Washington: Today - Increasing Cloudness, high in the 50s, low near 30. The chance of preciptation is 20 per cent today and 10 per cent tonight. Sunday - Partly cloudy and warmer, high in the mid 50s, s.

MARYLAND: Today - Increasing cloudiness, high in the low, 50s low near 30 Sunday - Fair, high in the low 60s.

Virginia: Fair, high near 60, low the 30s. Sunday - Varianie cloudiness, high in the 60s.

Extended Area Outlook for Monday through Wednesday: Fair Monday and Tuesday with a chance of rain Wednesday. Daytime highs will be in the 70s with losw in the 50s. Normal Washington tempertures for the period are a high of 66 and a low of 44.

West Virginia: Today - Sunny and cool with highs ranging from the mid 40s in the north to near 60 Sunday - Partly cloudy, highs in the upper 60s to mid 600s.

Lower Potomac and Chesapeake Bay: Today - Variable cloudiness with winds light and variable at 6 to 12 knots. Visibility will be more than 5 miles. Waves in unprotected waters will average 2 feet or less.

The National Weather Forecast for Today - Most of the nation will be sunny, except for snow flurries in northern Mane and rain showers over the Pacific northeast through the northern half of the intermountain region into the northern Rockies and northern Arizona. It will also be cool from the upper Great Lakes through the Carolinas and northeastward to the Atlantic. It will also be cool in the Pacific Northwest, Idaino, Neveda and California. Unreasonably warm temperatures will prevail over the central and northern Great Lakes through the Carolinas and northeastward into the upper and mid Mississippi Valley. The remainder of the nation will be seasonably mild.

Almanac Data for April 9. Sun rises 5:41 a.m., sets 6:39 p.m. noon rises midnight, sets 10:13 a.m. Tides: High 12:10 p.m., (DA) 6:31 a.m. and 7:15 p.m. High and low tides at the following location can be obtained by subtracting the hours indicated from the tides above Annapolis (3 1/2); Bloody Point Lighthouse (4 1/2); Deale Md., (4 1/2); Colonial Beach (8 1/2); Norfolk (1 1/2); Virginia Beach In the 30s.Solonons Island (6 1/2); Point Lookout (7).

The Council of Governments Quality Index for yesterday showed the high reading in the Washington area during the 3 p.m. period was 23 for the pollutant, photochemical oxidnats. Index values between 0 and 24 indicate good air quality. When the index exceeds 100 the air become hazardous and persons with lung heart and eye problems should restrict their activity. The forecast for today indicates the air quality will deteriorate slightly.

