Washington: Today -- Rain, heavy at times, high in the 40s, low near 30. The chance of precipitation is near 100 percent through tonight. Winds will be from the southeast at 15 to 25 mph. Thursday -- Partly cloudy, windy and cold, high in the mid 30s.

Maryland and Virginia: Today -- Rain, heavy at times, Possibly changing to snow flurries before ending at night, highs from the mid 30s to the 40s, lows in the 20s in the west, in the 30s in the east. Thursday -- Variable cloudiness, windy and cold, high in the 30s.

West Virginia: Today -- Rain, possibly heavy at times, high in the 40s, low in the teens and 20s. Thursday -- Occasional snow, windy and colder, highs from the mid 20s to the mid 30s.

Lower Potomac and Chesapeake Bay -- Cloudy with a chance of rain or sleet by morning. Visibility will generally be less than 1 mile. Winds will be from the south at 15 to 30 knots shifting to the north-west at 15 to 30 knots by nightfall. Waves will average 2 to 3 feet.

Extended Ara Forecast for Friday through Sunday -- Cold, with a chance of precipitation on Sunday. Highs will average near 40, lows in the 20s. Normal Washington temperatures are a high of 44 and a low of 27.

The Nation Yesterday: A low pressure center and a fast moving cold front combined to produce snow over the mid Mississippi Valley and the Great Lakes region. The storm brought near blizzard conditions to portions of south central Kansas and northern Oklahoma. Blowing an driffing snow was spread from much of Missouri and illinois into Winconsin and Minnesota. Thunderstorms were rrported from southeastern Texas over the lower Mississippi Valley and the central Gulf Coast. Heavy rain also fell on the Gulf Coast states.

The National Weather Forecast for today -- Snow will fall across northern and central New York and also reach from the Great Lakes region over the Ohio, the mid Mississippi and the Tennessee Valieys across parts of the southern Appalachians. Rain will fall over southern New England and from western New York across the central Appalachians through the middle Atlantic Coast states changing to showers over the south Atlantic Coast states. Showers will dampen western section of the Pacific Northwest and change to snow in the eastern portions continuing through ldaho and Utah into western Wyoming. Showers are probable over southern sections of Califronia and Nevada across Arizona. Fair skies will prevail elsewhere. It will be much colder over the Tennessee and parts of the mid Mississippi Valley. The remainder of the nation will be cold.

Washington date for yesterday: Hightest temperature since midnight yesterday, 43 degrees at 1:50 p.m. Lowest temperature since midnight, 28 degrees at 6:08 a.m. Deficiency of temperature since Jan. 1, 29 degrees. Record high temperature for today, 73 degrees in 1950. Record low temperature for today, 3 degrees in 1963. relative humidity: miximum, 69 percent at 7 a.m.; minimum, 49 percnt at 2 p.m. 24 hour precipitation, none. Excess of precipitation since Jan. 1, 3.52 inches. Highest observed wind since 7 a.m., 10 miles per hour from the south at 2:54 p.m. Peak gust since 7 a.m., 14 miles per hour from the south at 3:21 p.m.

Almanac Data for today: The sun rises 7:21 a.m., sets 5:20 p.m.; The moon rises 3:27 a.m., sets 1:54 p.m. Tides: high 3:47 a.m. and 4:01 p.m., low 10:30 a.m. and 11:45 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 1/4), Solomons Island (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 16 for pollutant, sulfur dioxide. Index values between 0 and 24 indicate good air quality. When the index exceeds 100 the air is considered very unheatlthy 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 about the same.

The National Weather Service forecasts the Potomac River Stage at Little Falls should recede to near 7.0 feet today.

Local Temp., Humidity (TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnite(COLUMN)35(COLUMN)54 1 a.m.(COLUMN)34(COLUMN)56 2 a.m.(COLUMN)33(COLUMN)59 3 a.m.(COLUMN)32(COLUMN)61 4 a.m.(COLUMN)31(COLUMN)66 5 a.m.(COLUMN)34(COLUMN)66 6 a.m.(COLUMN)29(COLUMN)69 7 a.m.(COLUMN)30(COLUMN)69 8 a.m.(COLUMN)35(COLUMN)61 9 a.m.(COLUMN)35(COLUMN)61 10 a.m.(COLUMN)37(COLUMN)54 11 a.m.(COLUMN)39(COLUMN)55 12 noon(COLUMN)40(COLUMN)55 1 p.m.(COLUMN)42(COLUMN)51 2 p.m.(COLUMN)43(COLUMN)49 3 p.m.(COLUMN)41(COLUMN)53 4 p.m.(COLUMN)41(COLUMN)53 5 pm.(COLUMN)39(COLUMN)62 6 p.m.(COLUMN)39(COLUMN)62 7 p.m.(COLUMN)38(COLUMN)64 8 p.m.(COLUMN)37(COLUMN)67 9 p.m.(COLUMN)37(COLUMN)73 10 p.m.(COLUMN)37(COLUMN)70 11 p.m.(COLUMN)37(COLUMN)70(END TABLE)

