Washington: Today -- Snow, maybe mixed with sleet or freezing rain, with total accumulation of 4 inches or more, high 30 to 35, low 20 to 25. Chance of precipitation 90 percent today diminishing to 10 percent tonight. Winds will be out of the northeast at 10 to 15 mph. Thursday -- Variable cloudiness, high in the mid 30s.

Maryland and Virginia: Today -- Snow, possibly mixed with sleet or freezing rain, with total accumulations of 6 inches or more in the west, 4 inches or more in the east, highs from the 20s to the mid 30s, lows in the teens and 20s.

West Virginia: Today -- Snow, possibly mixed with sleet or freezing rain, highs from the mid 20s to the mid 30s, lows in the teens and 20s. Thursday -- Partly cloudy with a chance of flurries, high in the 20s.

Extended Area Forecast for Friday through Sunday -- Chance of precipitation in the mountains Friday, otherwise fair and quite cold. Highs will average in the 20s and 30s, lows mostly in the teens. Normal Washington temperatures are a high of 45 and a low of 28.

Lower Potomac and Chesapeake Bay -- Snow, possibly mixed with sleet or freezing rain. Visibility will be less than 1 mile in precipitation. Winds will be northwesterly at 15 to 25 knots. Waves will average 1 to 3 feet.

The Nation Yesterday: A warm front across the northern Gulf of Mexico spread rain, snow and ice over the Southeast. Heavy rain continued from Louisiana to Georgia. From northern Texas and Oklahoma to northern Georgia and he Carolinas ice and snow were a problem. Snow continued over horthern Texas and Oklahoma and spread into southern Missouri and Tennessee. Freezing rain and sleet hit Northern Georgia and the Carolinas. Damp weather lingered over the Pacific Northwest. The rain turned to heavy snow over the Cascades and the northern Rockies. Snow continued over the Great Lakes region. New England was cold but partly cloudy. The Southere in the 60s. The northern were in the 60s. The northtrn Plains were cold with the Dakotas well below zero. Warmer winds in Montana kept a few places above freezing.

The National Weather Forecast for today -- Rain will continue over the Southeast with clearing from the west over Arkansas and Louisiana. Snow will spread from the Ohio Valley into the Virginias and New England. Snowshowers will be scattered over the Great Lakes region. Rain will continue over the coast of the Pacific Northwest with snow scattering across the Cascades into the northern Rockies as far east as the Dakotas. Sunny skies will stretch from the upper Mississippi Valley through the Southwest to the West Coast. Slightly warmer readings will speckle the southern half of the nation with the Golf Coast in the 50s, tht West Coast in the 60s and southern Florida in the upper 70s. Freezing weather will continue from Montana and Nebraska through the Ohio Valley into the northeastern corner of the nation.

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 3 p.m. period was 13 for the pollutant, photochemical Oxidants. Index values between 0 and 24 indicate good 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 remain in the good range.

The National Weather Service forecasts the Potomac River Stage at Little Falls should remain between 3.8 and 3.9 feet today.

