Washington: Today -- cloudy and cold, high in mid 41s, low in upper 30s. Chance of precipitation is 36 percent today and 50 percent tonight. Winds will be northeasterly, at 15 mph. Monday -- partly cloudy, high in mid 50s.

Maryland and Virginia: Today -- Cloudy with a chance of snow forces in the mountains. High from the 30s to the 40s and low in the 30s. Monday -- Chance of rain, high in the 50s.

Lower Potomac and Chesapeake Bay: Cloudy, visibility five miles or less. Winds will be from east at 12 knots. Waves in unprotected waters will be 2 feet.

West Virginia: Today-Rain, high in mid 30s to 41s, low in mid 31s. There will be some snow in the north changing to rain by evening. Monday-Occasional rain, high in mid 40s to 50s.

Extended Area Outlook for Tuesday through Thursday: There will be a chance of rain on Tuesday and rain or possibly snow in the northern mountains on Wednesday. Thursday be fair. Highs will be in the 50s and low in the 30s and 40s. Normal Washington temperatures for the period will be a high of 51 and a low of 34.

The Nation Yesterday: Heavy snow warnings, winter storms watches, travellers advisories for stockmen stretched from the intermountain region and the Rockies across the central Great Plains. Heavy snow warnings were posted for southwestern Wyoming and through tonight for the south and central mountains of Colorado. Travel advisories for snow were in effect for the mountains in east central Nevada, all of Utah, parts of the southwestern Colorado and portions of the central New Mexico mountains. A stockman advisory was issued for portions of western and central Kansas. Heavy snow warnings were posted for northeast Kansas and winter storm watches covered eastern Colorado and southeastern Wyoming all of Nebraska and southern and eastern Iowa. Rain and snow will be changing to snow over eastern Colorado and southeasten Wyoming, and it will replace the rain across portions of the central Great Plains. Another cold front moving southward through the western Great Plains region was spreading light snow from Minnesota across Michigan. Winter storm watches were posted for extreme southeastern and extreme southern Wisconsin and in extreme northern Illinois. There was more snow east of a low pressure system through northern Ohio, western New York and western Pennyslvania.

The National Weather forecast for today-Snow furries will linger over the Rockies, eastern Washington and the northern Great Plains. Snow will reach from the central Great Plains through Iowa, the upper Mississippi Valley and much of the Great Lakes region. Rain or rain showers will stretch from the southern Great Plains and the lower half of the Mississippi Valley across the Ohio and Tennessee Valley and the Appalachians through the Carolinas and the mid Atlantic Coast states. There will also be scattered thundershowers from the eastern third of Texas through Alabama. Partly cloudy skies will prevail elswhere. It will be colder over the south and central Great Plains and except for mild temperatures over such Texas and Florida, the remainder of the nation will continue to be seasonably cold.

Almanac Data for today: The sun rises 7:02 a.m., sets 4:48 p.m.; moon rises 2:49 a.m., sets 2:42 p.m. Tides: high 4:14 a.m. and 4:47 p.m., low 11:15 a.m. and 11:47 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 ), 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 5 for the pollutant, carbon monoxide 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 good.

