Washington: Today - Rain during the day, snow tonight, high near 40, low near 30. The chance of precipitation is 40 per cent today and 80 per cent tonight. Wednesday - Snow flurries, high in the low 30s.

Maryland and Virginia, Today - Rain or snow, highs from the 30s to the mid 40s, lows from the 20s to the mid 30s. Wednesday - Rain or snow, highs from the 30s to the mid 40s.

Lower Potomac and Chesapeake Bay: Today - Rain or snow with visibility of less than 3 miles.Wind will be from the southeast at from 10 to 20 knots today, shifting from the northwest tonight. Waves in unprotected waters will be less than 2 feet.

Extended Area Forecast for Thursday through Saturday: Chance of snow flurries on Thursday, fair through the remainder of the period. Highs will be from the mid 30s to the mid 40s, low from the 20s to the 30s. Normal Washington temperatures for the period are a high of 43 and a low of 28.

West Virginia: Today - Rain or snow, highs in the 40s, lows in the 20s. Wednesday - Snow, highs from the mid 20s the mid 30s.

The Nation Yesterday: A low pressure center moving across Missouri spread snow from southern Minnesota into northern Missouri. Behind the storm, cold air spread brisk northwesterly winds through the Plains. Snow also fell in western North Dakota. A deep low pressure center off the middle Atlantic Coast caused light rain along the middle Atlantic Coast. Snow fell over parts of New York, Pennsylvania and southern New England. The weather system in the Midwest moved eastward carrying more precipitation to the East. Temperatures were warm again across the south central states. Most other parts parts of the nation enjoyed clear or partly cloudy skies, except in parts of the northern Rockies and northern Pacific Coast, where it remained overcast. High temperatures in the 20s and 30s were common across the North, with some teems in the extreme northern plains. 60s and 70s prevailed across the South .

The National Weather Forecast for Today - Snow will fall over most of the Great Lakes, the lower Ohio Valley and northern Appalachians into southern New England Rain will fall from the upper Ohio Valley into the central and southern Appalachians and [WORD ILLEGIBLE] the Atlantic Coast from the middle Atlantic states into the Carolinas. Except for some overcast skies along the Oregon Coast, other [WORD ILLEGIBLE) will be sunny. Temperatures will be colder from the lower Ohio Valley to the western and ]WORD ILLEGIBLE[ It will be cold from the upper Mississippi Vall] . It will be cold from the upper Mississippi Valley to the Rockies Seasonable femperatures will prevail west of the Rockies and from the Great Lakes to the Atiantic Coast.

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 2 p.m. to 3 p.m. period was 7 for the pollutant, carbon monoxide. Index values between zero and 24 indicate cood 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 be good.

The National Weather Service forecasts the Potomac River stage at Little Falls should be near 7 feet today.

Washington data at 7 p.m. (EDT) yesterday: Highest temperature since 7 a.m. yesterday, 42 degress at 12:50. p.m. Lowest temperature since midnight, 38 degress at 3:40 a.m. Excess of temperature since Dec. 1, 23 degrees. Excess of temperature since Jan. 1, 564 degrees. Record high temperature for today, 66 degrees in 1889. Record low temperature for today, 2 degrees in 1942. Relative humidity: Maximum, 89 per cent at 9 a.m.; Minimum 89 per cent at 11 a.m. 24-hour precipitation, .75 inches. Excess of precipitation since Dec. 1, 2.22 inches. Deficiency of precipitation since Jan. 1, 2.35 inches. Highest observed wind since 7 a.m., 14 miles per hour from the north, northwest at 9:35 a.m. Peak gust since 7 a.m., 18 miles per hour from the north at 8:58 a.m.

Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid.(COLUMN)41(COLUMN)86 1 a.m.(COLUMN)40(COLUMN)86 2 a.m.(COLUMN)39(COLUMN)86 3 a.m.(COLUMN)39(COLUMN)86 4 a.m.(COLUMN)38(COLUMN)89 5 a.m.(COLUMN)38(COLUMN)89 6 a.m.(COLUMN)33(COLUMN)89 7 a.m.(COLUMN)38(COLUMN)89 8 a.m.(COLUMN)38(COLUMN)89 9 a.m.(COLUMN)40(COLUMN)86 10 a.m.(COLUMN)41(COLUMN)86 11 a.m.(COLUMN)41(COLUMN)79 12 noon(COLUMN)41(COLUMN)89 1 p.m.(COLUMN)42(COLUMN)86 2 p.m.(COLUMN)42(COLUMN)86 3 p.m.(COLUMN)42(COLUMN)82 4 p.m.(COLUMN)42(COLUMN)82 5 p.m.(COLUMN)41(COLUMN)86 6 p.m.(COLUMN)41(COLUMN)86 8 p.m.(COLUMN)40(COLUMN)86 9 p.m.(COLUMN)40(COLUMN)82 10 p.m.(COLUMN)40(COLUMN)82 11 p.m.(COLUMN)40(COLUMN)79(END TABLE)

