Every severe weather report published for Boone County, Missouri, newest first.
A Dense Fog Advisory issued by the National Weather Service Kansas City covers Grundy, Sullivan, Adair and 15 other Missouri counties, where low visibility could make driving conditions hazardous until 10 a.m. CDT Friday, September 11, 2026.
The National Weather Service St Louis MO has pushed the end time of a dense fog advisory back, saying it now runs longer than first issued.
The National Weather Service has issued a Heat Advisory effective from noon to 8 PM CDT today.
The National Weather Service warns of heat index values up to 105 degrees from noon to 8 p.m. CDT Tuesday for parts of northeast Kansas and Missouri.
The National Weather Service has issued a flood watch for parts of Illinois and Missouri, in effect from Thursday, September 3, 2026, through late Monday night.
The National Weather Service has issued a Heat Advisory for portions of Kansas and Missouri, including Atchison, Miami, and Linn counties, effective from noon Monday, August 31, until 7 PM CDT Wednesday, September 2.
The National Weather Service has issued a Heat Advisory for parts of Illinois and Missouri, including Greene, Macoupin, and Montgomery counties in Illinois, with heat index values up to 105 expected.