Ray K. Saunders/The Washington Post

UPDATE, 9:48 p.m.: The Nationals announced the game will be made up as part of a day-night doubleheader July 26. Thursday’s game will be made up as the 1:35 p.m. game and the originally scheduled game will be played as before at 7:05 p.m. Tickets for Thursday’s rained out game are good for the 1:35 p.m. game only. Tickets can also be exchanged for another game with available tickets of equal or lesser value.

ORIGINAL UPDATE: Thursday’s Nationals-Mets game, the finale of a three-game series, was rained out. No make-up date has been announced.

The Nationals starting rotation will stay on turn and each starter will be pushed back a day. Gio Gonzalez, originally slated to start Thursday, will pitch on Friday. Nate Karns, who has started twice in injured Ross Detwiler’s place, will start on Saturday, thus negating the need to call up right-hander Ross Ohlendorf from Class AAA Syracuse. Because of an injury to Stephen Strasburg, the Nationals would have turned to Ohlendorf. But with a rainout and Monday’s off day, the Nationals can keep their current rotation intact.

With all the juggling of the rotation because of injuries to Strasburg and Detwiler, Manager Davey Johnson welcomed the additional time off. “This is good, and even one more rainout would be better,” he said.

Initial weather forecasts call for heavy rain on Friday. The Nationals host the Minnesota Twins in a three-game series beginning Friday and, if there’s a rainout, the teams could be forced to play a doubleheader over the weekend.

Johnson said the Nationals would keep left-handed reliever Xavier Cedeno, who was called up from Syracuse as an extra arm over the next two days. The inclement weather, however, will cost Ohlendorf financially. With a promotion, Ohlendorf would have made a $900,000 prorated salary, plus the chance to earn incentives, according to a person familiar with his minor league deal.

Adam Kilgore contributed to this report