Washington: Today - Sunny, High in the mid 70s, low near 50. The chance of rain is near zero. Friday - Partly cloudy, high in the upper 70s.

Maryland: Today - Sunny, high in the mid 70s, low near 50. Friday - Partly cloudy, high in the mid 70s.

Virginia: Today - Sunny, highs in the low to mid 70s, low near 50. Friday - Partly cloudy, high in the mid 70s.

Extended Area Outlook for Saturday through Monday - Variable cloudiness with a chance of rain during the weekend, clearing Monday. Highs will average in the 70s, lows in the 50s. Normal Washington temperatures for the period are a high of 75 and a low 55.

Lower Potomac and the Chesapeake Bay - Fair with northwesterily winds decreasing to 6 knots or less by nightfall. Waves will be less than 2 feet. Visibility will be from 3 to 5 miles.

West Virginia: Today - Partly cloudy, highs in the upper 60s to mid 70s lows in the upper 40s to mid 50s. Friday - Partly cloudy with a chance of showers, high near 70.

The Nationa Weather Service forecasts the Potomac River stage at Little Falls should remain near 2.7 feet through today.

The National Weather Forecast for today - Showers are expected over northern California, the Pacific Northwest, the northern portions of the Rockies and the Great Plains. Scattered showers and thundershowers will cover the Mississipoi Valley, the lower Ohio and Tennessee Valleys, Florida and northern Maine. Elsewhere skies will be sunny or partly cloudy. There will be little change in temperatures. Cool weather will persist over the northern third of the nation, with warm readings, from Texas over the Gulf Coast region and Florida. Other areas will be mild.

ALVANAC DATA FOR Sept. 29, 1977: Sun rises 7:02 a.m., sets 6:54 p.m.; Moon rises 8:18 p.m., sets 9:11 a.m. Tides: High 10:14 a.m. and 12:34 p.m.; low 4:41 a.m. and 4:52 p.m. High and low tides at the following locations can be obtained by subtracting the hours indicated from the tides above. Annapolis (1 1/2); Bloody Point Lighthouse (4 1/2); Deale, Md. (4 1/2); Colnnial Beach (6); Norfolk ( 1 1/2); Virgina Beach (1); Solomans Island (6 1/2); Point Lookout (7). Pollen Count 32, Ragweed (note: More than 7 is considered undesirable.)

