Washington: Today - Sunny and warm, high near 90, low near 70. Chance of rain near zero, Saturday - Sunny and warm, high in the low 90s.

Maryland and Virginia: Today - Sunny and warm, high around 90, low in the 60s. Saturday - Sunny, high around 90, low in the 60s.

Extended Area Forecast for Sunday through Tuesday: Partly cloudy, hot, and humid through the period, with a chance of afternoon or evening thunderstorms each day. High will be from the mid 80s to mid 90s. Lows will be from the mid 60s to mid 70s.

Atlantic Ocean Beaches from New Jersey to Maryland: Today - Sunny and warm high in the mid 80s. Saturday - Sunny, high in the mid 80s. Water temperature will be in mid to upper 60s.

Atlantic Ocean Beaches from Virginia to North Carolina: Today - Sunny and warm high in the mid 80s. Saturday - Sunny and warm, high in the mid to upper 80s. Water temperature will be in the 70s.

Lower Potomac and Chesapeake Bay: Fair, with visibility of five miles or more. Winds will be southern at about 10 knots. Waves in unprotected waters will be 1 foot or less.

West Virginia: Today - Sunny and warm, highs in the 80s, low in the low 60s. Saturday - Partly cloudy, highs in the 80s.

The National Weather Forecast for today. Widely scattered showers and thunderstorms will extend from the northern Rockies across the northern Plains the eastern area of the central Plains, the upper and middle Mississippi Valley region and the upper Great Lakes. Scattered thundershowers will extend from the eastern Gulf Coast across Florida and southern Georgia. Mild temperatures will cover the upper Mississippi Valley, the northern and central Plains, Rockies. Temperatures will be hot over the north Atlantic Coast states, the Ohio Valley, the southern Great Lakes, and the northern and central Pacific Coast. The remainder of the nation will be warm and sunny.

Almanac Data for today: The sun rises 5:50 a.m., sets 8:36 p.m., moon rises 7:57 a.m., sets 9:52 p.m. Tides high 10:07 a.m. and 10:35 p.m., low 4:42 a.m. and 5:11 p.m. High and low tides at the following locations may be obtained by subtracting the hours indicated from the hours above. Annapolis (3 1/4), Bloody Point Lighthouse (4 1/2), Deale Md (4 1/2), Colonial Beach (5 1/4), Norfolk (1), Virginia Beach (3/4), Solomons Island (6 1/4), Point Lookout (7).

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 3 p.m. period was 100 for the pollutant, photochemical oxidants. When the index exceeds 100-249 indicate unhealthy air quality. When the index exceeds 100 the air is considered very unhealthy and individuals with lung, heart and eye ailments are urged to restrict their activity. The forecast for today indicates that the air quality will improve.

