Washington: Today - Partly Cloudy, high near 80, low near 60. The chance of rain is near zero through tonight. Friday - Partly cloudy, high near 80.

Maryland and Virginia: Today - Partly cloudy, high from the low 70s to near 80, low in the 50s. Friday - Partly cloudy high, high from the low 70s to near 80.

Lower Potomac and Chesapeaker Bay: Today - Partly cloudy, visibility of more than 5 miles. Wind will be from the north at less than 12 knots, shifting to variable tonight. Waves in unpronected waters will be less than 2 feet.

Extended Area Forecast for Saturday through Monday: Fair through the period. Chance of showers on Sunday. Highs will be from the 70s to the 80s, low from the 50s to the 60s. Normal Washington temperatures for the period are a high of 77 and a low of 58.

West Virginia: Today - Sunny, highs from the upper 80s to the mid 70s, lows from the mid 40s to the mid 50s. Friday - Sunny, highs in the 70s.

THe National Weather Forecast for today - Showers and thunderstorms will scattered over the northern Mississippi Valley and Great Lakes, as well as over most of FLorida. A few showers will continue in the Northern Rockies. Elsewhere, skies will be mostly sunny. It will be cool across the northern third of the nation and over the central Rockies. Mild temperatures will prevail in other sections, except for warm readings across the Gulf Coast, Texas and the desert sothwest.

Almanac Data for today - Sundries 6:55 a.m. sets 7:06 p.m.; Moon rises 4:00 p.m. sets 1.54 a.m. Tides: High 4:19 p.m. and 4:48 a.m., low 11:12 a.m. and 11:33 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. [WORD ILLEGIBLE]; Colonial Beach (6); Norfork (1 1/2); Virginia Beach (1); Solomons Island ( 6 1/2); Point Lookout (7).

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 2 p.m. to 3 p.m. period was 32 for the pollutant, Photochemcial oxidants. Index values between 24 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 forecast for today indicates that the air quality will improve.