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 3 p.m. period was 26 for the pollutant, photochemical oxidants. Index values between 25 and 49 indicate fair air quality. When the index exceeds 100 the air is considered very unhealthy and individuals with lung, heart and eye aliments are urged to restrict their activity. The forecast for today indicates that the air quality will improve. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid(COLUMN)67(COLUMN)76 1 a.m.(COLUMN)66(COLUMN)73 2 a.m.(COLUMN)65(COLUMN)75 3 a.m.(COLUMN)64(COLUMN)81 4 a.m.(COLUMN)64(COLUMN)81 5 a.m.(COLUMN)64(COLUMN)78 6 a.m.(COLUMN)64(COLUMN)78 7 a.m.(COLUMN)63(COLUMN)78 8 a.m.(COLUMN)64(COLUMN)73 9 a.m.(COLUMN)64(COLUMN)73 10 a.m.(COLUMN)67(COLUMN)64 11 a.m.(COLUMN)70(COLUMN)55 12 noon(COLUMN)71(COLUMN)51 1 p.m.(COLUMN)72(COLUMN)45 2 p.m.(COLUMN)75(COLUMN)42 3 p.m.(COLUMN)76(COLUMN)39 4 p.m.(COLUMN)75(COLUMN)39 5 p.m.(COLUMN)76(COLUMN)37 6 p.m.(COLUMN)74(COLUMN)38 7 p.m.(COLUMN)72(COLUMN)43(END TABLE) Temperatures ending 8 a.m. (EDT) yesterday.(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN) 69(COLUMN)44 Alboquerque(COLUMN) 80(COLUMN)59 Amarillo(COLUMN) 90(COLUMN)71 Anchorage(COLUMN) 58(COLUMN)54 Asheville(COLUMN) 76(COLUMN)57 Atlanta(COLUMN) 82 60 Atlantic City(COLUMN) 96(COLUMN)75 Austin(COLUMN) 84(COLUMN)58 Billings(COLUMN) 70(COLUMN)43 Birmingham(COLUMN) 82(COLUMN)62 Bismarck(COLUMN)69(COLUMN)44 Bolse(COLUMN) 75(COLUMN)51 Boston(COLUMN) 76(COLUMN)56 Brownsville(COLUMN) 96(COLUMN)74 Buffalo(COLUMN) 67(COLUMN)56 Burlington, Vt.(COLUMN) 64(COLUMN)53 Casder(COLUMN) 79(COLUMN)43 Charleston, SC(COLUMN) 90(COLUMN)69 Charleston, W. Va.(COLUMN) 72(COLUMN)53 Chevenne(COLUMN) 77(COLUMN)44 Charlotte(COLUMN) 82(COLUMN)61 Chicago(COLUMN) 63(COLUMN)51 Cincinnati(COLUMN) 79(COLUMN)46 Cleveland(COLUMN) 70(COLUMN)55 Columbia, SC(COLUMN) 89(COLUMN)62 Columbus(COLUMN) 76(COLUMN)49 Dal-Ft. Worth(COLUMN)101(COLUMN)77 Dayton(COLUMN) 76(COLUMN)45 Denver(COLUMN) 85(COLUMN)49 Des Moines(COLUMN) 71(COLUMN)50 Detroit(COLUMN) 67(COLUMN)52 Duluth(COLUMN) 57(COLUMN)38 El Paso(COLUMN) 95(COLUMN)63 Fairbanks(COLUMN) 60(COLUMN)45 Fargo(COLUMN) 66(COLUMN)45 Glagstaff(COLUMN) 57(COLUMN)54 Great Falls(COLUMN) 68(COLUMN)43 Hartford(COLUMN) 76(COLUMN)47 Helena(COLUMN) 68(COLUMN)44 Honolulu(COLUMN) 86(COLUMN)72 Houston(COLUMN) 94(COLUMN)77 Indianapolis(COLUMN) 75(COLUMN)47 Jackson(COLUMN) 90(COLUMN)72 Jacksonville(COLUMN) 92(COLUMN)74 Juneau(COLUMN) 51(COLUMN)46 Kansas City(COLUMN) 75(COLUMN)54 Las Vegas(COLUMN) 94(COLUMN)64 Little Rock(COLUMN) 84(COLUMN)66 Los Angeles(COLUMN) 77 63 Louisville(COLUMN) 81(COLUMN)52 Memphis(COLUMN) 85(COLUMN)63 Miami Beach(COLUMN) 87(COLUMN)78 Midland(COLUMN)102(COLUMN)73 Milwaukee(COLUMN) 62(COLUMN)53 Mols.-St. Paul(COLUMN) 66(COLUMN)41 Nashville(COLUMN) 82(COLUMN)57 New Orleans(COLUMN) 92(COLUMN)74 New York(COLUMN) 74(COLUMN)58 Norfolk(COLUMN) 89(COLUMN)970 North Platte(COLUMN) 78(COLUMN)53 Oklahoma City(COLUMN) 88(COLUMN)74 Omaha(COLUMN) 71(COLUMN)51 Orlando(COLUMN) 90(COLUMN)73 Philadelphia(COLUMN) 75(COLUMN)56 Phoenix(COLUMN) 85(COLUMN)72 Pittsburgh(COLUMN) 67(COLUMN)47 Portland, Me(COLUMN) 72(COLUMN)45 Portland, Or.(COLUMN) 64(COLUMN)54 Providence(COLUMN) 76(COLUMN)53 Raleigh(COLUMN) 85(COLUMN)58 Rapid City(COLUMN) 70(COLUMN)46 Reno(COLUMN) 78(COLUMN)47 Richmond(COLUMN) 87(COLUMN)62 St. Louis(COLUMN) 77(COLUMN)52 St. Prbg.