Washington: Today - Partial clearing, breezy and cool, high near 60, low near 40. The chance of rain is 10 percent today, diminishing to near zero tonight. Winds will be from the north at 10 to 20 mph. Friday - Sunday, high near 70.

Maryland and Virginia: Today - Partial clearing, breezy and cool, highs in the 50s to near 60, lows in the 30s and 40s.Friday - Sunny, high in the 60s.

Lower Potomac and Chesapeake Bay - Clearing with visibility improving to 5 miles or better by afternoon. Winds will be northerly at 10 to 20 knots. Waves will average near 2 feet.

Extended Area Forecast for Saturday through Monday - Fair Saturday with a chance of rain late Sunday and Monday. Highs will average in the 60s to near 70, lows in the 40s to mid 50s. Normal Washington temperatures for the period are a high of 72 and a low of 51.

West Virginia: Today - Sunny, high in athe 60s, low in the 30s except in the mountains where it will drop into the 20s. Friday - Sunny, high in the 60s.

Almanac Data for today. The sun rises 5:16 a.m., sets 6:56 p.m!; moon rises 11:48 p.m., sets 9:13 a.m. Tides: High 11:06 a.m., and 6:10 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 1/2), Norfolk (1), Virginia Beach (3/4), Solomons Island (6 1/4), Point Lookout (7).

Pollen Count: 55 trees incomplete due to rain (a reading of more than 7 is considered to be undesirable).

