The annual Capital Pride Festival, seen here in its 2011 edition, will draw thousands to Pennsylvania Avenue on Sunday afternoon. (Linda Davidson/The Washington Post)

[This post has been updated.]

Saturday and Sunday will be a very busy time for outdoor activities in the D.C. area, and the Capital Weather Gang if predicting a “fine summer weekend” for them.

These are some highlights, starting with the Capital Pride events in the District and ending with Metrorail’s weekend work schedule, which may affect your planning for attending some of these activities.

Capital Pride Parade
The annual gay pride parade is scheduled to begin at 4:30 p.m. Saturday and end about 7:30 p.m. The nearest Metrorail stop is Dupont Circle, on the Red Line, but check below for Metro’s weekend work schedule.

The parade staging area (25th Street NW between M and N streets, 24th Street between M and N streets and 23rd Street between M and P streets) will be closed to traffic at 1 p.m. Also closed will be N Street between 22nd and 25th streets and M Street between 22nd and 25th streets.

The street closings along the parade route will remain in effect till 9:30 p.m. Paraders will follow this route: East on P Street from 23rd Street NW clockwise around Dupont Circle, north on New Hampshire Avenue, east on R Street, south on 17th Street, east on P Street, then north on 14th Street to the disbanding area just past R Street. See a map on the parade Web site. The Metrorail station nearest the parade’s end is U Street, on the Green Line.

Capital Pride Festival
The Capital Pride Festival is set for Sunday on Pennsylvania Avenue NW between Third and Seventh streets. The nearest Metro station is Archives, on the Green and Yellow lines. (See the Metrorail work schedule below.) The festival exhibit hours are noon to 7 p.m. Sunday

Street closings are set to begin at 7:30 p.m. Saturday and continue till 2 a.m. Monday. These are the streets involved: Pennsylvania Avenue NW between Third and Seventh streets NW, Constitution Avenue NW between Third and Seventh streets, Fourth Street NW between Madison Drive and Pennsylvania Avenue, Sixth Street NW between C Street and Constitution Avenue. See a map on the festival’s Web site.

Soccer at FedEx Field
D.C. United has a home game at 6:30 p.m. Saturday, but it’s at FedEx Field in Landover rather than at RFK Stadium in the District. Commenter tlh239 pointed out below that this is, in fact, a double-header at FedEx, starting with a 4 p.m. match between the World Cup team from Spain and the team from El Salvador.

Before and after FedEx Field events, traffic surges on Landover Road, Central Avenue, Baltimore-Washington Parkway, Southeast-Southwest Freeway, Interstate 295/D.C. 295 and the eastern side of the Capital Beltway.

Air Force Cycling Classic
The annual Air Force Association Cycling Classic has events both Saturday and Sunday. Saturday’s main event is the Clarendon Cup. Various categories of races are scheduled to start between 8 a.m. and noon. See a pdf map of the course on the event’s Web site. The nearest Metro stop is Clarendon on the Orange Line.

Sunday’s events begin at 7 a.m. with the Challenge Ride. See a pdf map of that course. The nearest Metro station to the start and finish is Crystal City on the Blue and Yellow lines.

Bethesda festival
Imagination Bethesda, a children’s street festival celebrating the arts, is scheduled for 10 a.m. to 3 p.m. Saturday at Auburn and Norfolk Avenues. The nearest Metrorail station is Bethesda on the Red Line.

Manassas Heritage Railway Festival
The annual Heritage Railway Festival is scheduled for 10 a.m. to 4 p.m. Saturday at the Manassas train station, 9431 West St., just off Route 28 in historic downtown Manassas, south of Interstate 66. See a map on the event’s Web site.

Walk to Cure Arthritis
The Nationals are on the West Coast this weekend, but look for some extra traffic around Nationals Park on Sunday morning for the Walk to Cure Arthritis, which begins at 9 a.m. in and around the stadium. There will be parking for the event in Garage C. The closest Metrorail station is Navy Yard, on the Green Line.

Bethesda road closing
After midnight Friday morning, the Maryland State Highway Administration will close a 1,000-foot section of Cedar Lane between Rockville Pike and Elmhirst Parkway, just north of the Walter Reed Military Medical Center in Bethesda. The closing, scheduled to continue till no later than Aug. 22, will allow workers to replace underground pipes and install a new traffic signal, but it’s part of a larger project to improve the Rockville Pike/Cedar Lane intersection. The intersection has been more heavily used since the federal base consolidation expanded use of the medical center.

During the closing on Cedar Lane, drivers will be directed to Strathmore Avenue/Knowles Avenue), Rockville Pike and Summit Avenue. They won’t be able to reach Elmhirst Parkway from Cedar Lane.

Ride On bus route 34, which takes passengers between the Wheaton and Medical Center Metro stations, will bypass Cedar Lane between Parkhill and Beach drives, skipping three stops in each direction. This map on the Ride On Web site shows the detour.

Metro weekend work
Metro plans to work on all five rail lines from 10 p.m. Friday through the system’s midnight closing on Sunday. All stations will be open, but in some sections, trains will share tracks around work zones. Train arrival times are often less frequent than normal to minimize delays around these work zones. By Friday afternoon each week, Metro adjusts its online Trip Planner to incorporate these schedule changes.

Red Line. Crews will work on the tracks, fences and light poles between NoMa-Gallaudet and Rhode Island Avenue, and on a switch replacement at Shady Grove. Trains are scheduled to leave the ends of the line at Shady Grove and Glenmont every 20 minutes throughout the weekend. More trains will be in service between Grosvenor and NoMa-Gallaudet from 9 a.m. to 9 p.m. Saturday and 9 a.m. to 10 p.m. Sunday. In that zone, trains should reach platforms every 10 minutes.

Orange Line. Crews will work on the tracks between East Falls Church and West Falls Church, and on platform reconstruction between Stadium-Armory and Cheverly. All along the line, trains are scheduled to operate every 24 minutes.

Blue Line. Crews will work on the tracks, switches and communications system between Pentagon City and Reagan National Airport. Trains are scheduled to operate every 20 minutes.

Yellow Line. Same work zone as on the Blue Line. On Saturday, trains will operate every 20 minutes between Huntington and Mount Vernon Square. On Sunday, the trains will operate every 20 minutes between Huntington and College Park.

Green Line. Crews will continue work on the test track between College Park and Greenbelt for the new rail cars. The train schedule will be normal except for 9 a.m. to 9 p.m. Saturday. During those hours, trains will operate every 12 minutes between College Park and Branch Avenue, but trains will arrive at and depart from the end-of-the-line Greenbelt station every 24 minutes.