Some grain farmers in southwestern Manitoba fear their bumper crops may not get harvested if it continues raining across the region.

Farmers say the area has had consistent rainfall over the past few weeks, making the ground and their crops too moist for combining.

The southwest region saw 10 to 50 millimetres of rain last week, slowing down the harvest there, according to the provincial government's latest crop report.

Don Philips

Philips stands next to an aeration fan he uses to keep the wheat crop he has harvested from spoiling in storage. (Jill Coubrough/CBC)

Souris-area farmer Don Philips says he has harvested only 25 per cent of his crop to date, and four of his five grain bins are empty.

"This bin should be full of wheat by now," he told CBC News on Tuesday.

Philips said he finished harvesting on Sept. 11 last year. This year, he hadn't even started at that time.

"I've never had this much crop out this late before," he said, blaming the unrelenting rainfall.

Each day the crops are not in the bin, the quality of the grain erodes. However, Philips said wheat needs to dry down so it can mature before it's combined.

He has aeration fans running to keep what little grain he has harvested dry, as moist grain in storage can easily spoil.

Walt Finlay, who also farms in the Souris area, said he has only 30 per cent of his crop so far, with 600 of 3,000 acres harvested.

"We have fought mud and water all year," he said.

"From the time we started to sow — or tried to start sowing — right through to likely when we finish harvest, we are going to be fighting Mother Nature."

Finlay said he needs three weeks of good weather to get his crop harvested, or else he may have to claim crop insurance.

Philips said the late harvest will have a lasting effect, since by now he would normally be preparing the land for next year.