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 3 p.m. period was 28 for the pollutant, photochemical oxidants. Index values between 25 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 rise to near 4.2 feet today. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnight(COLUMN)50(COLUMN)74 1 a.m.(COLUMN)49(COLUMN)80 2 a.m.(COLUMN)49(COLUMN)80 3 a.m.(COLUMN)49(COLUMN)80 4 a.m.(COLUMN)49(COLUMN)83 5 a.m.(COLUMN)49(COLUMN)83 6 a.m.(COLUMN)49(COLUMN)83 7 a.m.(COLUMN)50(COLUMN)74 8 a.m.(COLUMN)50(COLUMN)74 9 a.m.(COLUMN)50(COLUMN)74 10 a.m.(COLUMN)51(COLUMN)71 11 a.m.(COLUMN)52(COLUMN)66 12 noon(COLUMN)54(COLUMN)57 1 p.m.(COLUMN)53(COLUMN)51 2 p.m.(COLUMN)54(COLUMN)55 3 p.m.(COLUMN)54(COLUMN)53 4 p.m.(COLUMN)54(COLUMN)49 5 p.m.(COLUMN)54(COLUMN)51 6 p.m(COLUMN)53(COLUMN)30(END TABLE) Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)59(COLUMN)38 Albuquerque(COLUMN)79(COLUMN)52 Amarillo(COLUMN)68(COLUMN)45 Anchorage(COLUMN)50(COLUMN)39 Ashevill(COLUMN)58(COLUMN)44 Atlanta(COLUMN)68(COLUMN)44 Atlantic City(COLUMN)53(COLUMN)47 Austin(COLUMN)80(COLUMN)54 Baltimore(COLUMN)62(COLUMN)50 Billings(COLUMN)71(COLUMN)51 Birmingham(COLUMN)65(COLUMN)48 Bismarck(COLUMN)58(COLUMN)38 Boise(COLUMN)70(COLUMN)50 Boston(COLUMN)53(COLUMN)48 Brownsville(COLUMN)85(COLUMN)62 Buffalo(COLUMN)58(COLUMN)37 Burlington, Vt.(COLUMN)52(COLUMN)27 Casper(COLUMN)72(COLUMN)35 Charleston, S.C.(COLUMN)80(COLUMN)54 Charleston, W.V.(COLUMN)66(COLUMN)45 Charlotte(COLUMN)63(COLUMN)47 Cheyenne(COLUMN)61(COLUMN)33 Chicago(COLUMN)57(COLUMN)39 Cincinnatt(COLUMN)41(COLUMN)46 Cleveland 57(COLUMN)41 Columbia, S.C.(COLUMN)63(COLUMN)50 Columbus(COLUMN)51(COLUMN)46 Del.-Ft. Worth(COLUMN)72(COLUMN)44 Dayton(COLUMN)51(COLUMN)42 Denver(COLUMN)66(COLUMN)42 Des Moines(COLUMN)63(COLUMN)38 Detroit(COLUMN)63(COLUMN)39 Duluth(COLUMN)54(COLUMN)33 El Paso(COLUMN)84(COLUMN)53 Fairbanks(COLUMN)57(COLUMN)40 Fargo(COLUMN)62(COLUMN)44 Flagstaff(COLUMN)66(COLUMN)46 Great Falls(COLUMN)65(COLUMN)50 Hartford(COLUMN)67(COLUMN)38 Helena(COLUMN)70(COLUMN)54 Honolulu(COLUMN)86(COLUMN)72 Houston(COLUMN)80(COLUMN)54 Indianapolis(COLUMN)56(COLUMN)46 Jackson(COLUMN)70(COLUMN)48 Jacksonville(COLUMN)84(COLUMN)52 Juneau(COLUMN)49(COLUMN)43 Las Vegas(COLUMN)75(COLUMN)55 Little Rock(COLUMN)64(COLUMN)45 Lost Angeles(COLUMN)65(COLUMN)55 Louisville(COLUMN)58(COLUMN)49 Memphis(COLUMN)63(COLUMN)50 Midland(COLUMN)79(COLUMN)52 Milwaukee(COLUMN)50(COLUMN)37 Mpls.-St. Paul(COLUMN)66(COLUMN)40 Nashville(COLUMN)61(COLUMN)47 New Orleana(COLUMN)84(COLUMN)59 New York(COLUMN)67(COLUMN)45 Norfolk(COLUMN)60(COLUMN)49 North Platte(COLUMN)61(COLUMN)42 Oklahoma City(COLUMN)67(COLUMN)45 Omaha(COLUMN)64(COLUMN)45 Orlando(COLUMN)89(COLUMN)65 Philadelphia(COLUMN)66(COLUMN)44 Phoenix(COLUMN)94(COLUMN)68 Pittsburgh(COLUMN)59(COLUMN)49 Portland, Mo.(COLUMN)52(COLUMN)32 Portland, Or.(COLUMN)63(COLUMN)53 Providence(COLUMN)57(COLUMN)41 Raleigh(COLUMN)57(COLUMN)48 Rapid City(COLUMN)68(COLUMN)44 Reno(COLUMN)56(COLUMN)37 Richmond(COLUMN)56(COLUMN)47 St. Louis(COLUMN)49(COLUMN)42 St. Prbg.-Tampa(COLUMN)86(COLUMN)63 Salt Lake City(COLUMN)70(COLUMN)46 San Antonio(COLUMN)79(COLUMN)53 San Diego(COLUMN)69(COLUMN)61 San Francisco(COLUMN)64(COLUMN)53 San Juan(COLUMN)91(COLUMN)74 St. Ste. Marle(COLUMN)64(COLUMN)33 Seattle(COLUMN)64(COLUMN)51 Shreveport(COLUMN)75(COLUMN)45 Sioux Falls(COLUMN)63(COLUMN)37 Spokane(COLUMN)70(COLUMN)55 Syrause(COLUMN)63(COLUMN)34 Topeka(COLUMN)64(COLUMN)33 Tucson(COLUMN)91(COLUMN)61 Tuisa(COLUMN)67(COLUMN)42 Washington(COLUMN)64(COLUMN)41 Wichita(COLUMN)63(COLUMN)42(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)43 Amsterdam(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)54 Ankara(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)61 Athens(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)66 Auckland(COLUMN)clear(COLUMN)midnight(COLUMN)57 Berlin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)43 Birmingham(COLUMN)rain(COLUMN)1 p.m.(COLUMN)45 Brussels(COLUMN)rain(COLUMN)1 p.m.(COLUMN)63 Cairo(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)79 Casablanca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)66 Dublin(COLUMN)pt. cldy.$1 p.m.(COLUMN)48 Geneva(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)55 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)73 Lisbon(COLUMN)rain(COLUMN)noon(COLUMN)61 London(COLUMN)rain(COLUMN)1 p.m.(COLUMN)45 Madrid(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)55 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)66 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)82 Moscow(COLUMN)rain(COLUMN)3 p.m.(COLUMN)50 New Dethl(COLUMN)clear(COLUMN)5 p.m.(COLUMN)100 Nice(COLUMN)rain(COLUMN)1 p.m.(COLUMN)55 Oslo(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Paris(COLUMN)rain(COLUMN)1 p.m.(COLUMN)50 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)70 Rome(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)63 Sofia(COLUMN)rain(COLUMN)2 p.m.(COLUMN)48 Stockholm(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)34 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)52 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)61 Tunis(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)70 Vienna(COLUMN)clear(COLUMN)1 p.m.(COLUMN)63 Warsaw(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)39(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acaoulco(COLUMN)clear(COLUMN)88(COLUMN)73 Barbados(COLUMN)fair(COLUMN)84(COLUMN)79 Calgary(COLUMN)pt. cldy.(COLUMN)63(COLUMN)39 Culiacan(COLUMN)fair(COLUMN)95(COLUMN)59 Edmonton(COLUMN)clear(COLUMN)66(COLUMN)39 Havana(COLUMN)cloudy(COLUMN)84(COLUMN)73 Montreal(COLUMN)clear(COLUMN)57(COLUMN)32 Ottawa(COLUMN)clear(COLUMN)59(COLUMN)37 Regina(COLUMN)clear(COLUMN)64(COLUMN)39 St. Kitts(COLUMN)fair(COLUMN)87(COLUMN)75 Toronto(COLUMN)clear(COLUMN)59(COLUMN)34 Vanqouver(COLUMN)cloudy(COLUMN)59(COLUMN)52 Winnipeg(COLUMN)clear(COLUMN)63(COLUMN)34(END TABLE)