The National Weather Service forcasts that the Potomac Rivaer stare at Little Falls will decrease at 6.0 feet. Stages about 5.0 feet are considered hazardous for recreation purposes. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN) H. Local Temp., Humidity 12 mid(COLUMN)51(COLUMN)50 1 a.m.(COLUMN)50(COLUMN)51 2 a.m.(COLUMN)50(COLUMN)52 3 a.m.(COLUMN)48(COLUMN)56 4 a.m.(COLUMN)45(COLUMN)65 5 a.m.(COLUMN)52(COLUMN)50 6 a.m.(COLUMN)51(COLUMN)52 7 a.m.(COLUMN)50(COLUMN)56 8 a.m.(COLUMN)40(COLUMN)52 9 a.m.(COLUMN)50(COLUMN)46 10 a.m.(COLUMN)51(COLUMN)50 11 a.m.(COLUMN)52(COLUMN)36 12 noon(COLUMN)52(COLUMN)33 1 p.m.(COLUMN)53(COLUMN)30 2 p.m.(COLUMN)52(COLUMN)32 3 p.m.(COLUMN)52(COLUMN)29 4 p.m.(COLUMN)52(COLUMN)28 5 p.m.(COLUMN)51(COLUMN)27 6 p.m.(COLUMN)49(COLUMN)27 7 p.m.(COLUMN)46(COLUMN)30(END TABLE)(TABLE) CIty(COLUMN) H.(COLUMN).L. Temperatures ending 7 a.m. (EST) yesterday: Albany(COLUMN)41(COLUMN)31 Albuquerque(COLUMN)75(COLUMN)42 Amarillo(COLUMN)80(COLUMN)50 Anchorage(COLUMN)42(COLUMN)32 Asheville(COLUMN)73(COLUMN)41 Atlanta(COLUMN)76(COLUMN)49 Atlantic City(COLUMN)47(COLUMN)40 Austin(COLUMN)80(COLUMN)51 Baltimore(COLUMN)57(COLUMN)41 Billings(COLUMN)73(COLUMN)44 Birmingham(COLUMN)82(COLUMN)49 Bismarck(COLUMN)66(COLUMN)35 Boise(COLUMN)79(COLUMN)54 Boston(COLUMN)44(COLUMN)36 Brownsville(COLUMN)81(COLUMN)55 Buffalo(COLUMN)37(COLUMN)20 Burlington, Vt.(COLUMN)28(COLUMN)31 Casper(COLUMN)69(COLUMN)36 Charleston, S.C.(COLUMN)66(COLUMN)58 Charleston, W.V.(COLUMN)67(COLUMN)41 Charlotte(COLUMN)68(COLUMN)44 Chevenne(COLUMN)68(COLUMN)35 Chicago(COLUMN)63(COLUMN)30 Cincinnati(COLUMN)69(COLUMN)37 Cleveland(COLUMN)46(COLUMN)26 Columbia, S.C.(COLUMN)76(COLUMN)53 Colubus(COLUMN)64(COLUMN)28 Dale Ft. North(COLUMN)82(COLUMN)31 Dayton(COLUMN)66(COLUMN)29 Denver(COLUMN)73(COLUMN)38 Des Moines(COLUMN)69(COLUMN)38 Detroit(COLUMN)64(COLUMN)23 Duluth(COLUMN)37(COLUMN)75 El Paso(COLUMN)82(COLUMN)49 Farbanks(COLUMN)29(COLUMN)05 Fargo(COLUMN)46(COLUMN)26 Flagstaff(COLUMN)69(COLUMN)29 Great Falls(COLUMN)73(COLUMN)44 Hartford(COLUMN)46(COLUMN)36 Helena(COLUMN)74(COLUMN)32 Honolulu(COLUMN)82(COLUMN)71 Houston(COLUMN)80(COLUMN)62 Indianapolis(COLUMN)68(COLUMN)33 Jackson(COLUMN)81(COLUMN)59 Jacksonville(COLUMN)74(COLUMN)48 Jureau(COLUMN)45(COLUMN)36 Kansas City(COLUMN)80(COLUMN)48 Las Vegas(COLUMN)90(COLUMN)59 Little Rock(COLUMN)86(COLUMN)61 Los Angeles(COLUMN)73(COLUMN)55 Louisville(COLUMN)77(COLUMN)43 Memphis(COLUMN)84(COLUMN)58 Miami Beach(COLUMN)79(COLUMN)70 Midland(COLUMN)80(COLUMN)46 Millwadkee(COLUMN)58(COLUMN)27 Mpis St. Paul(COLUMN)55(COLUMN)29 Nashville(COLUMN)79(COLUMN)51 New Orleans(COLUMN)80(COLUMN)50 New York(COLUMN)47(COLUMN)41 Norfolk(COLUMN)58(COLUMN)47 North Platte(COLUMN)76(COLUMN)37 Oklahoma City(COLUMN)84(COLUMN)50 Omaha(COLUMN)77(COLUMN)41 Orlando(COLUMN)76(COLUMN)45 Philadelphia(COLUMN)52(COLUMN)40 Phoenix(COLUMN)96(COLUMN)63 Pittsburgh(COLUMN)43(COLUMN)26 Portland, Me.(COLUMN)38(COLUMN)26 Portland, Ore.