Washington: Today -- Light showers changing to snow flurries and turning sharply colder and windy later in the day, high near 50, low in the teens. Wind will be from the northwest at 30 to 35 mph. Chance of precipitation is 80 percent today, 20 percent tonight. Monday -- Cloudy, high in mid 20s.

Maryland and Virginia: Today -- Rain changing to snow and becoming colder by late afternoon, highs around 50, lows in the teens. Monday -- Sunny and cold, highs in the 20s.

West Virginia: Today -- Snow, highs in the 30s, lows in the low teens. Monday -- Clearing, highs in the 20s.

Extended Area Forecast for Tuesday through Thursday -- Cold with snow likely. Tuesday through Wednesday morning, highs from mid 20s to mid 30s, lows from the teens to mid 20s.

Lower Potomac and Chesapeake Bay -- Rain changing to snow flurries by evening. Visibility will be peor through the rain and fog, fair through the flurries. Winds will be from the south at 12 to 20 knots early, shifting to the northwest and increasing to 18 to 30 knots and gusty by afternoon. Waves will be near 2 feet, building to between 3 and 4 feet by evening.

The National Weather Service forecasts the Potomac River stage at Little Falls should remain near 4.4 feet today.

The National Weather Forecast for today -- Freezing rain will extend from parts of northern New England across southeastern New York. Rain will reach from southern New England southward east of the Appalachians through Florida. Snow will extend from the eastern half of the Great Lakes region and the upper Ohio Valley over the northern Appalachians. Rain, with snow over the higher mountains, will continue from California over most of the Pacific Northwest into western Nevada and southwest Idaho. Snow shall spread over eastern Washington, Montana, the rest of Idaho and northwest Wyoming. The remainder of the nation will have sunny or partly cloudy skies. Extremely cold temperatures will continue from the northern half of the Rockies, the Great Plains, the Mississippi Valley and the lower Ohio Valley. It will be seasonably cold elsewhere in the nation.

The Nation Yesterday: A winter storm spread heavy snow and strong gusty wings through the midwest. Its center passed through southern Illinois, producing northerly winds up to 40 mph, through Missouri, Illinois and lowa. Temperatures were below zero over most of Nebraska while winds whipped snow about. The heavy snow stretched across the Great Lakes region into the interior sections of New England. The main problem in the northeast was ice with freezing rain in Pennsylvania and New York. Light rain continued over the Gulf Coast states to the middle Atlantic Coast states. Bitter cold thrust into the Plains. With clearing skies the northern Plains were well below zero with winds gusting to 30 and 40 mph. Readings below zero were already dipping into Kansas and Missouri. Southern Texas and southern Florida had plenty of sunshine with temperatures in the 80s. The southwest corner of the nation was partly cloudy and cool iwth the West Coast in the 60s. Skies were cloudy through the pacific Northwest with a few snowshowers passing the northern Rockies.

Almanac Data for today: The sun rises 7:25 a.m., sets 5:07 p.m.; The moon rises 4:23 p.m., sets 6:21a.m. Tides: high 8:41 a.m. and 8:44 p.m., low 3:27 a.m. and 3:21 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).

The Council of Government's Air Quality Index for yesterday showed the high reading in the Washington area during the 10 a.m. period was 10 for the pollutant, carbon monoxide. Index values between 0-24 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 continue to be good.

Washington data for yesterday: Highest temperature since midnight yesterday, 40 degrees at 4:10 p.m. Lowest temperature since midnight, 29 degrees at 1:21 a.m. Deficiency of temperature since Jan. 1, 21 degrees. Record high temperature for today, 76 degrees in 1932. Record low temperature for today, -- 13 degrees in 1912. Relative humidity: maximum, 97 percent at 5:00 p.m.; minimum, 62 percent at 3:00 p.m. 24 hour precipitation,.63 inches. Excess of precipitation since Jan. 1, 2.24 inches. Highest observed wind since 7 a.m., 13 miles per hour from the north at 7:53 a.m. Peak gust since 7 a.m., 16 miles per hour from the north at 7:55 a.m.

