Washington: Today - Partly cloudy, high in mid 60s, low in near 50. The chances of rain is near zero through tonight. Wind will be from the south at less than 10 mph,. Saturday - Partly cloudy, high near 80.

Maryland and Virginia: Today - Partly cloudy, highs in the 60s, lows from the 40s to near 50. Saturday - Partly cloudy, Highs from the upper 60s to near 80.

Lower Potomac and Chesapeake Bay: Today - Partly cloudy with visibility of more than 5 miles. Wind will be from the south at from 8 to 18 knots. Waves in unprotected waters will be from 1 to 3 feet.

Extended Area forecast for Sunday through Tuesday - Fair through the period except for a chance of rain on Tuesday. Highs will be in the low 60s, lows in the 40s. Normal Washington temperatures for the period are a high of 62 and a low of 41.

West Virginia: Today - Partly cloudy, highs from the low 60s to near 70, lows from the upper 20s to the mid 40s. Saturday - Partly cloudy, highs from the upper 60s to near 80, lows from the mid 40s to the low 50s.

The National Weather forecast for today - Showers will spread over the northern half of the Rocky Mountain region and extend across the central and southern Plateau into California. Showers will also dampen the Northern eastern Great Lakes. Other areas will have clear or partly cloudy skies. Temperature will be warmer over the Northeast and mild in the Southeast. It will be warm from the central and southern Plains into the southern Rockies. Cooler temperatures are expected from the northern Plains into the northern and central Rockies and most of the intermountain region. The Pacific Coast will be cool.

