Washington: Today -- Increasing cloudiness with a 40 percent chance of rain possibly beginning as steet or freezing rain, high near 40, low near 30. Winds will shift to the south at near 10 mph. Wednesday -- Cloudy with occasional rain likely, high again near 40.

Maryland and Virginia: Today -- Increasing cloudiness with a chance of sonw in the mountains and rain elsewhere, possibly beginning as sleet or freezing rain, highs from the 30s to the low 40s, lows from the mid 20s to the low 30s. Wednesday -- Cloudy with occasional rain likely, highs from the 30s to the low 40s.

West Virginia: Today -- Cloudy with a chance of snow flurries, highs from the 30s to the low 40s, lows in the teens and 20s. Wednesday -- Cloudy with a chance of light snow, highs from the mid 20s to the low 30s.

Extend Area Forecast for Thursday through Saturday -- Fair through the period. Highs will average in the 30s, lows from the upper 20s to the low 30s. Normal Washington area temperatures are a high of 44 and a low of 28.

Lower Potomac and Chesapeake Bay -- Increasing cloudiness, wiht a chance of rain by nighfall. Visibility will be 5 miles or more diminishing to less than 1 mile in rain. Winds will be from the northeast at up to 12 knots, shifting to the east at 10 knots or less by nighfall. Waves will average near 1 foot.

The Nation Yesterday: Cloudy skies covered most of the Nation. A stationary front stretched across the Rockies spreading snowshowers throughout this region. Another frontal system in the central Plains was pushing snow through the Midwest. Light snow was scattered from southeren Missouri, through Illinois and Wisconsin and into the Great Lakes region. Cold weather gripped most of the nation. The northern Plains and the Great Lakes region were near zero or below. Temperatures across the Gulf Coast states were in the 40s with southern Florida in th 470s. Warm air spread from the Southwest into the southern Plains. The National Weather Forecast for today -- Snow-showers will be scattered throughout the Rocky Mountains, into the northern Plains, the upper Mississippi Valley and the Great Lakes region. Showers will continue in the Pacific Northwest and over southern California. Southern Texas and the lower Mississippi Valley will also have a few showers. Nost of the nation will be cloudy, but the sun will peek through over the sougheastern quarter. The most pleasant weather will be over southern Florida where the sunshine will bring temperatures into the 70s. Bitter cold will continue over the northern third of the nation with few places above freezing.

Almanac Data for today: The sun rises 7:25 a.m., sets 5:10 p.m.; The moon rises 7:36 p.m., sets 8:35 a.m. Tides: high 9:53 a.m. and 9:53 p.m., low 4:37 a.m. and 4:41 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 Isaldn (6 1/4), Point Lookout (7).

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 3 p.m. period was 14 for the polletant, photochemical oxidants. Index values between 2 to 24 indicate good air quality. When the index exceeds 100 the air is considered very unhealthy 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 near 4.3 feet today.

