that the sun will still be visible to viewers through the cloud, especially if areas become thinner than others. Isolated showers and thunderstorms are also possible Monday afternoon, although there is still some uncertainty to where and when these showers may develop. Being the third day of heat index values above 95° and many people being outside on Monday it will be imperative for people to make sure they stay hydrated this weekend.