National Weather Service United States Department of Commerce

The next few days will see warming temperatures before a chance of rain moves into the area on Saturday. The best chances (50-80%) for rain will be south of I-70, with lower chance (30-50%) to the north. A majority of the rain is expected to fall Saturday, but may linger into early Sunday. Another warm up is expected next week.
Locations along and south of I-70 have the greatest chance (50-80%) of getting a widespread soaking rain resulting in potential impacts to outdoor activities. A sharp gradient in rain chances exists to the north. Locations north of I-70 have only a 20-50% chance of rain, where some places across far northern Missouri and west-central Illinois may not see any rain this weekend.