Washington data for yesterday: Highest temperature since midnight yesterday, 35 degrees at 2:40 p.m. Lowest temperature since midnight, 22 degrees at 7:20 a.m. Deficiency of temperature since Jan. 1, 26 degrees. Record high temperature for today, 73 degrees in 1953. Record low temperature for today, 2 degrees in 1893. Relative humidity: maximum, 42 percent at 3 a.m.; minimum, 26 percent at noon. 24 hour precipitation, none. Excess of precipitation since Jan. 1, 2:30 inches. Highest observed wind since 7 a.m., 16 miles per hour from the westnorthwest at 7:53 a.m. Peak qust since 7 a.m., 30 miles per hour from the northwest at 9:13 a.m. Local Temp., Humidity (TABLE) Time(COLUMN)T.(COLUMN)H. 12 kmid.(COLUMN)33(COLUMN)45 1 a.m.(COLUMN)30(COLUMN)41 2 a.m.(COLUMN)30(COLUMN)37 3 a.m.(COLUMN)28(COLUMN)42 4 a.m.(COLUMN)27(COLUMN)40 5 a.m.(COLUMN)26(COLUMN)35 6 a.m.(COLUMN)25(COLUMN)32 7 a.m.(COLUMN)24(COLUMN)32 8 a.m.(COLUMN)23(COLUMN)33 9 a.m.(COLUMN)24(COLUMN)32 10 a.m.(COLUMN)26(COLUMN)29 11 a.m.(COLUMN)29(COLUMN)28 12 noon(COLUMN)32(COLUMN)2l 1 p.m.(COLUMN)33(COLUMN)26 2 p.m.(COLUMN)34(COLUMN)28 3 p.m.(COLUMN)35(COLUMN)27 4 p.m.(COLUMN)35(COLUMN)28 5 p.m.(COLUMN)33(COLUMN)35 6 p.m.(COLUMN)33(COLUMN)35 7 p.m.(COLUMN)33(COLUMN)33 8 p.m.(COLUMN)32(COLUMN)36 9 p.m.(COLUMN)32(COLUMN)38 10 p.m.(COLUMN)32(COLUMN)38 11 p.m.(COLUMN)32(COLUMN)41(END TABLE) Temperaures ending 7 p.m. (EST) yesterday: (TABLE) City(COLUMN)L.(COLUMN)H. Albany(COLUMN)12(COLUMN)23 Albuqueraue(COLUMN)33(COLUMN)45 Amarillo(COLUMN)23(COLUMN)58 Anchorage(COLUMN)27(COLUMN)32 Asheville(COLUMN)14(COLUMN)44 Atlanta(COLUMN)17(COLUMN)44 Atlantic City(COLUMN)22(COLUMN)28 Austin(COLUMN)23(COLUMN)44 Baltimore(COLUMN)22(COLUMN)32 Bitlings(COLUMN)-05(COLUMN)00 Birmingham(COLUMN)15(COLUMN)43 Bismarck(COLUMN)-23(COLUMN)-04 Boise(COLUMN)24(COLUMN)37 Boston(COLUMN)21(COLUMN)27 Brownsville(COLUMN)39(COLUMN)65 Buffalo(COLUMN)07(COLUMN)11 Burlington, Vt.(COLUMN)08(COLUMN)17 Casper(COLUMN)22(COLUMN)31 Charleston, S.C.(COLUMN)27(COLUMN)42 Charl'ton, W.V.(COLUMN)08(COLUMN)26 Charlotte(COLUMN)19(COLUMN)42 Cheyenne(COLUMN)19(COLUMN)39 Chicago(COLUMN)-19(COLUMN)04 Cincinnati(COLUMN)-06(COLUMN)13 Cleveland(COLUMN)-01(COLUMN)13 Columbia, S.C.(COLUMN)23(COLUMN)49 Columbus(COLUMN)-04(COLUMN)11 Dal.-Ft. Worth(COLUMN)19(COLUMN)41 Dayton(COLUMN)-06(COLUMN)12 Denver(COLUMN)09(COLUMN)49 Des Moines(COLUMN)-17(COLUMN)12 Detroit(COLUMN)-12(COLUMN)05 Duluth(COLUMN)-21(COLUMN)03 El Paso(COLUMN)32(COLUMN)57 Evansiville(COLUMN)-07(COLUMN)19 Fairbanks(COLUMN)-19(COLUMN)03 Fargo(COLUMN)-20(COLUMN)09 Flagstaff(COLUMN)27(COLUMN)36 Great Falls(COLUMN)-10(COLUMN)-01 Hartford(COLUMN)18(COLUMN)27 Helena(COLUMN)-03(COLUMN)08 Indianapolis(COLUMN)-06(COLUMN)10 Jackson(COLUMN)16(COLUMN)47 Jacksonville(COLUMN)22(COLUMN)47 Juneau(COLUMN)13(COLUMN)26 Kansas City(COLUMN)-10(COLUMN)24 Las Vegas(COLUMN)37(COLUMN)49 Little Rock(COLUMN)11(COLUMN)31 Los Angeles(COLUMN)49(COLUMN)54 Louisville(COLUMN)00(COLUMN)19 Memphis(COLUMN)15(COLUMN)36 Miami Beach(COLUMN)55(COLUMN)69 Midland(COLUMN)26(COLUMN)49 Milwaukee(COLUMN)-16(COLUMN)-01 Mpls.