The National Weather Service forecasts the Potomac River Stage at Little Falls should remain at 5.8 feet today. The river at Little Falls is considered dangerous for recreational purposes when the stage is above 5 feet. Local Temp. Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid.(COLUMN)68(COLUMN)73 1 a.m.(COLUMN)68(COLUMN)73 2 a.m.(COLUMN)67(COLUMN)76 3 a.m.(COLUMN)65(COLUMN)81 4 a.m.(COLUMN)64(COLUMN)81 5 a.m.(COLUMN)64(COLUMN)81 6 a.m.(COLUMN)64(COLUMN)81 7 a.m.(COLUMN)66(COLUMN)76 8 a.m.(COLUMN)69(COLUMN)68 9 a.m.(COLUMN)73(COLUMN)62 10 a.m.(COLUMN)76(COLUMN)68 11 a.m.(COLUMN)78(COLUMN)58 12 noon(COLUMN)80(COLUMN)58 1 p.m.(COLUMN)81(COLUMN)53 2 p.m.(COLUMN)82(COLUMN)48 3 p.m.(COLUMN)83(COLUMN)48 4 p.m.(COLUMN)84(COLUMN)42 5 p.m.(COLUMN)84(COLUMN)43 6 p.m.(COLUMN)83(COLUMN)46 7 p.m.(COLUMN)82(COLUMN)51(END TABLE) Temperatures ending 8 a.m. (EDT) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)81(COLUMN)54 Albuquerque(COLUMN)98(COLUMN)64 Amarillo(COLUMN)97(COLUMN)59 Anchorage(COLUMN)63(COLUMN)53 Asheville(COLUMN)15(COLUMN)63 Atlanta(COLUMN)89(COLUMN)67 Atlantic City(COLUMN)70(COLUMN)60 Austin(COLUMN)98(COLUMN)75 Baltimore(COLUMN)81(COLUMN)60 Billings(COLUMN)73(COLUMN)52 Birmingham(COLUMN)93(COLUMN)75 Bismarck(COLUMN)84(COLUMN)59 Boise(COLUMN)78(COLUMN)51 Boston(COLUMN)68(COLUMN)57 Brownsville(COLUMN)96(COLUMN)78 Buffalo(COLUMN)81(COLUMN)60 Burlington, Vt.(COLUMN)83(COLUMN)58 Casper(COLUMN)87(COLUMN)54 Charleston, S.C.(COLUMN)84(COLUMN)76 Charleston, W.Va.(COLUMN)79(COLUMN)69 Charlotte(COLUMN)78(COLUMN)67 Cheyenne(COLUMN)83(COLUMN)53 Chicago(COLUMN)84(COLUMN)70 Cincinnati(COLUMN)79(COLUMN)61 Cleveland(COLUMN)78(COLUMN)60 Columbia, S.C.(COLUMN)78(COLUMN)69 Columbus(COLUMN)78(COLUMN)60 Dal.-Ft. Worth(COLUMN)100(COLUMN)78 Dayton(COLUMN)79(COLUMN)61 Denver(COLUMN)90(COLUMN)59 Des Moines(COLUMN)95(COLUMN)68 Detroit(COLUMN)78(COLUMN)60 Duluth(COLUMN)86(COLUMN)69 El Paso (COLUMN)101(COLUMN)78 Fairbanks(COLUMN)80(COLUMN)62 Fargo(COLUMN)86(COLUMN)64 Flagstaff(COLUMN)81(COLUMN)35 Great Falls(COLUMN)65(COLUMN)48 Hartford(COLUMN)80(COLUMN)55 Helena(COLUMN)65(COLUMN)51 Honolulu(COLUMN)86(COLUMN)75 Houston(COLUMN)96(COLUMN)79 Indianapolis(COLUMN)84(COLUMN)65 Jackson, Miss.(COLUMN)99(COLUMN)75 Jacksonville(COLUMN)95(COLUMN)76 Juneau(COLUMN)63(COLUMN)51 Kansas City(COLUMN)100(COLUMN)70 Las Vegas(COLUMN)101(COLUMN)67 Little Rock(COLUMN)93(COLUMN)73 Los Angeles(COLUMN)77(COLUMN)61 Louisville(COLUMN)84(COLUMN)65 Memphis(COLUMN)92(COLUMN)72 Miami Beach(COLUMN)89(COLUMN)76 Midland-Odessa(COLUMN)97(COLUMN)70 Milwaukee(COLUMN)80(COLUMN)67 Mpls.-St. Paul(COLUMN)89(COLUMN)66 Nashville(COLUMN)88(COLUMN)68 New Orleans(COLUMN)91(COLUMN)75 New York(COLUMN)82(COLUMN)63 Norfolk(COLUMN)74(COLUMN)57 North Platte(COLUMN)94(COLUMN)61 Oklahoma City(COLUMN)97(COLUMN)76 Omaha(COLUMN)98(COLUMN)67 Orlando(COLUMN)93(COLUMN)74 Philadelphia(COLUMN)82(COLUMN)62 Phoenix(COLUMN)107(COLUMN)72 Pittsburgh(COLUMN)82(COLUMN)60 Portland, Maine(COLUMN)73(COLUMN)51 Portland Ore.(COLUMN)72(COLUMN)56 Providence(COLUMN)74(COLUMN)54 Raleigh(COLUMN)80(COLUMN)57 Rapid City(COLUMN)85(COLUMN)63 Reno(COLUMN)85(COLUMN)47 Richmond(COLUMN)81(COLUMN)55 St. Louis(COLUMN)90(COLUMN)68 St. Prbg.