The National Weather Service forecasts the Potamac River stage at Little Falls should remain near 3 feet today. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnight(COLUMN)46(COLUMN)49 1 a.m.(COLUMN)45(COLUMN)57 2 a.m.(COLUMN)45(COLUMN)49 3 a.m.(COLUMN)44(COLUMN)49 4 a.m.(COLUMN)43(COLUMN)51 5 a.m.(COLUMN)43(COLUMN)49 6 a.m.(COLUMN)43(COLUMN)49 7 a.m.(COLUMN)43(COLUMN)49 8 a.m.(COLUMN)43(COLUMN)47 9 a.m.(COLUMN)43(COLUMN)47 10 a.m.(COLUMN)43(COLUMN)47 11 a.m.(COLUMN)44(COLUMN)45 12 noon(COLUMN)46(COLUMN)42 1 p.m.(COLUMN)45(COLUMN)43 2 p.m.(COLUMN)46(COLUMN)44 3 p.m.(COLUMN)46(COLUMN)42 4 p.m.(COLUMN)45(COLUMN)40 5 p.m.(COLUMN)44(COLUMN)41 6 p.m.(COLUMN)44(COLUMN)41(END TABLE) Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)44(COLUMN)34 Albuquerque(COLUMN)54(COLUMN)45 Amarillo(COLUMN)58(COLUMN)50 Anchorage(COLUMN)23(COLUMN)14 Asheville(COLUMN)63(COLUMN)34 Atlanta(COLUMN)70(COLUMN)40 Atlantic City(COLUMN)54(COLUMN)38 Austin(COLUMN)73(COLUMN)67 Baltimore(COLUMN)59(COLUMN)37 Billings(COLUMN)28(COLUMN)08 Birmingham(COLUMN)72(COLUMN)39 Bismarck(COLUMN)36(COLUMN)17 Boise(COLUMN)43(COLUMN)29 Boston(COLUMN)48(COLUMN)35 Brownsville(COLUMN)84(COLUMN)71 Buffalo(COLUMN)45(COLUMN)33 Burlington(COLUMN)36(COLUMN)28 Casper(COLUMN)38(COLUMN)11 Charleston. S. C.(COLUMN)80(COLUMN)52 Charleston, W. Va.(COLUMN)57(COLUMN)35 Charlotte(COLUMN)69(COLUMN)41 Cheyenne(COLUMN)46(COLUMN)25 Chicago(COLUMN)37(COLUMN)26 Cincinnati(COLUMN)50(COLUMN)30 Cleveland(COLUMN)48(COLUMN)33 Columbia, S.C.(COLUMN)77(COLUMN)35 Columbus(COLUMN)49(COLUMN)32 Dal. Ft. Worth(COLUMN)72(COLUMN)64 Dayton(COLUMN)46(COLUMN)29 Denver(COLUMN)47(COLUMN)30 Des Moines(COLUMN)47(COLUMN)27 Detroit(COLUMN)42(COLUMN)30 Duluth(COLUMN)21(COLUMN)10 El Paso(COLUMN)69(COLUMN)54 Fairbanks(COLUMN)33(COLUMN)06 Fargo(COLUMN)26(COLUMN)16 Flagstaff(COLUMN)41(COLUMN)29 Great Falls(COLUMN)33(COLUMN)15 Hartford(COLUMN)44(COLUMN)33 Helena(COLUMN)29(COLUMN)21 Honolulu(COLUMN)82(COLUMN)67 Houston(COLUMN)76(COLUMN)68 Indianapolis(COLUMN)41(COLUMN)27 Jackson, Miss.(COLUMN)76(COLUMN)42 Jacksonville(COLUMN)79(COLUMN)46 Juneau(COLUMN)40(COLUMN)36 Kansas City(COLUMN)50(COLUMN)42 Las Vegas(COLUMN)50(COLUMN)42 Little Rock(COLUMN)62(COLUMN)44 Los Angeles(COLUMN)66(COLUMN)53 Louisville(COLUMN)54(COLUMN)27 Memphis(COLUMN)61(COLUMN)39 Miami Beach(COLUMN)85(COLUMN)67 Midland-Odessa(COLUMN)64(COLUMN)58 Milwaukee(COLUMN)34(COLUMN)26 Mpls.-St Paul(COLUMN)27(COLUMN)10 Nashville(COLUMN)58(COLUMN)31 New Orleans(COLUMN)78(COLUMN)62 New York(COLUMN)52(COLUMN)41 Norfolk(COLUMN)67(COLUMN)42 North Platte(COLUMN)51(COLUMN)25 Oklahoma City(COLUMN)65(COLUMN)51 Omaha(COLUMN)46(COLUMN)32 Orlando(COLUMN)83(COLUMN)63 Philadephia(COLUMN)57(COLUMN)39 Phoenix(COLUMN)69(COLUMN)50 Pittsburgh(COLUMN)47(COLUMN)30 Portland. Ma.(COLUMN)36(COLUMN)31 Portland. Ore.