Rising temperatures and a rainy forecast have homeowners across Southern Ontario on high alert this weekend.

Much of our coverage area is under a flood warning.

The Grand River Conservation Authority says, so far, it’s just a precaution, but adds the region’s swollen rivers continue to pose a threat.

Check here for the GRCA's full list of flood watches and warnings.

An official tells CTV News flooding in Grand Valley and West Montrose wasn’t as severe as expected Friday night.

The lower campground at the West Montrose Family Camp was partially flooded, but there were no other major issues.

In a release, the GRCA writes warmer temperatures are expected to melt the remaining snow pack in the upper watershed over the weekend.

What's more, southern Ontario is expected to see heavy rainfall over the next four days.

According to Environment Canada, the system could bring more than 50 millimetres of rain to parts of the province, overwhelming already-brimming reservoirs.

The GRCA is expected to release an updated statement on Sunday.

Meanwhile, the Maitland Valley Conservation Authority issued a flood watch for Harriston on Friday.

It warned the Harriston Trailer Park and other low-lying areas could be evacuated.

Residents are asked to monitor the town website or social media for updates.

In Belleville, the city’s firefighters are so busy helping with sandbagging efforts, an outdoor burning ban was been put in place to help prevent fires.

Deputy fire chief Bruce Greatrix says residents of rural areas around the city are normally allowed to set controlled fires to get rid of their yard waste at this time of year, if they have a permit.

But the burning ban has been implemented because fire crews don't have time to respond to outdoor fires, which can quickly spread if it gets windy.

Belleville Mayor Neil Ellis declared a state of emergency Thursday because of rising water levels on the Moira River.

He says proclaiming the state of emergency allows the city to recruit volunteers to help build sand bag barriers around homes and property, among other protections.

Quinte Conservation issued a flood warning Wednesday for the Moira River, north of Belleville's urban area.

The area was inundated by flooding in the spring of 2008, and officials predict the situation could be almost as severe this year.

Flood warnings have also been issued for the Salmon and Napanee Rivers, and for the Trent River from Trenton to Hastings.

A woman and her young daughter were rescued from their Belleville home Thursday by firefighters using an inflatable raft.

With files from The Canadian Press.