The Quad-Cities is expected to have an unseasonably warm Saturday and then see a 20-degree drop on Sunday, with six to 10 hours of rain.
National Weather Service Quad Cities is predicting a high of about 70 degrees Saturday - about 20 degrees above normal. Saturday night's low is expected to be about 56 degrees.
On Sunday, expect "a good, old-fashioned late autumn cold front" to hit mid- to late day, NWS meteorologist Bill Nichols said, adding that temperatures will drop from a high of 61 to about 41 degrees in three to six hours.
"We could see six to 10 hours of rain, maybe some embedded thunder, and the rain will be moderate to heavy at times," Mr. Nichols said.
Total rainfall is expected to be three-fourths to 1.5 inches. Mr. Nichols said if there is snow, it will likely only be a few flakes.
Winds are expected to be 15 to 25 mph, and thelow about 31 degrees.
He said when Sunday's rainfall is combined with the rain the area has received over the past six weeks, there will be enough soil moisture to get through the winter.
According to the NWS, there is a slight chance for rain or snow Monday, with a high of 37 degrees and low of 24 degrees.