Washington data for yesterday: Highest temperature since midnight yesterday, 34 degrees at 2:30 p.m. Lowest temperature since midnight, 16 degrees at 7:05 a.m. Deficiency of temperature since Feb. 1, 30 degrees. Deficiency of temperature since Jan. 1, 37 degrees. Record high temperature for today, 64 degrees in 1887. Record low temperature for today, 3 degrees in 1907. Relative humidity: maximum, 43 percent at 5 a.m.; minimum, 18 percent at 3 p.m. 24 hour precipitation, none. Deficiency of precipitation since Feb. 1, .48 inches. Excess of precipitation since Jan. 1, 3.54 inches. Highest observed wind since 7 a.m., 14 miles per houf from the northwest at 9:53 a.m. Peak gust since 7 a.m., 20 miles per hour from the northwest at 9:58 a.m. (TABLE) *3*Local Temp., Humidity Time(COLUMN)T.(COLUMN)H. 12 Mid.(COLUMN)20(COLUMN)34 1 a.m.(COLUMN)19(COLUMN)39 2 a.m.(COLUMN)19(COLUMN)39 3 a.m.(COLUMN)18(COLUMN)41 4 a.m.(COLUMN)18(COLUMN)41 5 a.m.(COLUMN)17(COLUMN)43 6 a.m.(COLUMN)17(COLUMN)41 7 a.m.(COLUMN)17(COLUMN)41 8 a.m.(COLUMN)18(COLUMN)37 9 a.m.(COLUMN)20(COLUMN)34 10 a.m.(COLUMN)24(COLUMN)29 11 a.m.(COLUMN)27(COLUMN)22 12 noon(COLUMN)29(COLUMN)21 1 p.m.(COLUMN)31(COLUMN)20 2 p.m.(COLUMN)32(COLUMN)19 3 p.m.(COLUMN)33(COLUMN)18 4 p.m.(COLUMN)32(COLUMN)20 5 p.m.(COLUMN)32(COLUMN)22 6 p.m.(COLUMN)31(COLUMN)25 7 p.m.(COLUMN)31(COLUMN)27 8 p.m.(COLUMN)31(COLUMN)27 9 p.m.(COLUMN)31(COLUMN)27 10 p.m.(COLUMN)31(COLUMN)29 11 p.m.(COLUMN)30(COLUMN)37(END TABLE)(TABLE) *3*Temperatures ending 7 p.m. (EST) yesterday: City(COLUMN)L.(COLUMN)H. Albany(COLUMN)03(COLUMN)15 Albuquerque(COLUMN)21(COLUMN)45 Amarillo(COLUMN)30(COLUMN)46 Anchorage(COLUMN)11(COLUMN)17 Asheville(COLUMN)23(COLUMN)34 Atlanta(COLUMN)30(COLUMN)34 Atlantic City(COLUMN)17(COLUMN)30 Austin(COLUMN)36(COLUMN)51 Baltimore(COLUMN)12(COLUMN)31 Billings(COLUMN)21(COLUMN)33 Birmingham(COLUMN)34(COLUMN)38 Bismarck(COLUMN)20(COLUMN)40 Boise(COLUMN)20(COLUMN)40 Boston(COLUMN)13(COLUMN)27 Brownsville(COLUMN)46(COLUMN)61 Buffalo(COLUMN)03(COLUMN)15 Burlington, Vt.(COLUMN)-03(COLUMN)07 Casper(COLUMN)09(COLUMN)29 Charleston, S.C.(COLUMN)35(COLUMN)40 Charleston, W.V.(COLUMN)02(COLUMN)32 Charlotte(COLUMN)29(COLUMN)36 Cheyenne(COLUMN)21(COLUMN)33 Chicago(COLUMN)-07(COLUMN)23 Cincinnati(COLUMN)-01(COLUMN)28 Cleveland(COLUMN)02(COLUMN)24 Columbia, S.C.(COLUMN)31(COLUMN)40 Columbus(COLUMN)-06(COLUMN)23 Dal. Ft. Worth(COLUMN)31(COLUMN)36 Dayton(COLUMN)-02(COLUMN)26 Denver(COLUMN)19(COLUMN)35 Des Moines(COLUMN)08(COLUMN)29 Detroit(COLUMN)-03(COLUMN)23 Duluth(COLUMN)0(COLUMN)09 El Paso(COLUMN)33(COLUMN)50 Evansville(COLUMN)05(COLUMN)34 Fairbanks(COLUMN)-46(COLUMN)-36 Fargo(COLUMN)-05(COLUMN)03 Flagstaff(COLUMN)-02(COLUMN)39 Great Falls(COLUMN)13(COLUMN)35 Hartford(COLUMN)08(COLUMN)20 Helena(COLUMN)19(COLUMN)32 Honolulu(COLUMN)62(COLUMN)78 Houston(COLUMN)41(COLUMN)44 Indianapolis(COLUMN)-04(COLUMN)26 Jackson(COLUMN)34(COLUMN)41 Jacksonville(COLUMN)44(COLUMN)62 Juneau(COLUMN)07(COLUMN)09 Kansas City(COLUMN)11(COLUMN)32 Las Vegas(COLUMN)32(COLUMN)61 Little Rock(COLUMN)23(COLUMN)32 Los Angeles(COLUMN)41(COLUMN)68 Louisville(COLUMN)12(COLUMN)35 Memphis(COLUMN)29(COLUMN)38 Miami Beach(COLUMN)69(COLUMN)75 Midland(COLUMN)18(COLUMN)41 Milwaukee(COLUMN)-03(COLUMN)20 Mpls.