The National Weather Service forecasts the Potomac River stage at Little Falls should be near 2.7 feet today. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnight(COLUMN)74(COLUMN)66 1 a.m.(COLUMN)73(COLUMN)[WORD ILLEGIBLE] 2 a.m.(COLUMN)71(COLUMN)71 3 a.m.(COLUMN)70(COLUMN)73 4 a.m.(COLUMN)69(COLUMN)73 5 a.m.(COLUMN)68(COLUMN)76 6 a.m.(COLUMN)67(COLUMN)81 7 a.m.(COLUMN)67(COLUMN)76 8 a.m.(COLUMN)67(COLUMN)78 9 a.m.(COLUMN)68(COLUMN)76 10 a.m.(COLUMN)74(COLUMN)62 11 a.m.(COLUMN)74(COLUMN)62 12 noon(COLUMN)76(COLUMN)58 1 p.m.(COLUMN)75(COLUMN)54 2 p.m.(COLUMN)77(COLUMN)50 3 p.m.(COLUMN)77(COLUMN)49 4 p.m.(COLUMN)76(COLUMN)52 5 p.m.(COLUMN)76(COLUMN)52 6 p.m.(COLUMN)75(COLUMN)50 7 p.m.(COLUMN)74(COLUMN)54(END TABLE) Temperatures ending 8 a.m. (EDT) Yesterday(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)62(COLUMN)48 Alouquerque(COLUMN)86(COLUMN)58 Ameritto(COLUMN)97(COLUMN)65 Anchorage(COLUMN)57(COLUMN)46 Asheville(COLUMN)80(COLUMN)59 Atlanta(COLUMN)83(COLUMN)62 Atlantic City(COLUMN)83(COLUMN)59 Austin(COLUMN)91(COLUMN)70 Baltimore(COLUMN)87(COLUMN)64 Bilings(COLUMN)74(COLUMN)50 Birmingham(COLUMN)80(COLUMN)60 Bismarck(COLUMN)67(COLUMN)50 Boise(COLUMN)59(COLUMN)45 Boston(COLUMN)66(COLUMN)52 Brownsville(COLUMN)93(COLUMN)72 Buffalo(COLUMN)71(COLUMN)54 Burtington(COLUMN)55(COLUMN)47 Casper(COLUMN)78(COLUMN)43 Charleston, SC(COLUMN)91(COLUMN)76 Chileston, W Va.(COLUMN)72(COLUMN)56 Charlotte(COLUMN)86(COLUMN)64 Chevenne(COLUMN)79(COLUMN)47 Chicago(COLUMN)62(COLUMN)53 Cincinnati(COLUMN)67(COLUMN)51 Cleveland(COLUMN)66(COLUMN)53 Columbia, SC(COLUMN)90(COLUMN)63 Columbus(COLUMN)66(COLUMN)50 Dal.-Ft. Worth(COLUMN)92(COLUMN)63 Dayton(COLUMN)64(COLUMN)50 Denver(COLUMN)87(COLUMN)50 Des Monies(COLUMN)71(COLUMN)61 Detroit(COLUMN)65(COLUMN)53 Duluth(COLUMN)54(COLUMN)36 El Paso(COLUMN)94(COLUMN)71 Fairbanks(COLUMN)45(COLUMN)43 Fargo(COLUMN)61(COLUMN)52 Flagstaff(COLUMN)70(COLUMN)31 Great Falls(COLUMN)69(COLUMN)47 Hartford(COLUMN)68(COLUMN)47 Helena(COLUMN)66(COLUMN)43 Honolulu(COLUMN)89(COLUMN)77 Houston(COLUMN)88(COLUMN)73 Indianapolis(COLUMN)68(COLUMN)45 Jackson, Miss.(COLUMN)86(COLUMN)61 Jacksonville(COLUMN)90(COLUMN)69 Juneau(COLUMN)62(COLUMN)50 Kansas City(COLUMN)72(COLUMN)62 Las Vegas(COLUMN)85(COLUMN)59 Little Rock(COLUMN)81(COLUMN)59 Los Angeles(COLUMN)78(COLUMN)61 Louisville(COLUMN)72(COLUMN)57 Memphis(COLUMN)82(COLUMN)60 Miami Beach(COLUMN)87(COLUMN)80 Midland Odessa(COLUMN)99(COLUMN)74 Milwaukee(COLUMN)58(COLUMN)53 Mpls.-St. Paul(COLUMN)58(COLUMN)46 Nashville(COLUMN)77(COLUMN)67 New Orleans(COLUMN)86(COLUMN)70 New York(COLUMN)71(COLUMN)52 Norfolk(COLUMN)88(COLUMN)69 North Platte(COLUMN)81(COLUMN)56 Oklahoma City(COLUMN)87(COLUMN)69 Omaha(COLUMN)68(COLUMN)62 Orlando(COLUMN)92(COLUMN)95 Philadelphia(COLUMN)82(COLUMN)57 Phoenix(COLUMN)99(COLUMN)70 Pittsburgh(COLUMN)69(COLUMN)64 Portland, Me.(COLUMN)61(COLUMN)41 Portland, Ore.(COLUMN)68(COLUMN)53 Providence(COLUMN)69(COLUMN)52 Raleigh(COLUMN)85(COLUMN)63 Rapid City(COLUMN)86(COLUMN)57 Reno(COLUMN)69(COLUMN)39 Richmond(COLUMN)88(COLUMN)63 St. Louis(COLUMN)74(COLUMN)56 St. Orbg.