Temperature are excepted to drop into the low 30s Friday night with only a slight chance of frost.
Depending on the feedback, the hourly forecast service could be a permanent feature.
After Friday's hailstorm, car dealerships in Columbia have had to adjust to the effects the weather had on their inventory.
A Friday afternoon storm hit vehicles and homes in parts of Columbia and Boone County.
The National Weather Service in St. Louis released this summer's weather statistics.
Mid-Missouri receives much-needed rainfall, but not in time to salvage corn and soybean crops.
The rain prompted MU students to put on their rain boots Friday morning.
Periods of heavy rain are expected to continue on Saturday, according to a hydrological outlook issued by the National Weather Service in St. Louis.
Rainfall is expected to be the heaviest Friday night and into Saturday. Forecasters expect 3 to 5 inches of rain in much of Missouri, with locally higher amounts possible.
The recently downgraded tropical storm is expected to bring 3 to 5 inches of rain to mid-Missouri.
The latest storm track graph from the National Hurricane Center shows the center of Isaac on path to pass right over mid-Missouri this weekend. Chance of rain Friday night into Saturday is between 70 and 80 percent.
Thousands of wells have gone dry this summer in the worst drought the nation has experienced in decades.
Water driven by the large and powerful storm flooded over an 18-mile stretch of one levee in Plaquemines Parish south of New Orleans, flooding some homes in a thinly populated area.
Dave Weber, a volunteer and structural engineer with the Boone County Fire Protection District, received deployment orders late Monday to assist rescue personnel in the wake of Hurricane Isaac.
Finally a hurricane, the unwieldy and wobbly Isaac bore down on New Orleans on Tuesday, almost seven years to the day that Hurricane Katrina transformed the city.
Isaac, a massive storm spanning nearly 200 miles from its center, made landfall at about 6:45 p.m. near the mouth of the Mississippi River.
Even after Isaac loses its hurricane designation, the tropical system will have an effect on Missouri. Forecasts call for the possibility of heavy rainfall in the area over the weekend.
The outer bands of the large storm are expected to make landfall in southeast Louisiana on Tuesday night or early Wednesday.
The National Weather Service said the system could bring as much as 2 to 4 inches of rain from Friday through Saturday.
Total rainfall in Columbia since June 1 is 3.5 inches, which is 9 inches below normal. Once Tropical Storm Isaac makes landfall, it could bring more rain to the central Missouri area.