-St. Paul(COLUMN)09(COLUMN)17 Nashville(COLUMN)21(COLUMN)35 New Orleans(COLUMN)43(COLUMN)50 New York(COLUMN)16(COLUMN)29 Norfolk(COLUMN)23(COLUMN)32 North Plate(COLUMN)13(COLUMN)26 Oklahoma City(COLUMN)25(COLUMN)32 Omaha(COLUMN)10(COLUMN)27 Orlando(COLUMN)47(COLUMN)80 Philadelphia(COLUMN)12(COLUMN)29 Phoenix(COLUMN)36(COLUMN)60 Pittsburgh(COLUMN)-07(COLUMN)18 Portland, Me.(COLUMN)07(COLUMN)22 Portland, Ore.(COLUMN)41(COLUMN)54 Providence(COLUMN)10(COLUMN)24 Raleigh(COLUMN)23(COLUMN)36 Rapid City(COLUMN)18(COLUMN)25 Reno(COLUMN)25(COLUMN)51 Richmond(COLUMN)13(COLUMN)31 St. Louis(COLUMN)11(COLUMN)34 St. Prbg.-Tampa(COLUMN)52(COLUMN)77 Salt Lake City(COLUMN)26(COLUMN)33 San Antonio(COLUMN)40(COLUMN)62 San Diego(COLUMN)45(COLUMN)63 San Francisco(COLUMN)49(COLUMN)63 San Juan(COLUMN)71(COLUMN)83 St. Ste. Marie(COLUMN)-16(COLUMN)07 Seattle(COLUMN)43(COLUMN)52 Shreveport(COLUMN)33(COLUMN)36 Sioux Falls(COLUMN)02(COLUMN)28 Spokane(COLUMN)21(COLUMN)35 Syracuse(COLUMN)-04(COLUMN)16 Topeka(COLUMN)10(COLUMN)34 Tucson(COLUMN)32(COLUMN)56 Tulso(COLUMN)25(COLUMN)32 Washington(COLUMN)16(COLUMN)34 Wichita(COLUMN)16(COLUMN)31(END TABLE) (TABLE) *4*Temperatures Abroad Yesterday City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)smoke(COLUMN)1 p.m. 30 Amsterdam(COLUMN)fog(COLUMN)1 p.m.(COLUMN)27 Ankara(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)50 Athens(COLUMN)rain(COLUMN)2 p.m.(COLUMN)54 Auckland(COLUMN)drizzle(COLUMN)mid.(COLUMN)66 Berlin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)30 Birmingham(COLUMN)clear(COLUMN)1 p.m.(COLUMN)36 Bonn(COLUMN)clear(COLUMN)1 p.m.(COLUMN)34 Brussels(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)32 Casablanca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)75 Copenhagen(COLUMN)clear(COLUMN)1 p.m.(COLUMN)30 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)41 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)46 Hong Kong(COLUMN)clear(COLUMN)8 p.m.(COLUMN)63 Jerusalem(COLUMN)clear(COLUMN)2 p.m.(COLUMN)63 Lisbon(COLUMN)cloudy(COLUMN)noon(COLUMN)59 London(COLUMN)clear(COLUMN)1 p.m.(COLUMN)36 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)57 Malta(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)82 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)25 New Delhi(COLUMN)pt. cldy.(COLUMN)5 p.m.(COLUMN)63 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)59 Oslo(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)16 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Peking(COLUMN)smoke(COLUMN)8 p.m.(COLUMN)30 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)61 Saigon(COLUMN)pt. cldy.(COLUMN)8 p.m.(COLUMN)82 Sofia(COLUMN)rain(COLUMN)2 p.m.(COLUMN)46 Stockholm(COLUMN)clear(COLUMN)1 p.m.(COLUMN)10 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)61 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)46 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)66 Vienna(COLUMN)haze(COLUMN)1 p.m.(COLUMN)37 Warsaw(COLUMN)snow(COLUMN)1 p.m.(COLUMN)21(END TABLE)(TABLE) *4*Temperatures (Western Hemisphere) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)fair(COLUMN)88(COLUMN)72 Barbados(COLUMN)clear(COLUMN)82(COLUMN)73 Bermuda(COLUMN)cloudy(COLUMN)68(COLUMN)57 Culiacan(COLUMN)fair(COLUMN)86(COLUMN)77 Havana(COLUMN)fair(COLUMN)82(COLUMN)64 Kingston(COLUMN)clear(COLUMN)86(COLUMN)72 Montego Bay(COLUMN)fair(COLUMN)85(COLUMN)66 Mexico City(COLUMN)fair(COLUMN)79(COLUMN)54 Monterrey(COLUMN)clear(COLUMN)64(COLUMN)45 Nassau(COLUMN)fair(COLUMN)77(COLUMN)59 St. Kitts(COLUMN)clear(COLUMN)84(COLUMN)72 Veracruz(COLUMN)fair(COLUMN)80(COLUMN)66(END TABLE)