-Tmpa(COLUMN)88(COLUMN)75 Salt Lake City(COLUMN)71(COLUMN)44 San Antonio(COLUMN)91(COLUMN)71 San Diego(COLUMN)75(COLUMN)63 San Francisco(COLUMN)68(COLUMN)58 St Ste Marie(COLUMN)52(COLUMN)47 Seattle(COLUMN)62(COLUMN)51 Shreveport(COLUMN)86(COLUMN)59 Sioux Falls(COLUMN)73(COLUMN)55 Spokane(COLUMN)60(COLUMN)40 Syracuse(COLUMN)68(COLUMN)54 Topeka(COLUMN)73(COLUMN)64 Tucson(COLUMN)94(COLUMN)66 Tulsa(COLUMN)82(COLUMN)66 Washington(COLUMN)89(COLUMN)67 Wichita(COLUMN)82(COLUMN)68(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)50 Amsterdam(COLUMN)clody(COLUMN) 1 p.m.(COLUMN)57 Ankara(COLUMN)clear(COLUMN) 3 p.m.(COLUMN)82 Athens(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)82 Auckland(COLUMN)pt. cldy(COLUMN)midnight(COLUMN)48 Berlin(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)55 Birmingham(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)50 Brussels(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)54 Cairo(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)91 Casaplanca(COLUMN)clear(COLUMN)noon(COLUMN)73 Copenhagen(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)61 Dublin(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)54 Geneva(COLUMN)pt. cldy(COLUMN) 1 p.m.(COLUMN)55 Hong Kong(COLUMN)cloudy(COLUMN) 8 p.m.(COLUMN)79 Lisbon(COLUMN)pt. cldy(COLUMN)noon(COLUMN)72 London(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)55 Madrid(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)66 Maita(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)81 Manila(COLUMN)cloudy(COLUMN) 8 p.m.(COLUMN)82 Moscow(COLUMN) pt. cldy(COLUMN) 3 p.m.(COLUMN)54 New Delhi(COLUMN)clear(COLUMN) 5 p.m.(COLUMN)91 Nice(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)66 Oslo(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)66 Paris(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)57 Peking(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)59 Rome(COLUMN)pt. cldy(COLUMN) 1 p.m.(COLUMN)66 Saigon(COLUMN)rain(COLUMN) 8 p.m.(COLUMN)75 Sofla(COLUMN)pt. cldy(COLUMN) 2 p.m.(COLUMN)81 Stockholm(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)61 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)63 Tel Aviv(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)88 Tokyo(COLUMN)clear(COLUMN) 9 p.m.(COLUMN)79 Tunis(COLUMN)pt. cldy(COLUMN) 1 p.m.(COLUMN)81 Vienna(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)50 Warsaw(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)50(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapuclo(COLUMN)pt. cldy(COLUMN)88(COLUMN)77 Baroados(COLUMN)pt. cldy(COLUMN)87(COLUMN)77 Bermuda(COLUMN)pt. cldy(COLUMN)87(COLUMN)79 Bogota(COLUMN)pt. cldy(COLUMN)67(COLUMN)47 Calgary(COLUMN)pt. cldy(COLUMN)66(COLUMN)39 Culiacan(COLUMN)pt. cldy(COLUMN)95(COLUMN)80 Eorronton(COLUMN)cloudy(COLUMN)86(COLUMN)43 Havana(COLUMN)pt. cldy(COLUMN)88(COLUMN)74 Kingston(COLUMN)fair(COLUMN)89(COLUMN)79 Montego Bay(COLUMN)pt. cldy(COLUMN)67(COLUMN)75 Mexico City(COLUMN)pt. cldy(COLUMN)75(COLUMN)61 Monterrey(COLUMN)pt. cldy(COLUMN)94(COLUMN)73 Montreal(COLUMN)cloudy(COLUMN)52(COLUMN)45 Nassau(COLUMN)pt. cldy(COLUMN)90(COLUMN)75 Ottawa(COLUMN)rain(COLUMN)52(COLUMN)43 Regina(COLUMN)clear(COLUMN)57(COLUMN)43 St. Kitts(COLUMN)pt. cldy(COLUMN)86(COLUMN)74 St. Thomas(COLUMN)pt. cldy(COLUMN)89(COLUMN)72 Toronto(COLUMN)rain(COLUMN)61(COLUMN)50 Varcouver(COLUMN)clear(COLUMN)61(COLUMN)46 Veracruz(COLUMN)pt. cldy(COLUMN)86(COLUMN)72 winnipea(COLUMN)cloudy(COLUMN)57(COLUMN)50(END TABLE)