The cold weather forecast for Saturday shouldn’t affect interstate roadwork scheduled for this weekend, but rain predicted for Sunday afternoon might.

Here’s the rundown on planned lane closures:

Bridge joint replacement will shut down two westbound lanes of I-20 from Joseph E. Lowery Boulevard to Lawton Street, beginning at 9 p.m. Friday and continuing through 5 a.m. Monday.

Similar work will necessitate closing two eastbound lanes of I-20 between Six Flags Parkway and Fulton Industrial Boulevard during the same hours.

Two southbound lanes of I-285 will be closed all weekend between Bolton Road and Donald Lee Hollowell Parkway for concrete slab replacement.

Sign structure work will shut down one eastbound and two westbound lanes of I-285 between Buford Highway and Chamblee Dunwoody Road throughout the weekend.

As part of the reconstruction of the interchange at I-285 and Atlanta Road, contractors will shut down two southbound lanes all weekend.

Cold Saturday, rainy Sunday forecast:

Saturday will be sunny but cold, with morning lows around 27 degrees followed by afternoon highs in the upper 40s, Channel 2 meteorologist Karen Minton said.

Minton said there’s a 70 percent chance of rain later in the day on Sunday, afternoon highs in the mid-50s will follow morning lows in the mid-30s.

Big sporting events on tap:

A couple of big college football games highlight the weekend events calendar. Georgia Tech plays Clemson at noon Saturday at Bobby Dodd Stadium, while down the road in Athens, the University of Georgia takes on Auburn at 7:15 p.m. Saturday.

Other weekend events include the Hawks-Heat basketball game at 7:30 p.m. Friday at Philips Arena.