Washington: Today -- Partly sunny, high in upper 80s, low in low 70s. Chance of rain is 10 percent through tonight.Winds will be easterly at 10 mph. Monday -- Cloudy with a chance of showers, high 84 to 89.

Maryland and Virginia: Today --Mostly sunny, high in the 80s, low in the 60s. Monday -- Cloudy with a chance of showers, high in 80s.

Lower Potomac and Chesapeake Bay: Today -- Fair, visibility more than five miles. Winds will be easterly at 12 knots. Waves in unprotected waters will be 2 feet.

Atlantic Ocean Beaches from New Jersey to North Carolina: Today --Partly sunny, high in mid 70s to near 80. Monday -- Cloudy with a chance of showers, high near 80. Water temperatures will be in the mid 70s in the north and upper to around 80 in the south.

Extended Area Outlook for Tuesday through Thursday: Fair and warm through the period. Highs will range from the 80s to around 90, but cooling into the mid 80s by Thursday. Lows will be in the 60s. Normal Washington temperatures for the period will be a high of 84 and a low of 65.

The National Weather Forecast for today -- Showers and thunderstorms will extend from the upper and middle Mississippi Valley the the upper Great Lakes and lower Ohio Valley. Widely scattered through portions of the Pacific northwest, from the Rockies to the Plains, along the Gulf of Mexico coast area, and through parts of the South and middle Atlantic Coast area. Skies will be mostly sunny from the southern Pacific Coast area into the southern and central Plateau, from the northern Rockies into Montana, and over much of the north Atlantic Coast region. Temperatures will be mostly cool from the north and central Pacific Coast region into the western portion of the northern and central Plains, and from the Great Lakes through the north Atlantic Coast states. Most of the remainder of the nation will continue warm.

Almanac Date for today: The sun rises 6:32 a.m., sets 7:42 p.m.; moon rises 12:17 a.m. sets 2:46 p.m. Tides: high 2:52 a.m. and 3:21 p.m., low 9:51 a.m. and 11:05 p.m. High and low tides at the following locations may be obtained by subtracting the hours indicated from the hours above: Annapolis (3 1/2), Bloody Point Lighthouse (4 1/2), Deale, Md. (4 1/2), colonial Beach (5 1/4), Norfold (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 12 to 1 p.m. period was 35 for the pollutant, photochemical oxidants. Index values between 0 and 49 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 National Weather Service forecasts the Potomac River Stage at Little Falls should remain at 3.2 feet today.

Local Temps., Humidity (TABLE) Time(COLUMN)T.(COLUMN)H. 12 midngt(COLUMN)78(COLUMN)74 1 a.m.(COLUMN)78(COLUMN)74 2 a.m.(COLUMN)77(COLUMN)77 3 a.m.(COLUMN)77(COLUMN)77 4 a.m.(COLUMN)76(COLUMN)79 5 a.m.(COLUMN)76(COLUMN)79 6 a.m.(COLUMN)76(COLUMN)77 7 a.m.(COLUMN)76(COLUMN)79 8 a.m.(COLUMN)76(COLUMN)79 9 a.m.(COLUMN)77(COLUMN)77 10 a.m.(COLUMN)78(COLUMN)74 11 a.m.(COLUMN)80(COLUMN)69 12 noon(COLUMN)83(COLUMN)63 1 p.m.(COLUMN)84(COLUMN)61 2 p.m.(COLUMN)86(COLUMN)57 3 p.m.(COLUMN)86(COLUMN)57 4 p.m.(COLUMN)88(COLUMN)54 5 p.m.(COLUMN)85(COLUMN)59 6 p.m.(COLUMN)84(COLUMN)61(END TABLE)