Temperatures ending 8 p.m. (EST) yesterday: (TABLE) City(COLUMN)L.(COLUMN)H. Albany(COLUMN)27(COLUMN)37 Albuquerque(COLUMN)18(COLUMN)37 Amarillo(COLUMN)15(COLUMN)29 Anchoraqe(COLUMN)24(COLUMN)28 Asheville(COLUMN)20(COLUMN)44 Atlanta(COLUMN)28(COLUMN)49 Atlantic City(COLUMN)26(COLUMN)37 Austin(COLUMN)42(COLUMN)53 Baltimore(COLUMN)23(COLUMN)42 Billings(COLUMN)10(COLUMN)17 Birmingham(COLUMN)33(COLUMN)54 Bismarck(COLUMN)-10(COLUMN)04 Boise(COLUMN)03(COLUMN)28 Boston(COLUMN)31(COLUMN)40 Brownsville(COLUMN)58(COLUMN)76 Buffalo(COLUMN)26(COLUMN)31 Burlington, Vt.(COLUMN)07(COLUMN)26 Casper(COLUMN)00(COLUMN)16 Charleston, S.C.(COLUMN)38(COLUMN)53 Charleston, W.V.(COLUMN)19(COLUMN)45 Charlotte(COLUMN)27(COLUMN)48 Cheyenne(COLUMN)02(COLUMN)24 Chicago(COLUMN)23(COLUMN)32 Cincinnati(COLUMN)20(COLUMN)42 Cleveland(COLUMN)22(COLUMN)38 Columbia, S.C.(COLUMN)28(COLUMN)56 Columbus(COLUMN)20(COLUMN)39 Dallas-Ft. Worth(COLUMN)30(COLUMN)38 Dayton(COLUMN)23(COLUMN)39 Denver(COLUMN)-02(COLUMN)25 Des Moines(COLUMN)09(COLUMN)20 Detroit(COLUMN)20(COLUMN)32 Duluth(COLUMN)01(COLUMN)11 El Paso(COLUMN)30(COLUMN)49 Evansville(COLUMN)24(COLUMN)40 Fairbanks(COLUMN)-12(COLUMN)-01 Fargo(COLUMN)-16(COLUMN)-05 Flagstaff(COLUMN)-07(COLUMN)38 Great Falls(COLUMN)14(COLUMN)26 Hartford(COLUMN)29(COLUMN)39 Helena(COLUMN)05(COLUMN)30 Honolulu(COLUMN)66(COLUMN)72 Houston(COLUMN)43(COLUMN)62 Indianapolis(COLUMN)24(COLUMN)39 Jackson(COLUMN)36(COLUMN)54 Jacksonville(COLUMN)30(COLUMN)63 Juneau(COLUMN)29(COLUMN)35 Kansas City(COLUMN)14(COLUMN)21 Las Vegas(COLUMN)29(COLUMN)52 Little Rock(COLUMN)29(COLUMN)45 Los Angeles(COLUMN)43(COLUMN)64 Louisville(COLUMN)23(COLUMN)46 Memphis(COLUMN)35(COLUMN)47 Miami Beach(COLUMN)58(COLUMN)71 Midland(COLUMN)26(COLUMN)42 Mitwaukee(COLUMN)25(COLUMN)29 Mpls.-St. Paul(COLUMN)11(COLUMN)15 Nashville(COLUMN)22(COLUMN)44 New Orleans(COLUMN)44(COLUMN)63 New York(COLUMN)32(COLUMN)43 Norfolk(COLUMN)33(COLUMN)48 North Platte(COLUMN)01(COLUMN)13 Oklahoma City(COLUMN)20(COLUMN)27 Omaha(COLUMN)04(COLUMN)10 Orlando(COLUMN)41(COLUMN)70 Philadelphia(COLUMN)22(COLUMN)41 Phoenix(COLUMN)37(COLUMN)59 Pittsburgh(COLUMN)19(COLUMN)37 Portland, Me.(COLUMN)20(COLUMN)34 Portland, Ore.(COLUMN)29(COLUMN)39 Providence(COLUMN)26(COLUMN)40 Raleigh(COLUMN)23(COLUMN)51 Rapid City(COLUMN)-05(COLUMN)13 Reno(COLUMN)17(COLUMN)44 Richmond(COLUMN)24(COLUMN)46 St. Louis(COLUMN)27(COLUMN)33 St. Prbg.-Tampa(COLUMN)41(COLUMN)69 Salt Lake City(COLUMN)06(COLUMN)28 San Antonio(COLUMN)46(COLUMN)54 San Diego(COLUMN)49(COLUMN)64 San Francisco(COLUMN)45(COLUMN)51 San Juan(COLUMN)72(COLUMN)85 St. Ste. Marie(COLUMN)14(COLUMN)29 Seattle(COLUMN)34(COLUMN)46 Shreveport(COLUMN)42(COLUMN)55 Sioux Falls(COLUMN)-03(COLUMN)06 Spokane(COLUMN)-01(COLUMN)20 Syracuse(COLUMN)28(COLUMN)35 Topeka(COLUMN)17(COLUMN)21 Tucson(COLUMN)35(COLUMN)56 Tulsa(COLUMN)22(COLUMN)32 Washington(COLUMN)28(COLUMN)43 Wichita(COLUMN)17(COLUMN)22(END TABLE)