-Tampa(COLUMN) 83(COLUMN)75 Salt Lake City(COLUMN) 83(COLUMN)58 San Antonio(COLUMN) 95(COLUMN)74 San Diego(COLUMN) 76(COLUMN)68 San Francisco(COLUMN) 71(COLUMN)63 San Juan(COLUMN) 87(COLUMN)77 St. Ste. Marie(COLUMN) 55(COLUMN)45 Seattle(COLUMN) 65(COLUMN)53 Shreveport(COLUMN) 91(COLUMN)71 Sloux Falls(COLUMN) 69(COLUMN)50 Spokane(COLUMN) 57(COLUMN)48 Syracuse(COLUMN) 69(COLUMN)59 Topeka(COLUMN) 81(COLUMN)55 Tucson(COLUMN) 85(COLUMN)69 Tulsa(COLUMN) 88(COLUMN)71 Washington(COLUMN) 85(COLUMN)43 Wlchita(COLUMN) 83(COLUMN)65(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)59 Amstercam(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)66 Ankara(COLUMN)cloudy(COLUMN) 3 p.m.(COLUMN)54 Athens(COLUMN)cloudy(COLUMN) 2 p.m.(COLUMN)64 Auckland(COLUMN)clear(COLUMN)mid.(COLUMN)54 Berlin(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)57 Birmingham(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)61 Brussels(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)68 Cairo(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)93 Casablanca(COLUMN)clear(COLUMN)noon(COLUMN)75 Cooenhagen(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)54 Dublin(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN)59 Geneva(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)64 Hong Kong(COLUMN)clear(COLUMN) 8 p.m.(COLUMN)82 Lisbon(COLUMN)clear(COLUMN)noon(COLUMN)77 London(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)75 Malta(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN)73 Manila(COLUMN)clear(COLUMN) 8 p.m.(COLUMN)84 Moscow(COLUMN)pt. cldy.(COLUMN) 3 p.m.(COLUMN)39 New Delhi(COLUMN)pt. cldy.(COLUMN) 5 p.m.(COLUMN)93 Nice(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)70 Osio(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)48 Paris(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN)72 Peking(COLUMN)clear(COLUMN) 8 p.m.(COLUMN)70 Rome(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN)70 Saigon(COLUMN)pt. cldy.(COLUMN) 8 p.m.(COLUMN)82 Sofia(COLUMN)pt. cldy.(COLUMN) 2 p.m.(COLUMN)48 Stockholm(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)52 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)63 Tel Aviv(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)86 Tokyo(COLUMN)cloudy(COLUMN) 9 p.m.(COLUMN)72 Tunis(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN)73 Vienna(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)54 Warsaw(COLUMN)clear(COLUMN)10 p.m.(COLUMN)50(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco cloudy(COLUMN)90(COLUMN)75 Barbados(COLUMN)fair(COLUMN)88(COLUMN)78 Bermuba(COLUMN)fair(COLUMN)80(COLUMN)76 Bogota(COLUMN)pt. cldy(COLUMN)65(COLUMN)50 Calqary(COLUMN)cloudy(COLUMN)54(COLUMN)32 Culiacan(COLUMN)cloudy(COLUMN)97(COLUMN)78 Edmonton(COLUMN)clear(COLUMN)54(COLUMN)28 Havana(COLUMN)pt. cldy(COLUMN)84(COLUMN)72 Kingston(COLUMN)fair(COLUMN)88(COLUMN)80 Montego Bay(COLUMN)pt. cldy(COLUMN)88(COLUMN)85 Mexico City(COLUMN)haze(COLUMN)77(COLUMN)57 Monterrey(COLUMN)fair(COLUMN)95(COLUMN)73 Montreat(COLUMN)cloudy(COLUMN)63(COLUMN)50 Nassau(COLUMN)pt. cldy(COLUMN)88(COLUMN)75 Ottawa(COLUMN)cloudy(COLUMN)63(COLUMN)50 Regina(COLUMN)pt. cldy(COLUMN)57(COLUMN)30 St. Kitts(COLUMN)pt. cldy(COLUMN)56(COLUMN)78 St. Thomas(COLUMN)fair(COLUMN)84(COLUMN)80 Toronto(COLUMN)pt. cldy(COLUMN)66(COLUMN)54 Vancouver(COLUMN)rain(COLUMN)59(COLUMN)50 Veracruz(COLUMN)pt. cldy(COLUMN)92(COLUMN)75 Winnipeg(COLUMN)clear(COLUMN)59(COLUMN)41(END TABLE)