-Tampa(COLUMN)89(COLUMN)78 Salt Lake City(COLUMN)84(COLUMN)54 San Antonio(COLUMN)98(COLUMN)76 San Diego(COLUMN)72(COLUMN)65 San Francisco(COLUMN)67(COLUMN)53 San Juan(COLUMN)88(COLUMN)75 St. Ste Marie(COLUMN)80(COLUMN)65 Seattle(COLUMN)70(COLUMN)53 Shreveport(COLUMN)99(COLUMN)72 Sioux Falls(COLUMN)86(COLUMN)62 Spokane(COLUMN)65(COLUMN)51 Syracuse(COLUMN)85(COLUMN)56 Topeka(COLUMN)96(COLUMN)68 Tucson(COLUMN)105(COLUMN)68 Tulsa(COLUMN)99(COLUMN)77 Washington(COLUMN)83(COLUMN)64 Wichita(COLUMN)104(COLUMN)76(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)rain(COLUMN)1 p.m.(COLUMN)48 Amsterdam(COLUMN)rain(COLUMN)1 p.m.(COLUMN)54 Ankara(COLUMN)clear(COLUMN)3 p.m.(COLUMN)68 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)90 Auckland(COLUMN)clear(COLUMN)m'night(COLUMN)60 Berlin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)64 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)64 Bonn(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)69 Cairo(COLUMN)clear(COLUMN)2 p.m.(COLUMN)100 Casablanca(COLUMN)clear(COLUMN)noon(COLUMN)73 Dublin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)61 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Hong Kong(COLUMN)clear(COLUMN)8 p.m.(COLUMN)86 Jerusalem(COLUMN)clear(COLUMN)2 p.m.(COLUMN)90 Lisbon(COLUMN)clear(COLUMN)noon(COLUMN)79 London(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)67 Madrid(COLUMN)clear(COLUMN)1 p.m.(COLUMN)86 Manila(COLUMN)pt. cldy.(COLUMN)8 p.m.(COLUMN)82 Moscow(COLUMN)clear(COLUMN)3 p.m.(COLUMN)81 New Delhi(COLUMN)pt. cldy.(COLUMN)5 p.m.(COLUMN)86 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)70 Oslo(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)66 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)69 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)86 Rome(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)73 Saigon(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)79 Sofia(COLUMN)clear(COLUMN)2 p.m.(COLUMN)82 Stockholm(COLUMN)rain(COLUMN)1 p.m.(COLUMN)65 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)46 Tokyo(COLUMN)pt. cldy.(COLUMN)9 p.m.(COLUMN)82 Vienna(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)70 Warsaw(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)64(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)pt. cldy.(COLUMN)89(COLUMN)73 Bermuda(COLUMN)cloudy(COLUMN)85(COLUMN)75 Calgary(COLUMN)cloudy(COLUMN)70(COLUMN)52 Culiacan(COLUMN)cloudy(COLUMN)99(COLUMN)77 Edmonton(COLUMN)cloudy(COLUMN)75(COLUMN)52 Havana(COLUMN)pt. cldy.(COLUMN)87(COLUMN)77 Kingston(COLUMN)sunny(COLUMN)89(COLUMN)80 Montego Bay(COLUMN)rain(COLUMN)89(COLUMN)75 Mexico City(COLUMN)haze(COLUMN)77 Monterrey(COLUMN)clear(COLUMN)75 Montreal(COLUMN)clear(COLUMN)86(COLUMN)63 Nassau(COLUMN)cloudy(COLUMN)89(COLUMN)75 Ottawa(COLUMN)cloudy(COLUMN)88(COLUMN)63 Regina(COLUMN)clear(COLUMN)82(COLUMN)48 St. Kitts(COLUMN)pt. cldy.(COLUMN)87(COLUMN)75 St. Thomas(COLUMN)clear(COLUMN)89(COLUMN)77 Toronto(COLUMN)cloudy(COLUMN)81(COLUMN)59 Vancouver(COLUMN)cloudy(COLUMN)70(COLUMN)55 Veracruz(COLUMN)pt. cldy.(COLUMN)87(COLUMN)75 Winnipeg(COLUMN)clear(COLUMN)82(COLUMN)61(END TABLE)