Washington: Today -- Sunny, high by mid 40s, low near 30. The chance of precipitation is near zero through tonight.Wind will be from the northwest at from 10 to 15 mph. Saturday -- Fair, high in the upper 40s.

Maryland and Virginia: Today --Sunny, highs from the mid 30s to the 40s, lows from the 20s to the low 30s. Saturday -- Fair, highs from the 40s to the 50s.

Lower Potomac and Chesapeake Bay: Today -- Fair with visibility of more than 5 miles. Wind will be from the northwest at up to 12 knots today, shifting to from the southwest by Saturday morning Waves in ice-free waters will be from 2 to 3 feet.

Extended Area Forecast for Sunday through Tuesday: There will be some snow flurries in the mountains on Sunday, but otherwise it will be fair through the period. Highs will be in the 30s, lows from the teens to the 20s. Temperatures will be colder in the mountains. Normal Washington temperatures for the period are a high of 48 and a low of 30.

West Virginia: Today -- Partly cloudy, highs in the 30s, lows from the teens to the mid 20s. There will be a chance of snow flurries in the mountains. Saturday -- increasingly cloudy, chance of snow, highs from the mid 30s to the low 40s.

The National Weather Forecast for today -- Light rain and drizzle northern Rockies through the northwest, with snow in the northern will continue over the Pacific NorthRockies. Snow will expand from the ern Plains and Great Lakes into New England. Mostly cloudy skies are forecast through the Ohio and Tennessee Valley. East of the Mississippi, temperatures will continue cold. Mild to cool conditions will dominate west of the Mississippi.