Temperatures ending 8 a.m. (EDT) yesterday: (TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)58(COLUMN)54 Albuquerque(COLUMN)87(COLUMN)59 Amarillo(COLUMN)93(COLUMN)68 Anchorage(COLUMN)73(COLUMN)58 Asheville(COLUMN)89(COLUMN)66 Atlanta(COLUMN)91(COLUMN)71 Atlantic City(COLUMN)74(COLUMN)63 Austin(COLUMN)97(COLUMN)76 Baltimore(COLUMN)89(COLUMN)71 Billings(COLUMN)94(COLUMN)58 Birmingham(COLUMN)93(COLUMN)71 Bismarc k(COLUMN)92(COLUMN)65 Boise(COLUMN)81(COLUMN)52 Boston(COLUMN)63(COLUMN)58 Brownsville(COLUMN)94(COLUMN)74 Buffalo(COLUMN)68(COLUMN)57 Burlington(COLUMN)66(COLUMN)50 Casper(COLUMN)90(COLUMN)58 Charleston, S.C.(COLUMN)94(COLUMN)77 Charleston, WVa.(COLUMN)88(COLUMN)68 Charlotte(COLUMN)91(COLUMN)73 Cheyenne(COLUMN)80(COLUMN)49 Chicago(COLUMN)80(COLUMN)70 Cincinnati(COLUMN)89(COLUMN)72 Cleveland(COLUMN)79(COLUMN)59 Columbia, S.C.(COLUMN)94(COLUMN)70 Columbus(COLUMN)88(COLUMN)64 Dal.-Ft. Worth(COLUMN)100(COLUMN)79 Dayton(COLUMN)86(COLUMN)64 Denver(COLUMN)85(COLUMN)56 Des Moines(COLUMN)88(COLUMN)73 Detroit(COLUMN)84(COLUMN)66 Duluth(COLUMN)63(COLUMN)59 El Paso(COLUMN)81(COLUMN)65 Fairbanks(COLUMN)67(COLUMN)43 Fargo(COLUMN)86(COLUMN)65 Flagstaff(COLUMN)80(COLUMN)39 Great Falls(COLUMN)89(COLUMN)57 Hartford(COLUMN)60(COLUMN)54 Helena(COLUMN)85(COLUMN)53 Honolulu(COLUMN)87(COLUMN)75 Houston(COLUMN)92(COLUMN)80 Indianapolis(COLUMN)88(COLUMN)71 Jackson, Miss.(COLUMN)96(COLUMN)72 Jacksonville(COLUMN)89(COLUMN)66 Juneau(COLUMN)69(COLUMN)43 Kansas City(COLUMN)98(COLUMN)74 Las Vegas(COLUMN)99(COLUMN)65 Little Rock(COLUMN)100(COLUMN)75 Los Angeles(COLUMN)81(COLUMN)63 Louisville(COLUMN)98(COLUMN)71 Memphis(COLUMN)96(COLUMN)74 Miami Beach(COLUMN)86(COLUMN)79 Midland-Odessa(COLUMN)91(COLUMN)68 Milwaukee(COLUMN)68(COLUMN)63 Mnnpls.-St. Paul(COLUMN)86(COLUMN)69 Nashville(COLUMN)95(COLUMN)71 New Orleans(COLUMN)92(COLUMN)70 New York(COLUMN)71(COLUMN)60 Norfolk(COLUMN)93(COLUMN)72 North Platte(COLUMN)90(COLUMN)65 Oklahoma City(COLUMN)101(COLUMN)74 Omaha(COLUMN)89(COLUMN)72 Orlando(COLUMN)89(COLUMN)72 Philadelphia(COLUMN)78(COLUMN)66 Phoenix(COLUMN)106(COLUMN)76 Pittsburgh(COLUMN)85(COLUMN)56 Portland, Me.(COLUMN)67(COLUMN)46 Portland, Ore.(COLUMN)72(COLUMN)49 Providence(COLUMN)62(COLUMN)58 Raleigh(COLUMN)93(COLUMN)70 Rapid City(COLUMN)96(COLUMN)57 Reno(COLUMN)83(COLUMN)39 Richmond(COLUMN)93(COLUMN)72 St. Louis(COLUMN)97(COLUMN)67 St. Prbg.-Tampa(COLUMN)90(COLUMN)75 Salt Lake City(COLUMN)90(COLUMN)56 San Antonio(COLUMN)93(COLUMN)73 San Diego(COLUMN)76(COLUMN)65 San Francisco(COLUMN)70(COLUMN)55 San Juan(COLUMN)89(COLUMN)77 St. Ste. Marie(COLUMN)63(COLUMN)54 Seattle(COLUMN)71(COLUMN)53 Shreveport(COLUMN)99(COLUMN)73 Sioux Falls(COLUMN)83(COLUMN)66 Spokane(COLUMN)70(COLUMN)45 Syracuse(COLUMN)66(COLUMN)56 Topeka(COLUMN)99(COLUMN)67 Tucson(COLUMN)99(COLUMN)73 Tulsa(COLUMN)105(COLUMN)81 Washington(COLUMN)93(COLUMN)75 Wichita(COLUMN)102(COLUMN)77(END TABLE)