Local Temp., Humidity (TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid.(COLUMN)29(COLUMN)82 1 a.m.(COLUMN)30(COLUMN)82 2 a.m.(COLUMN)29(COLUMN)85 3 a.m.(COLUMN)30(COLUMN)85 4 a.m.(COLUMN)31(COLUMN)82 5 a.m.(COLUMN)32(COLUMN)82 6 a.m.(COLUMN)32(COLUMN)82 7 a.m.(COLUMN)33(COLUMN)79 8 a.m.(COLUMN)33(COLUMN)79 9 a.m.(COLUMN)34(COLUMN)75 10 a.m.(COLUMN)35(COLUMN)72 11 a.m.(COLUMN)35(COLUMN)72 12 noon(COLUMN)36(COLUMN)70 1 p.m.(COLUMN)38(COLUMN)64 2 p.m.(COLUMN)38(COLUMN)64 3 p.m.(COLUMN)39(COLUMN)62 4 p.m.(COLUMN)38(COLUMN)64 5 p.m.(COLUMN)38(COLUMN)97 6 p.m.(COLUMN)37(COLUMN)92 7 p.m.(COLUMN)36(COLUMN)95 8 p.m.(COLUMN)36(COLUMN)69 9 p.m.(COLUMN)36(COLUMN)92 10 p.m.(COLUMN)36(COLUMN)97(END TABLE)

Temperatures ending 7 p.m. (EST) yesterday: (TABLE) City(COLUMN)L.(COLUMN)H. Albany(COLUMN)14(COLUMN)27 Albuquerque(COLUMN)30(COLUMN)43 Amarillo(COLUMN)7(COLUMN)13 Anchorage(COLUMN)28(COLUMN)31 Asheville(COLUMN)39(COLUMN)45 Atlanta(COLUMN)35(COLUMN)42 Atlantic City(COLUMN)33(COLUMN)41 Austin(COLUMN)34(COLUMN)47 Baltimore(COLUMN)22(COLUMN)40 Billings(COLUMN)-10(COLUMN)-4 Birmingham(COLUMN)42(COLUMN)47 Bismarck(COLUMN)-23(COLUMN)-8 Boise(COLUMN)23(COLUMN)39 Boston(COLUMN)25(COLUMN)37 Brownsvilel(COLUMN)52(COLUMN)83 Buffalo(COLUMN)15(COLUMN)34 Burlington(COLUMN)13(COLUMN)24 Casper(COLUMN)-20(COLUMN)19 Charleston, W.V.(COLUMN)35(COLUMN)50 Charlotte(COLUMN)32(COLUMN)35 Cheyenne(COLUMN)03(COLUMN)14 Chicago(COLUMN)24(COLUMN)31 Cincinnati(COLUMN)27(COLUMN)41 Cleveland(COLUMN)25(COLUMN)40 Columbia(COLUMN)36(COLUMN)44 Columbus(COLUMN)25(COLUMN)39 Dal.-Ft. Worth(COLUMN)23(COLUMN)39 Dayton(COLUMN)27(COLUMN)39 Denver(COLUMN)-5(COLUMN)28 Des Moines(COLUMN)03(COLUMN)17 Detroit(COLUMN)20(COLUMN)32 Duluth(COLUMN)-11(COLUMN)05 El Paso(COLUMN)42(COLUMN)53 Fairbanks(COLUMN)-12(COLUMN)-2 Fargo(COLUMN)-26(COLUMN)-14 Flagstaff(COLUMN)16(COLUMN)35 Great Falls(COLUMN)-22(COLUMN)-10 Hartford(COLUMN)18(COLUMN)31 Helena(COLUMN)-3(COLUMN)03 Houston(COLUMN)37(COLUMN)56 Indianapolis(COLUMN)29(COLUMN)38 Jackson, Miss.(COLUMN)47(COLUMN)59 Jacksonville(COLUMN)45(COLUMN)64 Juneau(COLUMN)03(COLUMN)19 Kansas City(COLUMN)06(COLUMN)13 Las Vegas(COLUMN)39(COLUMN)55 Little Rock(COLUMN)20(COLUMN)36 Los Angeles(COLUMN)43(COLUMN)69 Louisville(COLUMN)31(COLUMN)40 Memphis(COLUMN)36(COLUMN)47 Miami Beach(COLUMN)71(COLUMN)80 Midlnd.-Odessa(COLUMN)22(COLUMN)34 Milwaukee(COLUMN)19(COLUMN)27 Mpls.-St. Paul(COLUMN)00(COLUMN)09 Nashville(COLUMN)40(COLUMN)47 New Orleans(COLUMN)49(COLUMN)65 New York(COLUMN)23(COLUMN)37 Norfolk(COLUMN)42(COLUMN)49 North Platte(COLUMN)-7(COLUMN)00 Oklahoma City(COLUMN)10(COLUMN)17 Omaha(COLUMN)-2(COLUMN)06 Orlando(COLUMN)64(COLUMN)80 Philadelphia(COLUMN)27(COLUMN)39 Phoenix(COLUMN)39(COLUMN)65 Pittsburgh(COLUMN)21(COLUMN)39 Portland, Me.(COLUMN)12(COLUMN)21 Portland, Ore.(COLUMN)33(COLUMN)36 Providence(COLUMN)23(COLUMN)35 Raleigh(COLUMN)34(COLUMN)37 Rapid City(COLUMN)-14(COLUMN)01 Reno(COLUMN)22(COLUMN)36 Richmond(COLUMN)28(COLUMN)33 St. Louis(COLUMN)16(COLUMN)32 St. Prbg.-Tampa(COLUMN)62(COLUMN)75 Salt Lake City(COLUMN)27(COLUMN)35 San Antonio(COLUMN)38(COLUMN)53 San Diego(COLUMN)49(COLUMN)71 San Francisco(COLUMN)48(COLUMN)53 San Juan(COLUMN)73(COLUMN)83 St. Ste. Marie(COLUMN)09(COLUMN)19 Seattle(COLUMN)36(COLUMN)47 Shreveport(COLUMN)33(COLUMN)47 Sioux Falls(COLUMN)-11(COLUMN)-7 Splkane(COLUMN)22(COLUMN)26 Syracuse(COLUMN)13(COLUMN)32 Topeka(COLUMN)04(COLUMN)13 Tucson(COLUMN)39(COLUMN)59 Tulsa(COLUMN)11(COLUMN)26 Washington(COLUMN)29(COLUMN)40 Wichita(COLUMN)04(COLUMN)09(END TABLE)

