Washington: Today - Cloudy, rain possible, high near 40, low in the mid 30s. The chance of precipitation is near 30 percent today and 10 percent tonight. Wind will be from the northeast at near 10 mph. Saturday - Sunny, high in the mid 30s.

Maryland and Virginia: Today - Cloudy, rain possible, high from the 40s to the 50s, lows from the mid 20s to the mid 30s. Saturday - Sunday, highs in the 50s.

Lower Potomac and Chesapeake: Today - Cloudy, rain possible. Visibility will be loss than 3 miles. Wind will be from the north at from 10 to 18 knots. Waves in unprotected waters will be up to 3 feet.

West Virginia: Today - Partly cloudy, highs from the low to mid 50s, lows from the mid 20s to the 30s. Saturday - Partly cloudy, highs from the mid 50s to the low 60s.

Extended Area Forecast for Sunday through Thursday: Partly cloudy through the period, except for a chance of showers on Sunday. Highs will be from the 50s to the mid 60s, lows from the mid 30s to the mid 40s. Normal Washington temperatures for the period are a high of 54 and a low of 34.

The National Weather Forecast for today - Rain will scatter through the Altantic Coast from New Jersey through the Carolinas. Snow flurries will scatter over the upper Great Lakes. Rain will extended from southern California through much of Arizona and across eastern portions of the Great Basin. Temperatures will be mild from the Upper Mississippi Valley across the northern half of the Pacific Coast, through the Rockies and southern half of the Plains. Temperatures elsewhere will be cool or cold.

Almanac Data for today: Sun rises 6:28 a.m., sets 6:10 p.m., Moon rises 7:16 a.m. sets 8:05 p.m. Tides: high 3:18 a.m. and 3:44 p.m., low 9:14 a.m. and 9:27 p.m. High and low tides at the following locations may be obtained by subtracting the hours indicated from the hours above: Annapolis (1 1/2); Bloody Point Lighthouse (4 1/2); Deale, Md., (4 1/2); Colonial Beach (6); Norfolk (1 1/2); Virginia Beach (1); Solomons Island (6 1/2); Point Lookout (7).

The Council of Governments' Air Quality Index for yesterday snowed the high reading in the Washington area during the 2 p.m. to 3 p.m. period was 15 for the pollutant, carbon monoxide. Index values between zero and 24 indicate good air quality. When the index exceeds 100 the air is considered very unhealthy and individuals wit lung, heart and eye ailments are urged to restrict their activity. The forecast for today indicates that the air quality will be good.

