As many as 2 to 5 inches of rain could fall in the Dallas-Fort Worth area through Saturday, prompting the National Weather Service to issue a flash-flood watch for many North Texas counties.

Rick Mitchell, chief meteorologist for KXAS-TV (NBC5), said he expects showers and storms to pick up between 6 and 8 p.m. Friday — posing a threat to evening rush hour.

“It’s not going to be a total washout of our Friday,” he said.

Rain could taper off Saturday afternoon, but Mitchell said he wouldn’t be surprised to see showers continue. The flash-flood watch — which includes Dallas, Collin, Denton and Tarrant counties — is in effect Friday morning through Saturday afternoon and could be extended.

While the main threat this weekend will be flash flooding, severe weather can't be ruled out.

Jason Godwin, a National Weather Service meteorologist, said, “Although the overall severe weather threat will be low, decent low-level shear could result in a few strong to marginally severe storms today, especially across the southern zones, if the clouds can temporarily clear.”

The weather service reported that the best chance for severe weather would be south of Interstate 20.

For those with outdoor activities planned, Jennifer Dunn, another National Weather Service meteorologist, recommends regularly checking weather updates and warnings — and don't drive into flooded areas.

“You could potentially be saving a life by avoiding the decision to drive through a flooded area," Dunn said.

Rain chances will continue into next week.

Here’s what KXAS-TV (NBC5) has in the forecast:

Friday: 87/70, 80 percent chance of scattered thunderstorms

78/70, 80 percent chance of thunderstorms

78/70, 40 percent chance of scattered thunderstorms

86/71, 20 percent chance of storms

85/70, 30 percent chance of isolated thunderstorms