Temperatures Abroad Yesterday (TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)Cloudy(COLUMN)1 p.m.(COLUMN)34 Amsterdam(COLUMN)sleet(COLUMN)1 p.m.(COLUMN)27 Ankara(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)30 Athens(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)54 Aucklaand(COLUMN)clear(COLUMN)midnight(COLUMN)64 Berlin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)27 Birmiingham(COLUMN)snow(COLUMN)1 p.m.(COLUMN)30 Bonn(COLUMN)could(COLUMN)1 p.m.(COLUMN)34 Brussels(COLUMN)rain(COLUMN)1 p.m.(COLUMN)34 Casablanca(COLUMN)cldy(COLUMN)noon(COLUMN)64 Copenhagen(COLUMN)snow(COLUMN)1 p.m.(COLUMN)27 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)36 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Hong Kong(COLUMN)clear(COLUMN)8 p.m.(COLUMN)64 Jerusalem(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)43 Lisbon(COLUMN)cloudy(COLUMN)noon(COLUMN)48 London(COLUMN)snow(COLUMN)1 p.m.(COLUMN)30 Mardrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)50 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)63 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)75 Moscow(COLUMN)snow(COLUMN)3 p.m.(COLUMN)07 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)68 Nice(COLUMN)raiin(COLUMN)1 p.m.(COLUMN)50 Oslo(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)21 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)43 Peking(COLUMN)smoke(COLUMN)8 p.m.(COLUMN)30 Rome(COLUMN)rain(COLUMN)1 p.m.(COLUMN)55 Saigon(COLUMN)pt. cldy.(COLUMN)8 p.m.(COLUMN)84 Sofia(COLUMN)pt. cldy.(COLUMN)2 p.m.(COLUMN)34 Stockholm(COLUMN)snow(COLUMN)1 p.m.(COLUMN)21 Tokyo(COLUMN)cloudy(COLUMN)9 p.m.(COLUMN)46 Tunis(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)63 Vienna(COLUMN)snow(COLUMN)1 p.m.(COLUMN)30 Warsaw(COLUMN)clear(COLUMN)1 p.m.(COLUMN)21(END TABLE)

Temperatures (Western Hemisphere) (TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)pt. cldy.(COLUMN)87(COLUMN)70 Barbados(COLUMN)fair(COLUMN)84(COLUMN)73 Bermuda(COLUMN)fair(COLUMN)76(COLUMN)67 Bogota(COLUMN)pt. cldy.(COLUMN)68(COLUMN)42 Calgary(COLUMN)clear(COLUMN)19(COLUMN)10 Culiacan(COLUMN)cloudy(COLUMN)68(COLUMN)55 Edmonton(COLUMN)cloudy(COLUMN)19(COLUMN)10 Havana(COLUMN)pt. cldy.(COLUMN)70(COLUMN)62 Kingston(COLUMN)fair(COLUMN)79(COLUMN)73 Montego Bay(COLUMN)pt. cldy.(COLUMN)82(COLUMN)68 Mexico City(COLUMN)fair(COLUMN)70(COLUMN)41 Monterrey(COLUMN)sunny(COLUMN)66(COLUMN)55 Montreal(COLUMN)clear(COLUMN)23(COLUMN)10 Nassau(COLUMN)pt. cldy.(COLUMN)73(COLUMN)53 Ottawa(COLUMN)clear(COLUMN)23(COLUMN)07 Regina(COLUMN)snow(COLUMN)12(COLUMN)-20 St. Kitts(COLUMN)fair(COLUMN)85(COLUMN)73 Toronto(COLUMN)cloudy(COLUMN)28(COLUMN)27 Vancouver(COLUMN)cloudy(COLUMN)37(COLUMN)34 Veracruz(COLUMN)pt. cldy.(COLUMN)75(COLUMN)61 Winnipeg(COLUMN)snow(COLUMN)07(COLUMN)-17(END TABLE)