Almanac Data for today: Sun rises 5:55 a.m., sets 6:30 p.m.; Moon rises 12:58 a.m. sets 11:20 a.m. Tides: high 12:47 a.m. and 1:16 p.m., low 7:42 a.m. and 8:30 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); Delae; Md., (4 1/2): Colonial Beach (5 3/4); 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 2 p.m. to 3 p.m. period was 29 for the pollutant, photochemical oxidants. Index values quality. When the index exceeds between 25 and 49 indicate fair air 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 forcasts the Potomac River stage at Little Falls should be near 6.5 feet today. Local Temps. Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnight(COLUMN)49(COLUMN)41 1 a.m.(COLUMN)48(COLUMN)44 2 a.m.(COLUMN)46(COLUMN)45 3 a.m.(COLUMN)44(COLUMN)47 4 a.m.(COLUMN)52(COLUMN)55 5 a.m.(COLUMN)38(COLUMN)57 6 a.m.(COLUMN)38(COLUMN)57 7 a.m.(COLUMN)38(COLUMN)57 8 a.m.(COLUMN)40(COLUMN)53 9 a.m.(COLUMN)42(COLUMN)49 10 a.m.(COLUMN)44(COLUMN)45 11 a.m.(COLUMN)46(COLUMN)42 12 noon(COLUMN)48(COLUMN)40 1 p.m.(COLUMN)50(COLUMN)39 2 p.m.(COLUMN)52(COLUMN)38 3 p.m.(COLUMN)54(COLUMN)35 4 p.m.(COLUMN)54(COLUMN)34 5 p.m.(COLUMN)54(COLUMN)32 6 p.m.(COLUMN)52(COLUMN)35 7 p.m.(COLUMN)52(COLUMN)35(END TABLE) Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)48(COLUMN)29 Albuquerque(COLUMN)72(COLUMN)44 Amarillo(COLUMN)72(COLUMN)41 Anchorage(COLUMN)46(COLUMN)29 Ashville(COLUMN)76(COLUMN)41 Atlanta(COLUMN)80(COLUMN)52 Atlantic City(COLUMN)64(COLUMN)28 Austin(COLUMN)74(COLUMN)50 Baltimore(COLUMN)65(COLUMN)35 Billings(COLUMN)76(COLUMN)46 Birmingham(COLUMN)77(COLUMN)42 Bismarck(COLUMN)62(COLUMN)34 Boise(COLUMN)81(COLUMN)54 Boston(COLUMN)59(COLUMN)37 Brownsville(COLUMN)80(COLUMN)60 Buffalo(COLUMN)37(COLUMN)25 Burlington, Vt.(COLUMN)42(COLUMN)31 Casper(COLUMN)69(COLUMN)40 Charleston, S.C.(COLUMN)73(COLUMN)44 Ch'ston, W.Va.(COLUMN)61(COLUMN)31 Charlotte(COLUMN)80(COLUMN)46 Cheyenne(COLUMN)45(COLUMN)30 Chicago(COLUMN)45(COLUMN)30 Cincinnati(COLUMN)57(COLUMN)29 Cleveland(COLUMN)45(COLUMN)24 Columbia, S.C.(COLUMN)83(COLUMN)48 Columbus(COLUMN)52(COLUMN)24 Dal.-Ft. Worth(COLUMN)70(COLUMN)52 Dayton(COLUMN)53(COLUMN)28 Denver(COLUMN)73(COLUMN)43 Des Moines(COLUMN)57(COLUMN)38 Detroit(COLUMN)37(COLUMN)23 Duluth(COLUMN)44(COLUMN)37 El Paso(COLUMN)81(COLUMN)49 Fairbanks(COLUMN)37(COLUMN)16 Fargo(COLUMN)39(COLUMN)36 Flagstaff(COLUMN)65(COLUMN)32 Great Falls(COLUMN)78(COLUMN)51 Hartford(COLUMN)59(COLUMN)32 Helena(COLUMN)77(COLUMN)44 Houston(COLUMN)72(COLUMN)56 Indianapolis(COLUMN)55(COLUMN)32 Jackson, Miss(COLUMN)78(COLUMN)47 Jacksonville(COLUMN)75(COLUMN)48 Juneau(COLUMN)47(COLUMN)27 Kansas City(COLUMN)62(COLUMN)42 Las Vegas(COLUMN)85(COLUMN)56 Little Rock(COLUMN)78(COLUMN)51 Los Angeles(COLUMN)65(COLUMN)59 Lousiville(COLUMN)64(COLUMN)35 Memphis(COLUMN)81(COLUMN)49 Miami Beach(COLUMN)77(COLUMN)62 Midland-Odessa(COLUMN)78(COLUMN)49 Milwaukee(COLUMN)42(COLUMN)27 Mpls.-St. Paul(COLUMN)49(COLUMN)41 Nashville(COLUMN)72(COLUMN)46 New Orleans(COLUMN)78(COLUMN)55 New York(COLUMN)62(COLUMN)35 Norfolk(COLUMN)76(COLUMN)44 North Platte(COLUMN)69(COLUMN)37 Oklahoma City(COLUMN)77(COLUMN)44 Omaha(COLUMN)61(COLUMN)43 Orlando(COLUMN)77(COLUMN)55 Philadelphia(COLUMN)63(COLUMN)34 Phoenix(COLUMN)88(COLUMN)58 Pittsburgh(COLUMN)55(COLUMN)29 Portland, Maine(COLUMN)54(COLUMN)27 Portland, Ore.(COLUMN)58(COLUMN)52 Providence(COLUMN)59(COLUMN)31 Raleigh(COLUMN)81(COLUMN)44 Rapid City(COLUMN)79(COLUMN)42 Reno(COLUMN)73(COLUMN)48 Richmond(COLUMN)76(COLUMN)40 St. Louis(COLUMN)61(COLUMN)40 St. Ptg.-Tampa(COLUMN)79(COLUMN)54 Salt Lake City(COLUMN)74(COLUMN)50 San Antonio(COLUMN)76(COLUMN)56 San Diego(COLUMN)67(COLUMN)63 San Francisco(COLUMN)59(COLUMN)55 San Juan(COLUMN)86(COLUMN)71 St. Ste Marie(COLUMN)33(COLUMN)17 Seattle(COLUMN)59(COLUMN)46 Shreveport(COLUMN)78(COLUMN)51 Sioux Falls(COLUMN)57(COLUMN)41 Spokane(COLUMN)65(COLUMN)50 Syracuse(COLUMN)42(COLUMN)28 Topeka(COLUMN)66(COLUMN)37 Tuscon(COLUMN)84(COLUMN)61 Tulsa(COLUMN)83(COLUMN)50 Washington(COLUMN)67(COLUMN)38 Wichita(COLUMN)79(COLUMN)47(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)52 Armsterdam(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)48 Ankara(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)43 Auckland(COLUMN)cloudy(COLUMN)midnight(COLUMN)61 Berlin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)66 Birmingham(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)50 Brussels(COLUMN)rain(COLUMN)1 p.m.(COLUMN)46 Cairo(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)70 Casablanca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)61 Dublin(COLUMN)rain(COLUMN)1 p.m.(COLUMN)46 Geneva(COLUMN)rain(COLUMN)1 p.m.(COLUMN)54 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)73 Lisbon(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)55 London(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)52 Madrid(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)50 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)61 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)84 Moscow(COLUMN)clear(COLUMN)3 p.m.(COLUMN)52 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)68 Nice(COLUMN)rain(COLUMN)1 p.m.(COLUMN)54 Oslo(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)51 Paris(COLUMN)rain(COLUMN)1 p.m.(COLUMN)46 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)32 Rome(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)63 Saigon(COLUMN)clear(COLUMN)8 p.m.(COLUMN)82 Sofia(COLUMN)clear(COLUMN)2 p.m.(COLUMN)57 Stockholm(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)50 Tel Aviv(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)64 Tokyo(COLUMN)cloudy(COLUMN)9 p.m.(COLUMN)48 Vienna(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)66 Warsaw(COLUMN)clear(COLUMN)1 p.m.(COLUMN)64(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)fair(COLUMN)88(COLUMN)73 Barbados(COLUMN)rain(COLUMN)82(COLUMN)73 Bermuda(COLUMN)cloudy(COLUMN)72(COLUMN)64 Bogota(COLUMN)pt. cldy.(COLUMN)59(COLUMN)44 Calgary(COLUMN)cloudy(COLUMN)43(COLUMN)37 Edmonton(COLUMN)cloudy(COLUMN)43(COLUMN)36 Havana(COLUMN)fair(COLUMN)72(COLUMN)66 Kingston(COLUMN)pt. cldy.(COLUMN)86(COLUMN)75 Montego Bay(COLUMN)pt. cldy.(COLUMN)84(COLUMN)70 Mexico City(COLUMN)pt. cldy.(COLUMN)77(COLUMN)55 Monterrey(COLUMN)cloudy(COLUMN)84(COLUMN)61 Montreal(COLUMN)pt. cldy.(COLUMN)39(COLUMN)23 Nassau(COLUMN)fair(COLUMN)81(COLUMN)66 Ottawa(COLUMN)clear(COLUMN)37(COLUMN)21 Regina(COLUMN)pt. cldy.(COLUMN)64(COLUMN)39 St. Kitts(COLUMN)pt. cldy.(COLUMN)85(COLUMN)75 St. Thomas(COLUMN)pt. cldy.(COLUMN)85(COLUMN)75 Toronto(COLUMN)clear(COLUMN)37(COLUMN)25 Vancouver(COLUMN)rain(COLUMN)55(COLUMN)46 Veracruz(COLUMN)cloudy(COLUMN)79(COLUMN)66 Winnipeg(COLUMN)pt. cldy.(COLUMN)36(COLUMN)30(END TABLE)