-St. Paul(COLUMN)-16(COLUMN)03 Nashville(COLUMN)04(COLUMN)31 New Orleans(COLUMN)25(COLUMN)48 New York(COLUMN)21(COLUMN)27 Norfolk(COLUMN)28(COLUMN)38 North Platte(COLUMN)-01(COLUMN)16 Oklanhoma City(COLUMN)11(COLUMN)37 Omaha(COLUMN)-06(COLUMN)16 Orlando(COLUMN)35(COLUMN)65 Philadelphia(COLUMN)21(COLUMN)29 Phoenix(COLUMN)49(COLUMN)63 Pittsburgh(COLUMN)-02(COLUMN)14 Portland, Me.(COLUMN)11(COLUMN)19 Portland, Ore.(COLUMN)25(COLUMN)39 Providence(COLUMN)20(COLUMN)27 Raleigh(COLUMN)20(COLUMN)41 Rapid City(COLUMN)-04(COLUMN)02 Reno(COLUMN)32(COLUMN)43 Richmond(COLUMN)20(COLUMN)39 St. Louis(COLUMN)-08(COLUMN)17 St. Prbg.-Tamp.(COLUMN)34(COLUMN)64 Salt Lake City(COLUMN)35(COLUMN)40 San Antonio(COLUMN)25(COLUMN)47 San Diego(COLUMN)58(COLUMN)62 San Francisco(COLUMN)48(COLUMN)52 San Juan(COLUMN)74(COLUMN)85 St. Ste. Marie(COLUMN)-10(COLUMN)08 Seattle(COLUMN)36(COLUMN)42 Shreveport(COLUMN)18(COLUMN)46 Sioux Falls(COLUMN)-21(COLUMN)06 Spokane(COLUMN)13(COLUMN)21 Syracuse(COLUMN)11(COLUMN)16 Topeka(COLUMN)-14(COLUMN)27 Tucson(COLUMN)48(COLUMN)62 Tulsa(COLUMN)08(COLUMN)35 Washington(COLUMN)22(COLUMN)35 Wichita(COLUMN)02(COLUMN)32(END TABLE) Temperatures Abroad Yesterday (TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Amsterdam(COLUMN)haze(COLUMN)1 p.m.(COLUMN)32 Ankara(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)43 Athens(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)46 Auckland(COLUMN)clear(COLUMN)midnight(COLUMN)61 Berlin(COLUMN)snow(COLUMN)1 p.m.(COLUMN)30 Birmingham(COLUMN)fog(COLUMN)1 p.m.(COLUMN)23 Brussels(COLUMN)clear(COLUMN)1 p.m.(COLUMN)27 Casabtanca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)66 Copenhagen(COLUMN)clear(COLUMN)1 p.m.(COLUMN)28 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)52 Geneva(COLUMN)clear(COLUMN)1 p.m.(COLUMN)28 Hong Kong(COLUMN)rain(COLUMN)8 p.m.(COLUMN)48 Jerusalem(COLUMN)clear(COLUMN)2 p.m.(COLUMN)61 Lisbon(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)52 London(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)43 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)46 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)75 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)14 New Delhi(COLUMN)cloudy(COLUMN)5 p.m.(COLUMN)68 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)46 Oslo(COLUMN)clear(COLUMN)1 p.m.(COLUMN)12 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)32 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)21 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)43 Saigon(COLUMN)pt. cldy.(COLUMN)8 p.m.(COLUMN)79 Sofia(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)27 Stockholm(COLUMN)snow(COLUMN)1 p.m.(COLUMN)27 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)70 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)43 Tunis(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)48 Vienna(COLUMN)snow(COLUMN)1 p.m.(COLUMN)30 Warsaw(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)28(END TABLE)