The National Weather Service forecasts the Potomac River stage at Little Falls should be near 3.7 feet today. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnight(COLUMN)31(COLUMN)78 1 a.m.(COLUMN)31(COLUMN)75 2 a.m.(COLUMN)31(COLUMN)75 3 a.m.(COLUMN)31(COLUMN)75 4 a.m.(COLUMN)31(COLUMN)75 5 a.m.(COLUMN)32(COLUMN)72 6 a.m.(COLUMN)32(COLUMN)72 7 a.m.(COLUMN)32(COLUMN)72 8 a.m.(COLUMN)32(COLUMN)72 9 a.m.(COLUMN)32(COLUMN)75 10 a.m.(COLUMN)34(COLUMN)72 11 a.m.(COLUMN)35(COLUMN)70 12 noon(COLUMN)35(COLUMN)70 1 p.m.(COLUMN)36(COLUMN)70 2 p.m.(COLUMN)37(COLUMN)67 3 p.m.(COLUMN)37(COLUMN)70 4 p.m.(COLUMN)38(COLUMN)64 5 p.m.(COLUMN)38(COLUMN)73 6 p.m.(COLUMN)37(COLUMN)70 7 p.m.(COLUMN)38(COLUMN)73(END TABLE) Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)34(COLUMN) 6 Albuquerque(COLUMN)69(COLUMN)31 Amarillo(COLUMN)50(COLUMN)23 Anchorage(COLUMN)35(COLUMN)27 Asheville(COLUMN)40(COLUMN)34 Atlanta(COLUMN)51(COLUMN)36 Atlantic City(COLUMN)31(COLUMN)27 Austin(COLUMN)48(COLUMN)34 Baltimore(COLUMN)33(COLUMN)28 Billings(COLUMN)44(COLUMN)35 Birmingham(COLUMN)64(COLUMN)47 Bismarck(COLUMN)39(COLUMN)29 Boise(COLUMN)56(COLUMN)43 Boston(COLUMN)32(COLUMN)25 Brownsville(COLUMN)70(COLUMN)40 Buffalo(COLUMN)31(COLUMN) 7 Burlington(COLUMN)26(COLUMN) 2 Casper(COLUMN)51(COLUMN)37 Charleston, S.C.(COLUMN)64(COLUMN)40 Charlton, W.Va.(COLUMN)46(COLUMN)35 Charlotte(COLUMN)44(COLUMN)33 Cheyenne(COLUMN)56(COLUMN)32 Chicago(COLUMN)30(COLUMN)17 Cincinnati(COLUMN)31(COLUMN)28 Cleveland(COLUMN)32(COLUMN) 8 Columbia, S.C.(COLUMN)51(COLUMN)35 Columbus(COLUMN)32(COLUMN)20 Dal.-Ft. Worth(COLUMN)42(COLUMN)38 Dayton(COLUMN)29(COLUMN)21 Denver(COLUMN)63(COLUMN)31 Des Moines(COLUMN)31(COLUMN) 5 Detroit(COLUMN)33(COLUMN) 3 Duluth(COLUMN)35(COLUMN)24 El Paso(COLUMN)89(COLUMN)52 Fairbanks(COLUMN)19(COLUMN) 6 Fargo(COLUMN)31(COLUMN)24 Flagstaff(COLUMN)59(COLUMN)24 Great Falls(COLUMN)46(COLUMN)34 Hartford(COLUMN)35(COLUMN) 5 Helena(COLUMN)46(COLUMN)36 Honolulu(COLUMN)85(COLUMN)72 Houston(COLUMN)46(COLUMN)38 Indianapolis(COLUMN)29(COLUMN)27 Jackson, Miss.(COLUMN)60(COLUMN)36 Jacksonville(COLUMN)65(COLUMN)55 Juneau(COLUMN)41(COLUMN)36 Kansas City(COLUMN)32(COLUMN)13 Las Vegas(COLUMN)68(COLUMN)49 Little Rock(COLUMN)41(COLUMN)31 Los Angeles(COLUMN)72(COLUMN)55 Louisville(COLUMN)35(COLUMN)33 Memphis(COLUMN)50(COLUMN)34 Miami Beach(COLUMN)80(COLUMN)65 Midland-Odessa(COLUMN)59(COLUMN)31 Milwaukee(COLUMN)29(COLUMN) 9 Mpls.-St. Paul(COLUMN)32(COLUMN)19 Nashville(COLUMN)61(COLUMN)37 New Orleans(COLUMN)61(COLUMN)46 New York(COLUMN)30(COLUMN)29 Norfolk(COLUMN)35(COLUMN)32 North Platte(COLUMN)34(COLUMN)21 Oklahoma City(COLUMN)42(COLUMN)26 Omaha(COLUMN)30(COLUMN)13 Orlando(COLUMN)79(COLUMN)62 Philadelphia(COLUMN)34(COLUMN)25 Phoenix(COLUMN)78(COLUMN)54 Pittsburgh(COLUMN)36(COLUMN)21 Portland, Maine(COLUMN)34(COLUMN) 9 Portland, Ore.(COLUMN)58(COLUMN)41 Providence(COLUMN)33(COLUMN)14 Raleigh(COLUMN)40(COLUMN)31 Rapid City(COLUMN)45(COLUMN)32 Reno(COLUMN)64(COLUMN)42 Richmond(COLUMN)32(COLUMN)28 St. Louis(COLUMN)31(COLUMN)26 St. Prbg.