(COLUMN)77(COLUMN)49 Providence(COLUMN)45(COLUMN)36 Raleigh(COLUMN)61(COLUMN)47 Rapld City(COLUMN)57(COLUMN)38 Reno(COLUMN)81(COLUMN)51 Richmond(COLUMN)59(COLUMN)45 St. Louis(COLUMN)78(COLUMN)41 St. Prbg. Tampa(COLUMN)77(COLUMN)49 Salt Lake City(COLUMN)74(COLUMN)51 San Antonio(COLUMN)80(COLUMN)49 San Diego(COLUMN)67(COLUMN)50 San Francisco(COLUMN)55(COLUMN)51 San Juan(COLUMN)84(COLUMN)73 St. Ste. Marie(COLUMN)31(COLUMN)02 Seattle(COLUMN)69(COLUMN)48 Shreveport(COLUMN)81(COLUMN)52 Sioux Falls(COLUMN)65(COLUMN)33 Spokane(COLUMN)81(COLUMN)49 Syracuse(COLUMN)43(COLUMN)25 Topeka(COLUMN)83(COLUMN)42 Tucson(COLUMN)82(COLUMN)58 Tulsa(COLUMN)87(COLUMN)51 Washington(COLUMN)56(COLUMN)45 Wichita(COLUMN)82(COLUMN)46(END TABLE) Temperatures Abroad Yesterday(TABLE) City (COLUMN)Weather(COLUMN)High(COLUMN)Low Aberdeen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Amsterdam(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)36 Ankara(COLUMN)pt. cldy.(COLUMN)3 p.m.(COLUMN)65 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)65 Auckland(COLUMN)clear(COLUMN)midnight(COLUMN)64 Berlin(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)43 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)43 Brussels(COLUMN)snow(COLUMN)1 p.m.(COLUMN)34 Cairo(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)82 Casablanca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)61 Copenhagen(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)32 Dublin(COLUMN)rain(COLUMN)1 p.m.(COLUMN)41 Geneva(COLUMN)rain(COLUMN)1 p.m.(COLUMN)37 Hong kong(COLUMN)pt. cldy.(COLUMN)8 p.m.(COLUMN)77 Litbon(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)57 London(COLUMN)clear(COLUMN)1 p.m.(COLUMN)49 Madrid(COLUMN)clear(COLUMN)1 P.m.(COLUMN)50 Malta(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)73 Mantla(COLUMN)clear(COLUMN)8 p.m.(COLUMN)82 Moscow(COLUMN)pt. cldy.(COLUMN)3 p.m.(COLUMN)57 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)90 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)61 Oslo(COLUMN)clear(COLUMN)1 p.m.(COLUMN)36 Paris(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)37 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)57 Rome(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Salgon(COLUMN)clear(COLUMN)8 p.m.(COLUMN)81 Sofla(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)66 Stockholm(COLUMN)clear(COLUMN)1 p.m.(COLUMN)27 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)55 Tel Aviv(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)75 Tokyo(COLUMN)cloudy(COLUMN)9 p.m.(COLUMN)48 Tunis(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)66 Vienna(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)46 Warsaw(COLUMN)rain(COLUMN)1 p.m.(COLUMN)37(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acanblco(COLUMN)pt. cldy.(COLUMN)90(COLUMN)70 Barbados(COLUMN)pt. cldy.(COLUMN)82(COLUMN)75 Bermua(COLUMN)cloudy(COLUMN)70(COLUMN)62 Bogota(COLUMN)pt. cldy.(COLUMN)66(COLUMN)52 Culiacan(COLUMN)pt. cldy.(COLUMN)91(COLUMN)59 Havara(COLUMN)rain(COLUMN)77(COLUMN)66 Kingston(COLUMN)clear(COLUMN)87(COLUMN)75 Montego Bay(COLUMN)clear(COLUMN)87(COLUMN)75 Mexico City(COLUMN)cloudly(COLUMN)77(COLUMN)44 Montorrey(COLUMN)pt. cldy.(COLUMN)81(COLUMN)52 Nassau(COLUMN)pt. cldy.(COLUMN)75(COLUMN)70 St. Kitts(COLUMN)pt. cldy.(COLUMN)84(COLUMN)72 St. Thomas(COLUMN)clear(COLUMN)85(COLUMN)74 Veracruz(COLUMN)cloudly(COLUMN)77(COLUMN)68(END TABLE)