Washington: Today - Mostly sunny and warmer, high in the 80s, low near 60. The chance of rain is near zero through tonight. Winds will shift to the southwest at 10 to 15 mph.Tuesday - partly cloudy, high in the upper 80s.

Maryland and Virginia: Today - Mostly sunny and warmer, highs from the upper 70s to mid 80s, lows from the 50s to mid 60s. Tuesday - Partly cloudy, high in the 80s.

Extended Area Forecast for Wednesday through Friday - Chance of showers Wednesday and Thursday, warm and humid Friday. Highs will be in the 80s. lows in the 60s. Normal Washington temperatures for the period are a high of 83 and a low of 63.

Lower Potomac and Chesapeake Bay - Fair with visibility of 5 miles or more. Winds will become southwesterly at 12 knots diminishing to 5 to 10 knots by evening. Waves will average 1 to 2 feet.

Atlantic Ocean Beaches from New Jersey to North Carolina: Today - Sunny, high in the 70s. Water temperature will be in the upper 50s in the to the upper 60s in the south. Tuesday - Sunny, high in the 70s.

West Virgina: Today - Mostly sunny, high in the 70s, lows from the mid 40s to mid 50s. Tuesday - Partly cloudy with a chance of showers and thundershowers, highs from the mid 70s to low 80s.

The National Weather Forecast for Today - Thundershowers are likely across Oklahoma and the Texas Panhandle as well as Florida and southeast Georgia. Showers will be scattered across the lower Great Lakes and northern New England. Showers and thundershowers will also be scattered across the southern from the western High Plains across the southern Plains and the lower Mississippi Valley. Skies will be mostly sunny across the nation with cool temperatures throughout the northwest half of Texas, most of Kansas, eastern Colorado and eastern Wyoming. All other readings will be mild to warm.

Washington data for yesterday: Highest temperatures since midnight yesterday, 79 degrees at 2:46 p.m. Lowest temperature since midnight 62 degrees at 6:40 a.m. Excess of temperature since June 1, 22 degrees. Deficiency of temperature since Jan. 1, 198 degrees.Record high temperature for today, 100 degrees in 1925. Record low temperature for today, 48 degrees in 1926. Relative humidity: Maximum 78 percent at 7 a.m.; minimum 34 percent at 3 p.m. 24-hour precipitation, trace. Deficiency of precipitation since June 1, 38 inches. Excess precipitation since Jan. 1, 3:20 inches. Highest observed wind since 8 a.m., 18 miles per hour from the northwest at 1:53 p.m. Peak gust since 8 a.m., 24 miles per hour from the northwest of 10:30 a.m.

Almanac Data for today: The sun rises 5:48 a.m., sets 7:47 p.m., moon rises 5:53 a.m., sets 8:19 p.m. Tides: high 1:08 a.m. and 12.46 p.m., low 7:10 a.m. and 7:31 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 1 p.m. period has 33 for the pollutant, photochemical oxidants. Index values between 25 and 29 indicate fair 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 deteriorate somewhat.