Almanac Data for Today: Sunrises 6:48 a.m. sets 5:55 p.m. Moon rises 7:48 p.m., sets 7:29 a.m. Tides: high 8:50 a.m. and 10:12 p.m., low 3:25 a.m. and 3:42 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 showed the high reading in the Washington area during the 2 p.m. to 3 3 p.m. period was 36 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 long, heart and eye allments are larged 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 3.5 feet today. Local Temp., Humidity (TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid.(COLUMN)25(COLUMN)42 1 a.m.(COLUMN)25(COLUMN)40 2 a.m.(COLUMN)24(COLUMN)44 3 a.m.(COLUMN)24(COLUMN)44 4 a.m.(COLUMN)24(COLUMN)42 5 a.m.(COLUMN)23(COLUMN)44 6 a.m.(COLUMN)23(COLUMN)44 7 a.m.(COLUMN)23(COLUMN)44 8 a.m.(COLUMN)24(COLUMN)44 9 a.m.(COLUMN)26(COLUMN)40 10 a.m.(COLUMN)29(COLUMN)37 11 a.m.(COLUMN)32(COLUMN)34 12 noon(COLUMN)35(COLUMN)29 1 p.m.(COLUMN)37(COLUMN)27 2 p.m.(COLUMN)39(COLUMN)24 3 p.m.(COLUMN)39(COLUMN)23 4 p.m.(COLUMN)40(COLUMN)24 5 p.m.(COLUMN)40(COLUMN)24 6 p.m.(COLUMN)36(COLUMN)29 7 p.m.(COLUMN)33(COLUMN)35(END TABLE) Temperatures ending 7 a.m. (EST) yesterday: (TABLE) City(COLUMN)L.(COLUMN)H. Albany(COLUMN)23(COLUMN)19 Albuquerque(COLUMN)63(COLUMN)26 Amarillo(COLUMN)50(COLUMN)28 Anchorage(COLUMN)45(COLUMN)35 Asheville(COLUMN)28(COLUMN)12 Atlanta(COLUMN)30(COLUMN)25 Atlantic City(COLUMN)29(COLUMN)22 Austin(COLUMN)67(COLUMN)38 Baltimore(COLUMN)31(COLUMN)17 Billings(COLUMN)40(COLUMN)30 Birmingham(COLUMN)41(COLUMN)25 Bismarck(COLUMN)38(COLUMN)12 Boise(COLUMN)43(COLUMN)35 Boston(COLUMN)32(COLUMN)24 Brownsville(COLUMN)66(COLUMN)48 Buffalo(COLUMN)20(COLUMN)8 Burlington(COLUMN)18(COLUMN)1 Casper(COLUMN)41(COLUMN)30 Charleston, SC(COLUMN)41(COLUMN)30 Charlstn, W.Va(COLUMN)23(COLUMN)6 Charlette(COLUMN)34(COLUMN)19 Chevenne(COLUMN)41(COLUMN)28 Chicago(COLUMN)23(COLUMN)18 Cincinnati(COLUMN)25(COLUMN)16 Cleveland(COLUMN)22(COLUMN)3 Columbia, S.C.(COLUMN)40(COLUMN)19 Columbus(COLUMN)19(COLUMN)4 Dal. Ft. Worth(COLUMN)66(COLUMN)35 Dayton(COLUMN)22(COLUMN)8 Denver(COLUMN)52(COLUMN)27 Des Moines(COLUMN)27(COLUMN)2 Detroit(COLUMN)25(COLUMN)2 Duluth(COLUMN)25(COLUMN)21 El Paso(COLUMN)63(COLUMN)33 Fairbanks(COLUMN)41(COLUMN)10 Fargo(COLUMN)27(COLUMN)5 Flagstaff(COLUMN)49(COLUMN)13 Great Falls(COLUMN)41(COLUMN)35 Hartford(COLUMN)25(COLUMN)22 Helena(COLUMN)42(COLUMN)28 Honolulu(COLUMN)83(COLUMN)66 Houston(COLUMN)61(COLUMN)48 Indianapolis(COLUMN)26(COLUMN)19 Jackson, Miss.(COLUMN)50(COLUMN)38 Jacksonville(COLUMN)47(COLUMN)25 Juneau(COLUMN)40(COLUMN)32 Kansas City(COLUMN)39(COLUMN)33 Las Vegas(COLUMN)70(COLUMN)43 Little Rock(COLUMN)50(COLUMN)39 Los Angeles(COLUMN)83(COLUMN)56 Louisville(COLUMN)29(COLUMN)23 Memphis(COLUMN)42(COLUMN)39 Miami Beach(COLUMN)57(COLUMN)39 Midland-Odessa(COLUMN)68(COLUMN)30 Milwaukee(COLUMN)24(COLUMN)12 Mpls. St. Paul(COLUMN)21(COLUMN)16 Nashville(COLUMN)32(COLUMN)27 New Orleans(COLUMN)49(COLUMN)37 New York(COLUMN)28(COLUMN)24 Norfolk(COLUMN)36(COLUMN)22 North Platte(COLUMN)39(COLUMN)20 Oklahoma City(COLUMN)51(COLUMN)32 Omaha(COLUMN)38(COLUMN)26 Orlando(COLUMN)53(COLUMN)31 Philadelphia(COLUMN)29(COLUMN)17 Phoenix(COLUMN)78(COLUMN)50 Pittsburgh(COLUMN)23(COLUMN)6 Portland, Maine(COLUMN)32(COLUMN)19 Portland, Ore.