Temperatures Abroad YEsterday (TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)Pt. cldy(COLUMN)1 p.m.(COLUMN)63 Amsterdam(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)61 Ankara(COLUMN)clear(COLUMN)3 p.m.(COLUMN)77 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)86 Auckland(COLUMN)cloudy(COLUMN)12 a.m.(COLUMN)54 Berlin(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)63 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)63 Bonn(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)59 Brussels(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Casablanca(COLUMN)cloudy(COLUMN)12 p.m.(COLUMN)75 Copenhagen(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)63 Dublin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)63 Geneva(COLUMN)clear(COLUMN)1 p.m.(COLUMN)72 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)82 Lisbon(COLUMN)clear(COLUMN)12 p.m.(COLUMN)75 London(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Madrid(COLUMN)clear(COLUMN)1 p.m.(COLUMN)86 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)84 Manila(COLUMN)pt. cldy(COLUMN)8 p.m.(COLUMN)77 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)70 New Delhi(COLUMN)pt. cldy(COLUMN)5 p.m.(COLUMN)93 Nice(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)79 Oslo(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)66 Paris(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)64 Peking(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)79 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)81 Saigon(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)77 Sofia(COLUMN)clear(COLUMN)2 p.m.(COLUMN)77 Stockholm(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)57 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)54 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)79 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)84 Vienna(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)64 Warsaw(COLUMN)rain(COLUMN)1 p.m.(COLUMN)54(END TABLE)

Temperatures (Western Hemisphere) (TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)pt. cldy(COLUMN)90(COLUMN)79 Barbados(COLUMN)pt. cldy(COLUMN)86(COLUMN)77 Bermuda(COLUMN)pt. cldy(COLUMN)87(COLUMN)77 Bogota(COLUMN)cloudy(COLUMN)68(COLUMN)41 Calgary(COLUMN)clear(COLUMN)72(COLUMN)46 Culiacan(COLUMN)fair(COLUMN)95(COLUMN)75 Edmonton(COLUMN)clear(COLUMN)70(COLUMN)41 Havana(COLUMN)cloudy(COLUMN)86(COLUMN)77 Kingston(COLUMN)pt. cldy(COLUMN)90(COLUMN)77 Montego Bay(COLUMN)pt. cldy(COLUMN)91(COLUMN)74 Mexico City(COLUMN)pt. cldy(COLUMN)73(COLUMN)59 Monterrey(COLUMN)pt. cldy(COLUMN)96(COLUMN)76 Montreah(COLUMN)pt. cldy(COLUMN)70(COLUMN)52 Nassau(COLUMN)pt. cldy(COLUMN)87(COLUMN)68 Ottawa(COLUMN)pt. cldy(COLUMN)70(COLUMN)54 Regina(COLUMN)clear(COLUMN)77(COLUMN)52 St. Kitts(COLUMN)pt. cldy(COLUMN)87(COLUMN)77 St. Thomas(COLUMN)pt. cldy(COLUMN)90(COLUMN)78 Toronto(COLUMN)clear(COLUMN)70(COLUMN)54 Vancouver(COLUMN)cloudy(COLUMN)68(COLUMN)55 Veracruz(COLUMN)fair(COLUMN)86(COLUMN)75 Winnipeg(COLUMN)cloudy(COLUMN)84(COLUMN)64(END TABLE)