-Tampa(COLUMN)74(COLUMN)61 Salt Lake City(COLUMN)59(COLUMN)45 San Antonio(COLUMN)60(COLUMN)32 San Diego(COLUMN)70(COLUMN)60 San Francisco(COLUMN)59(COLUMN)53 San Juan(COLUMN)79(COLUMN)72 St. Ste. Marie(COLUMN)33(COLUMN)14 Seattle(COLUMN)58(COLUMN)46 Shrevonport(COLUMN)43(COLUMN)35 Sioux Falls(COLUMN)28(COLUMN)21 Spokane(COLUMN)47(COLUMN)32 Syracuse(COLUMN)36(COLUMN) 2 Topeka(COLUMN)33(COLUMN)11 Tucson(COLUMN)32(COLUMN)48 Tulsa(COLUMN)41(COLUMN)24 Washington(COLUMN)35(COLUMN)31 Wichita(COLUMN)39(COLUMN)18(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)45 Amsterdam(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)46 Ankara(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)52 Athens(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)61 Berlin(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)41 Birmingham(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)50 Brussels(COLUMN)pt.cldy.(COLUMN) 1 p.m.(COLUMN)48 Casablanca(COLUMN)clear(COLUMN)noon(COLUMN)63 Copenhagen(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)41 Dublin(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)48 Geneva(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)52 Hong Kong(COLUMN)cloudy(COLUMN) 8 p.m.(COLUMN)68 Lisbon(COLUMN)pt.cldy(COLUMN)noon(COLUMN)52 London(COLUMN)cloudy(COLUMN) 1 P.m.(COLUMN)50 Madrid(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)61 Malta(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)63 Manila(COLUMN)clear(COLUMN) 8 p.m.(COLUMN)82 Moscow(COLUMN)snow(COLUMN) 3 p.m.(COLUMN)34 New Delhi(COLUMN)cldy.(COLUMN) 5 p.m.(COLUMN)81 Nice(COLUMN)clear(COLUMN) 5 p.m.(COLUMN)59 Oslo(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)30 Paris(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN)52 Peking(COLUMN)clear(COLUMN) 8 p.m.(COLUMN)27 Rome(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN)59 Saigon(COLUMN)pt. cldy.(COLUMN) 8 p.m.(COLUMN)82 Sofla(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)48 Stockholm(COLUMN)snow(COLUMN) 1 p.m.(COLUMN)34 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)75 Tel Aviv(COLUMN)cloudy(COLUMN) 2 p.m.(COLUMN)88 Tokyo(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)46 Tunis(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)55 Vienna(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)43 Warsaw(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)39(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)Hight(COLUMN)Low Acapulco(COLUMN)fair(COLUMN)90(COLUMN)68 Barbados(COLUMN)fair(COLUMN)84(COLUMN)73 Bermuda(COLUMN)pt. cldy.(COLUMN)65(COLUMN)61 Bogota(COLUMN)cloudy(COLUMN)70(COLUMN)53 Calgary(COLUMN)clear(COLUMN)45(COLUMN)23 Edmonton(COLUMN)clear(COLUMN)40(COLUMN)25 Havana(COLUMN)cloudy(COLUMN)84(COLUMN)73 Kingston(COLUMN)fair(COLUMN)88(COLUMN)72 Montego Bay(COLUMN)cloudy(COLUMN)84(COLUMN)70 Mexico City(COLUMN)fair(COLUMN)72(COLUMN)41 Monterrey(COLUMN)clear(COLUMN)72(COLUMN)41 Montreal(COLUMN)clear(COLUMN)25(COLUMN)10 Nassau(COLUMN)cloudy(COLUMN)79(COLUMN)70 Ottawa(COLUMN)clear(COLUMN)27(COLUMN) 9 Regina(COLUMN)clear(COLUMN)39(COLUMN)27 St. Kitts(COLUMN)cloudy(COLUMN)83(COLUMN)72 St. Thomas(COLUMN)pt. cldy.(COLUMN)82(COLUMN)74 Toronot(COLUMN)pt. cldy.(COLUMN)30(COLUMN) 5 Vancouver(COLUMN)clear(COLUMN)55(COLUMN)36 Veracruz(COLUMN)pt. cldy.(COLUMN)77(COLUMN)64 Winnipeg(COLUMN)cloudy(COLUMN)32(COLUMN)27(END TABLE)