(COLUMN)56(COLUMN)43 Providence(COLUMN)30(COLUMN)16 Raleigh(COLUMN)34(COLUMN)7 Rapid City(COLUMN)41(COLUMN)22 Reno(COLUMN)61(COLUMN)28 Richmond(COLUMN)32(COLUMN)17 St. Louis(COLUMN)28(COLUMN)24 St. Pbg. Tampa(COLUMN)47(COLUMN)31 Salt Lake City(COLUMN)52(COLUMN)31 San Antonio(COLUMN)65(COLUMN)33 San Diego(COLUMN)77(COLUMN)53 San Francisco(COLUMN)70(COLUMN)51 San Juan(COLUMN)87(COLUMN)72 St. Ste. Marie(COLUMN)26(COLUMN)8 Seattle(COLUMN)50(COLUMN)46 Shreveport(COLUMN)60(COLUMN)34 Sioux Falls(COLUMN)35(COLUMN)24 Sookane(COLUMN)40(COLUMN)35 Syracuse(COLUMN)25(COLUMN)19 Topeka(COLUMN)43(COLUMN)32 Tucson(COLUMN)74(COLUMN)46 Tulsa(COLUMN)53(COLUMN)32 Washington(COLUMN)34(COLUMN)22 Wichita(COLUMN)44(COLUMN)29(END TABLE) Temperatures Abroad Yesterday (TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp Aberdeen(COLUMN)Rain(COLUMN)1 p.m.(COLUMN)41 Amsterdam(COLUMN)rain(COLUMN)1 p.m.(COLUMN)43 Ankara(COLUMN)Clear(COLUMN)3 p.m.(COLUMN)39 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)55 Auckland(COLUMN)clear(COLUMN)midnt.(COLUMN)68 Berlin(COLUMN)fog(COLUMN)1 p.m.(COLUMN)37 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)45 Brussels(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)52 Casabianca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)66 Capenhagen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)30 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)46 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)45 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)63 Lisbon(COLUMN)cloudy(COLUMN)noon(COLUMN)45 London(COLUMN)clear(COLUMN)1 p.m.(COLUMN)52 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)57 Marta(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)63 Manila(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)79 Moscow(COLUMN)clear(COLUMN)3 p.m.(COLUMN)9 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)77 Nice(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)57 Oslo(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)16 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)54 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)36 Rome(COLUMN)py. cldy.(COLUMN)1 p.m.(COLUMN)61 Saigon(COLUMN)pt. cldy(COLUMN)8 p.m.(COLUMN)84 Sofia(COLUMN)clear(COLUMN)2 p.m.(COLUMN)43 Stockholm(COLUMN)clear(COLUMN)1 p.m.(COLUMN)23 Tel Aviv(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)57 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)36 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)68 Vienna(COLUMN)haze(COLUMN)1 p.m.(COLUMN)30 Warsaw(COLUMN)Cloudy(COLUMN)1 p.m.(COLUMN)27(END TABLE) Temperatures (Western Hemisphere) (TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)cloudy(COLUMN)87(COLUMN)75 Bermuda(COLUMN)fair(COLUMN)65(COLUMN)51 Calgary(COLUMN)cloudy(COLUMN)46(COLUMN)32 Cutiacan(COLUMN)pt. cldy(COLUMN)86(COLUMN)59 Edmonton(COLUMN)cloudy(COLUMN)41(COLUMN)30 Havana(COLUMN)fair(COLUMN)68(COLUMN)57 Kingston(COLUMN)pt. cldy(COLUMN)82(COLUMN)70 Mexico City(COLUMN)rain(COLUMN)59(COLUMN)48 Monterrey(COLUMN)fair(COLUMN)61(COLUMN)44 Montreal(COLUMN)pt. cldy(COLUMN)23(COLUMN)16 Nassau(COLUMN)pt. cldy(COLUMN)66(COLUMN)52 Ottawa(COLUMN)pt. cldy(COLUMN)23(COLUMN)12 Regina(COLUMN)cloudy(COLUMN)34(COLUMN)14 St. Kitts(COLUMN)clear(COLUMN)87(COLUMN)71 St. Thomas(COLUMN)fair(COLUMN)84(COLUMN)72 Toronto(COLUMN)pt.cldy(COLUMN)23(COLUMN)7 Vancouver(COLUMN)cloudy(COLUMN)55(COLUMN)43 Veracruz(COLUMN)cloudy(COLUMN)70(COLUMN)59 Winnipeg(COLUMN)pt. cldy(COLUMN)30(COLUMN)66(END TABLE)