(COLUMN)34(COLUMN)30 Providence(COLUMN)43(COLUMN)34 Raleigh(COLUMN)68(COLUMN)32 Rapid City(COLUMN)41(COLUMN)18 Reno(COLUMN)48(COLUMN)19 Richmond(COLUMN)68(COLUMN)34 St. Louis(COLUMN)45(COLUMN)33 St. Petersburg(COLUMN)(COLUMN) Salt Lake City(COLUMN)49(COLUMN)34 San Diego(COLUMN)62(COLUMN)58 San Francisco(COLUMN)60(COLUMN)50 San Juan(COLUMN)48(COLUMN)74 St. Ste. Marie(COLUMN)34(COLUMN)11 Seattle(COLUMN)47(COLUMN)38 Shreveport(COLUMN)77(COLUMN)54 Sioux Falls(COLUMN)47(COLUMN)19 Spokane(COLUMN)32(COLUMN)28 Syracuse(COLUMN)47(COLUMN)33 Topeka(COLUMN)51(COLUMN)42 Tucson(COLUMN)66(COLUMN)49 Tulsa(COLUMN)63(COLUMN)50 Washington(COLUMN)61(COLUMN)63 Wichita(COLUMN)54(COLUMN)46(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)Clear(COLUMN)1 p.m.(COLUMN)37 Amsterdam(COLUMN)rain(COLUMN)1 p.m.(COLUMN)43 Ankara(COLUMN)clear(COLUMN)3 p.m.(COLUMN)60 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)61 Auckland(COLUMN)clear(COLUMN)12 a.m.(COLUMN)57 Berlin(COLUMN)rain(COLUMN)1 p.m.(COLUMN)43 Birmingham(COLUMN)clear(COLUMN)1 p.m.(COLUMN)43 Bonn(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)45 Brussels(COLUMN)Cloudy(COLUMN)1 p.m.(COLUMN)45 Casablanca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)66 Copenhagen(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)41 Dublin(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)37 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)43 Hong Kong(COLUMN)clear(COLUMN)3 p.m.(COLUMN)68 Jerusalem(COLUMN)clear(COLUMN)2 p.m.(COLUMN)61 Lisbon(COLUMN)clear(COLUMN)noon(COLUMN)61 London(COLUMN)clear(COLUMN)1 p.m.(COLUMN)45 Madrid(COLUMN)clear(COLUMN)1 p.m.(COLUMN)50 Malta(COLUMN)rain(COLUMN)1 p.m.(COLUMN)57 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)79 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)30 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)70 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)59 Oslo(COLUMN)clear(COLUMN)1 p.m.(COLUMN)36 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)46 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)41 Rome(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)59 Saigon(COLUMN)clear(COLUMN)8 p.m.(COLUMN)81 Sofia(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)34 Stockholm(COLUMN)clear(COLUMN)1 p.m.(COLUMN)34 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)72 Tokyo(COLUMN)cloudy(COLUMN)9 p.m.(COLUMN)52 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)63 Vienna(COLUMN)fog(COLUMN)1 P.m.(COLUMN)30 Warsaw(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)46(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)fair(COLUMN)90(COLUMN)75 Barbados(COLUMN)pt. cldy(COLUMN)86(COLUMN)75 Bermuda(COLUMN)fair(COLUMN)76(COLUMN)67 Bogota(COLUMN)cloudy(COLUMN)59(COLUMN)46 Calgary(COLUMN)clear(COLUMN)37(COLUMN)25 Edmonton(COLUMN)cloudy(COLUMN)36(COLUMN)23 Havana(COLUMN)pt. cldy(COLUMN)90(COLUMN)73 Kingston(COLUMN)pt. cldy(COLUMN)87(COLUMN)75 Montego Bay(COLUMN)fair(COLUMN)85(COLUMN)72 Mexico City(COLUMN)pt. cldy(COLUMN)75(COLUMN)52 Monterrey(COLUMN)cloudy(COLUMN)70(COLUMN)66 Montreal(COLUMN)cloudy(COLUMN)37(COLUMN)25 Nassau(COLUMN)pt. cldy(COLUMN)82(COLUMN)72 Ottawa(COLUMN)cloudy(COLUMN)37(COLUMN)21 Regina(COLUMN)cloudy(COLUMN)30(COLUMN)3 St. Kitts(COLUMN)pt. cldy(COLUMN)87(COLUMN)72 Toronto(COLUMN)snow(COLUMN)43(COLUMN)30 Vancouver(COLUMN)cloudy(COLUMN)43(COLUMN)39 Vera Cruz(COLUMN)pt. cldy(COLUMN)78(COLUMN)73 Winnipeg(COLUMN)snow(COLUMN)19(COLUMN)5(END TABLE)