The National Weather Service forecasts the Potomac River Stage at Little Falls should remain near 3.9 feet today. Local Temps., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnite(COLUMN)70(COLUMN)84 1 a.m.(COLUMN)69(COLUMN)73 2 a.m.(COLUMN)67(COLUMN)73 3 a.m.(COLUMN)65(COLUMN)76 4 a.m.(COLUMN)64(COLUMN)75 5 a.m.(COLUMN)63(COLUMN)75 6 a.m.(COLUMN)63(COLUMN)67 7 a.m.(COLUMN)62(COLUMN)78 8 a.m.(COLUMN)64(COLUMN)75 9 a.m.(COLUMN)67(COLUMN)61 10a.m.(COLUMN)70(COLUMN)47 11 a.m.(COLUMN)73(COLUMN)41 12 noon(COLUMN)75(COLUMN)39 1 p.m.(COLUMN)76(COLUMN)37 2 p.m.(COLUMN)77(COLUMN)37 3 p.T.(COLUMN)79(COLUMN)34 4 p.m.(COLUMN)78(COLUMN)35 5 p.m.(COLUMN)79(COLUMN)35 6 p.m.(COLUMN)78(COLUMN)36 7 p.m.(COLUMN)76(COLUMN)37(END TABLE) Temperatures ending 8 a.m. (EDT) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)63(COLUMN)46 Albuquerque(COLUMN)88(COLUMN)57 Amarillo(COLUMN)88(COLUMN)57 Anchorage(COLUMN)59(COLUMN)45 Asheville(COLUMN)78(COLUMN)58 Atlanta(COLUMN)83(COLUMN)65 Atlantic City(COLUMN)64(COLUMN)55 Austin(COLUMN)83(COLUMN)70 Baltimore(COLUMN)80(COLUMN)57 Billings(COLUMN)70(COLUMN)48 Birmingham(COLUMN)80(COLUMN)63 Bismarck(COLUMN)72(COLUMN)53 Boise(COLUMN)75(COLUMN)49 Boston(COLUMN)72(COLUMN)59 Brownsville(COLUMN)91(COLUMN)73 Buffalo(COLUMN)68(COLUMN)44 Burlington, Vt.(COLUMN)71(COLUMN)52 Casper(COLUMN)66(COLUMN)45 Charleston, S.C.(COLUMN)83(COLUMN)71 Charleston, W.V.(COLUMN)72(COLUMN)48 Charlotte(COLUMN)84(COLUMN)64 Cheyenne(COLUMN)57(COLUMN)39 Chicago(COLUMN)75(COLUMN)47 Cincinnati(COLUMN)77(COLUMN)50 Cleveland(COLUMN)67(COLUMN)45 Columbia, S.C.(COLUMN)85(COLUMN)38 Columbus(COLUMN)73(COLUMN)49 Dal.-Ft. Worth(COLUMN)89(COLUMN)67 Dayton(COLUMN)74(COLUMN)54 Denver(COLUMN)62(COLUMN)50 Des Moines(COLUMN)80(COLUMN)52 Detroit(COLUMN)70(COLUMN)40 Duluth(COLUMN)70(COLUMN)53 El Paso(COLUMN)92(COLUMN)67 Fairbanks(COLUMN)67(COLUMN)45 Fargo(COLUMN)72(COLUMN)53 Flagstaff(COLUMN)77(COLUMN)34 Great Falls(COLUMN)77(COLUMN)48 Hartford(COLUMN)75(COLUMN)53 Helena(COLUMN)78(COLUMN)47 Honolulu(COLUMN)85(COLUMN)79 Houston(COLUMN)80(COLUMN)70 Indianapolis(COLUMN)79(COLUMN)55 Jackson(COLUMN)84(COLUMN)65 Jacksonville(COLUMN)88(COLUMN)73 Juneau(COLUMN)75(COLUMN)50 Kansas City(COLUMN)72(COLUMN)56 Las Vegas(COLUMN)100(COLUMN)67 Little Rock(COLUMN)79(COLUMN)64 Los Angeles(COLUMN)74(COLUMN)58 Louisville(COLUMN)80(COLUMN)53 Memphis(COLUMN)82(COLUMN)65 Miami Beach(COLUMN)86(COLUMN)80 Midland(COLUMN)78(COLUMN)61 Milwaukee(COLUMN)67(COLUMN)49 Mpls.-St. Paul(COLUMN)74(COLUMN)50 Nashville(COLUMN)83(COLUMN)60 New Orleans(COLUMN)81(COLUMN)71 New York(COLUMN)76(COLUMN)53 Norfolk(COLUMN)89(COLUMN)66 North Platte(COLUMN)73(COLUMN)52 Oklahoma(COLUMN)79(COLUMN)60 Omaha(COLUMN)77(COLUMN)55 Orlando(COLUMN)93(COLUMN)73 Philadelphia(COLUMN)80(COLUMN)56 Phoenix(COLUMN)102(COLUMN)67 Pittsburgh(COLUMN)75(COLUMN)45 Portland, Me.(COLUMN)65(COLUMN)53 Portland, Or.(COLUMN)86(COLUMN)60 Providence(COLUMN)76(COLUMN)56 Raleigh(COLUMN)84(COLUMN)65 Rapid City(COLUMN)70(COLUMN)49 Reno(COLUMN)80(COLUMN)41 Richmond(COLUMN)88(COLUMN)62 St. Louis(COLUMN)76(COLUMN)56 St. Prbg.