CHICAGO (CBS) — Communities along the Des Plaines and Fox rivers are still monitoring water levels, which continued to rise Saturday and are expected to start receding on Sunday, according to the National Weather Service.

“Widespread heavy rain is not anticipated [Saturday], but flooding is already occurring in some areas due to recent heavy rainfall,” the weather service said.

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The Des Plaines River at Riverside was expected to rise to 8.2 feet at Riverside and to 18.6 feet at Des Plaines on Saturday night, the weather service said. Both were expected to begin receding on Sunday.

The Fox River at Algonquin Tailwater was expected to reach 13 feet before beginning to recede on Sunday, the weather service said. It could take until Thursday for the water level to drop below its major flood stage.

The city of St. Charles closed the Illinois Street Bridge and the Indiana Street Pedestrian Bridge due to rising levels of the Fox River after overnight storms. The bridges could be closed until mid-week, depending on how long it takes for the water to recede, the city said.

The Kishwaukee River in DeKalb County was also closed on Saturday until further notice due to high water levels and swift moving currents, the county said in a statement Saturday.

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For those impacted by flooding seeking resources or services, the Multi-Agency Resource Center opened Friday at 965 E. Rollins Rd. in Round Lake Beach.

Residents affected by the flooding can meet regional and statewide disaster organizations, including the Red Cross, Salvation Army, Illinois Department of Insurance and other groups for assistance and information. Information on clean-up assistance will be provided, and the health department will have free water testing kits for those with wells.

The Salvation Army has also set up a toll-free Donation Hotline at (888) 369-1349 for those who wish to donate items.

Four counties have been added to a state disaster proclamation, including Cook, Kane, Lake and McHenry.

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