Temperatures Abroad Yesterday (TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)clear(COLUMN)1 p.m.(COLUMN)28 Amsterdam(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)34 Ankara(COLUMN)pt. cldy(COLUMN)3 p.m.(COLUMN)43 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)55 Auckland(COLUMN)rain(COLUMN)midnight(COLUMN)66 Berlin(COLUMN)snow(COLUMN)1 p.m.(COLUMN)30 Birmingham(COLUMN)fog(COLUMN)1 p.m.(COLUMN)27 Bonn(COLUMN)snow(COLUMN)1 p.m.(COLUMN)34 Brussels(COLUMN)snow(COLUMN)1 p.m.(COLUMN)32 Casablanca(COLUMN)clear(COLUMN)noon(COLUMN)63 Copenhagen(COLUMN)snow(COLUMN)1 p.m.(COLUMN)27 Dublin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)39 Geneva(COLUMN)clear(COLUMN)1 p.m.(COLUMN)34 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)64 Jerusalem(COLUMN)clear(COLUMN)2 p.m.(COLUMN)64 Lisbon(COLUMN)clear(COLUMN)noon(COLUMN)59 London(COLUMN)haze(COLUMN)1 p.m.(COLUMN)32 Madrid(COLUMN)clear(COLUMN)1 p.m.(COLUMN)53 Malta(COLUMN)rain(COLUMN)1 p.m.(COLUMN)52 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)75 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)28 New Delhi(COLUMN)pt. cldy(COLUMN)5 p.m.(COLUMN)72 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)50 Oslo(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)23 Paris(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)34 Peking(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)27 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)48 Saigon(COLUMN)pt. cldy(COLUMN)9 p.m.(COLUMN)81 Sofia(COLUMN)snow(COLUMN)2 p.m.(COLUMN)30 Stockholm(COLUMN)snow(COLUMN)1 p.m.(COLUMN)34 Sydney(COLUMN)cloudy(COLUMN)10 p.m.(COLUMN)70 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)34 Tunis(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)55 Vienna(COLUMN)clear(COLUMN)1 p.m.(COLUMN)37 Warsaw(COLUMN)clear(COLUMN)1 p.m.(COLUMN)23(END TABLE)

Temperatures (Western Hemisphere) (TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Calgary(COLUMN)snow(COLUMN)-04(COLUMN)-15 Edmonton(COLUMN)clear(COLUMN)-08(COLUMN)-27 Montreal(COLUMN)snow(COLUMN)03(COLUMN)00 Offawa(COLUMN)snow(COLUMN)03(COLUMN)00 Regina(COLUMN)snow(COLUMN)-08(COLUMN)-33 Toronto(COLUMN)snow(COLUMN)19(COLUMN)07 Vancouver(COLUMN)cloudy(COLUMN)39(COLUMN)34 Winnipeg(COLUMN)snow(COLUMN)-13(COLUMN)-26 (END TABLE)