-Tampa(COLUMN)88(COLUMN)75 Salt Lake City(COLUMN)73(COLUMN)48 San Antonio(COLUMN)87(COLUMN)69 San Diego(COLUMN)75(COLUMN)65 San Francisco(COLUMN)61(COLUMN)51 San Juan(COLUMN)81(COLUMN)76 St. Ste. Marie(COLUMN)64(COLUMN)37 Seattle(COLUMN)87(COLUMN)60 Shreveport(COLUMN)83(COLUMN)63 Sioux Falls(COLUMN)72(COLUMN)47 Spokane(COLUMN)85(COLUMN)54 Syracuse(COLUMN)68(COLUMN)44 Topeka(COLUMN)73(COLUMN)54 Tucson(COLUMN)98(COLUMN)65 Tulsa(COLUMN)81(COLUMN)61 Washington(COLUMN)85(COLUMN)62 Wichita(COLUMN)75(COLUMN)56(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)haze(COLUMN)1 p.m.(COLUMN)66 Amsterdam(COLUMN)clear(COLUMN)1 p.m.(COLUMN)77 Ankara(COLUMN)pt. cldy.(COLUMN)3 p.m.(COLUMN)68 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)79 Berlin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)77 Birmingham(COLUMN)clear(COLUMN)1 p.m.(COLUMN)75 Bonn(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)81 Brussels(COLUMN)clear(COLUMN)1 p.m.(COLUMN)77 Casablanca(COLUMN)cloudy(COLUMN)noon(COLUMN)68 Copenhagen(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)75 Dublin(COLUMN)rain(COLUMN)1 p.m.(COLUMN)57 Geneva(COLUMN)clear(COLUMN)1 p.m.(COLUMN)73 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)79 Lisbon(COLUMN)cloudy(COLUMN)noon(COLUMN)66 London(COLUMN)rain(COLUMN)1 p.m.(COLUMN)77 Madrid(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)73 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)77 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)82 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)63 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)109 Nice(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)73 Oslo(COLUMN)clear(COLUMN)1 p.m.(COLUMN)77 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)73 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)68 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)75 Sofia(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)72 Stockholm(COLUMN)clear(COLUMN)1 p.m.(COLUMN)72 Sydney(COLUMN)pt. cldy.(COLUMN)10 p.m.(COLUMN)57 Tokyo(COLUMN)cloudy(COLUMN)9 p.m.(COLUMN)64 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)81 Vienna(COLUMN)clear(COLUMN)1 p.m.(COLUMN)79 Warsaw(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)75(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)pt. cldy.(COLUMN)88(COLUMN)79 Bermuda(COLUMN)pt. cldy.(COLUMN)81(COLUMN)75 Bogota(COLUMN)pt. cldy.(COLUMN)68(COLUMN)49 Calgary(COLUMN)clear(COLUMN)79(COLUMN)46 Edmonton(COLUMN)clear(COLUMN)82(COLUMN)46 Havana(COLUMN)cloudy(COLUMN)91(COLUMN)77 Kingston(COLUMN)cloudy(COLUMN)90(COLUMN)77 Montego Bay(COLUMN)pt. cldy.(COLUMN)90(COLUMN)73 Mexico City(COLUMN)cloudy(COLUMN)73(COLUMN)59 Monterrey(COLUMN)fair(COLUMN)86(COLUMN)77 Montreal(COLUMN)clear(COLUMN)68(COLUMN)45 Nassau(COLUMN)pt. cldy.(COLUMN)88(COLUMN)76 Ottawa(COLUMN)clear(COLUMN)66(COLUMN)48 Regina(COLUMN)clear(COLUMN)81(COLUMN)43 St. Kitts(COLUMN)pt. cldy.(COLUMN)88(COLUMN)78 Toronto(COLUMN)clear(COLUMN)66(COLUMN)39 Vancouver(COLUMN)clear(COLUMN)75(COLUMN)57 Veracruz(COLUMN)cloudy(COLUMN)88(COLUMN)77 Winnipeg(COLUMN)clear(COLUMN)68(COLUMN)50(END TABLE)