Temperatures ending 8 p.m. (EST) yesterday:(TABLE) City(COLUMN)L.(COLUMN)L. H. Albany(COLUMN)31(COLUMN)38 Albuquerque(COLUMN)35(COLUMN)44 Amarillo(COLUMN)34(COLUMN)47 Anchorage(COLUMN) 3(COLUMN)10 Asheville(COLUMN)30(COLUMN)57 Atlanta(COLUMN)34(COLUMN)64 Atlantic City(COLUMN)38(COLUMN)44 Austin(COLUMN)50(COLUMN)80 Baltimore(COLUMN)38(COLUMN)41 Billings(COLUMN)17(COLUMN)28 Birmingham(COLUMN)35(COLUMN)66 Bismarck(COLUMN)12(COLUMN)20 Boise(COLUMN)23(COLUMN)37 Boston(COLUMN)36(COLUMN)40 Brownsville(COLUMN)69(COLUMN)84 Buffalo(COLUMN)33(COLUMN)35 BUrlington(COLUMN)23(COLUMN)32 Casper(COLUMN)16(COLUMN)28 Charleston, S.C.(COLUMN)44(COLUMN)64 Charleston, WV(COLUMN)41(COLUMN)53 Charlotte(COLUMN)35(COLUMN)59 Cheyenne(COLUMN)15(COLUMN)28 Chicago(COLUMN)35(COLUMN)40 Cincinnati(COLUMN)27(COLUMN)52 Cleveland(COLUMN)39(COLUMN)44 Columbia, SC(COLUMN)32(COLUMN)64 Columbus(COLUMN)38(COLUMN)49 Dal. Ft. Worth(COLUMN)48(COLUMN)72 Dayton(COLUMN)33(COLUMN)49 Dnever(COLUMN)17(COLUMN)37 Des Moines(COLUMN)27(COLUMN)34 Detroil(COLUMN)35(COLUMN)38 Duluth(COLUMN)25(COLUMN)33 El Paso(COLUMN)35(COLUMN)65 Fairbanks(COLUMN)26(COLUMN)15 Fargo(COLUMN)11(COLUMN)14 Flagstaff(COLUMN)19(COLUMN)37 Great Falls(COLUMN) 9(COLUMN)27 Hartford(COLUMN)33(COLUMN)35LHelena 19(COLUMN)37 Honolulu(COLUMN)69(COLUMN)80 Houston(COLUMN)61(COLUMN)76 Indianapolis(COLUMN)38(COLUMN)50 Jackson, Miss.(COLUMN)45(COLUMN)75 Jacksonville(COLUMN)38(COLUMN)71 Juneau(COLUMN)23(COLUMN)31 Kansas City(COLUMN)29(COLUMN)36 Las Vegas(COLUMN)35(COLUMN)56 Little Rock(COLUMN)U44(COLUMN)70 Los Ageles(COLUMN)44(COLUMN)66 Louisville(COLUMN)31(COLUMN)56 Memphis(COLUMN)48(COLUMN)67 Miami Beach(COLUMN)55(COLUMN)72 Midland-Odessa(COLUMN)44(COLUMN)68 Milwaukee(COLUMN)35(COLUMN)37 Mpls. St. Paul(COLUMN)22(COLUMN)26 Nashville(COLUMN)29(COLUMN)61 New ORleans(COLUMN)53(COLUMN)77 New York(COLUMN)35(COLUMN)42 Norfolk(COLUMN)42(COLUMN)45 north Platte(COLUMN)22(COLUMN)30 JOklahoma City(COLUMN)40(COLUMN)52 Omaha(COLUMN)23(COLUMN)28 Orlando(COLUMN)45(COLUMN)73 Philadelphia(COLUMN)36(COLUMN)39 Phoenix(COLUMN)48(COLUMN)70 Pittsburgh(COLUMN)39(COLUMN)46 Portland, Me.(COLUMN)30(COLUMN)33 Portland, Ore.(COLUMN)31(COLUMN)42 Providence(COLUMN)35(COLUMN)39 Raleigh(COLUMN)34(COLUMN)55 Rapid City(COLUMN)13(COLUMN)31 Reno(COLUMN)15(COLUMN)35 Richmond(COLUMN)39(COLUMN)42 St. Louis(COLUMN)29(COLUMN)52 St. Prbg.-Tampa(COLUMN)43(COLUMN)68 Salt Lake City(COLUMN)17(COLUMN)34 San Antonio(COLUMN)43(COLUMN)81 San Diego(COLUMN)52(COLUMN)69 San Franciso(COLUMN)45(COLUMN)53 San Juan(COLUMN)70(COLUMN)84 St. Ste. Marie(COLUMN)32(COLUMN)35 Seatele(COLUMN)36(COLUMN)45 Shreveport(COLUMN)55(COLUMN)80 Sioux Falls(COLUMN)22(COLUMN)25 Spokane(COLUMN)27(COLUMN)30 Syracuse(COLUMN)30(COLUMN)35 Topeka(COLUMN)30(COLUMN)34 Tucson(COLUMN)42(COLUMN)61 Tulsa(COLUMN)36(COLUMN)50 Washington(COLUMN)38(COLUMN)42 Wichita$31(COLUMN)43(END TABLE)

Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)pt. cldy(COLUMN) 1 p.m.(COLUMN)43 Amsterdam(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)43 Ankara(COLUMN)pt. cldy(COLUMN) 3 p.m.(COLUMN)46 Athens(COLUMN)rain(COLUMN) 2 p.m.(COLUMN)48 Auckland(COLUMN)pt. cldy(COLUMN)midnight(COLUMN)66 Berlin(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)43 Birmingham(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)46 Brussels(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)46 Casablanca(COLUMN)cloudy(COLUMN)noon(COLUMN)66 Copenhagen(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)39 Dublin(COLUMN)pt. cldy(COLUMN) 1 p.m.(COLUMN)46 Ceneva(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)28 HOng Kong(COLUMN)clear(COLUMN) 8 p.m.(COLUMN)68 London(COLUMN)fog(COLUMN) 1 p.m.(COLUMN)37 Madrid(COLUMN)rain(COLUMN) 1 p.m.(COLUMN)46 Malta(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)54 Manila(COLUMN)pt. cldy(COLUMN) 8 p.m.(COLUMN)81 Moscow(COLUMN)cloudy(COLUMN) 3 p.m.(COLUMN)28 New Deihi(COLUMN)clear(COLUMN) 5 p.m.(COLUMN)73 Nice(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)55 Oslo(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN)25 Paris(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)43 Peking(COLUMN)cloudy(COLUMN) 8 p.m.(COLUMN)30 Rome(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)50 Saigon(COLUMN)pt. cldy(COLUMN) 8 p.m.(COLUMN)84 Sofia(COLUMN)cloudy(COLUMN)12 p.m.(COLUMN)30 Stockhoim(COLUMN)pt. cldy(COLUMN) 1 p.m.(COLUMN)34 Sydney(COLUMN)cloudy(COLUMN)10 p.m.(COLUMN)66 KTel Aviv(COLUMN)clear(COLUMN) 2 p.m.(COLUMN)64 Tokio(COLUMN)clear(COLUMN) 9 p.m.(COLUMN)45 TUnisTHpt. cldy(COLUMN) 1 p.m.(COLUMN)57 ViennaTHcloudy(COLUMN) 1 p.m.(COLUMN)28 Warsaw(COLUMN)clear(COLUMN) 1 p.m.(COLUMN)34(END TABLE)

Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)clear(COLUMN)90(COLUMN)70 Barbados(COLUMN)pt. cldy.(COLUMN)85(COLUMN)73 Bermuda(COLUMN)sunny(COLUMN)69(COLUMN)65 CalgaryChcloudy(COLUMN)14(COLUMN) 7 Culiacan(COLUMN)fair(COLUMN)88(COLUMN)57 Edmonton(COLUMN)cloudy(COLUMN)12(COLUMN) 1 Havana(COLUMN)fair(COLUMN)81(COLUMN)68 Kingston(COLUMN)fair(COLUMN)88(COLUMN)73 Montego Bay(COLUMN)pt. cldy.(COLUMN)86(COLUMN)72 Mexico City(COLUMN)fairH73(COLUMN)44 Monterrey(COLUMN)fair(COLUMN)85(COLUMN)50 Montreal(COLUMN)cloudy(COLUMN)34(COLUMN)27 Ottawa(COLUMN)cloudy(COLUMN)28(COLUMN)25 Regina(COLUMN)snow(COLUMN)14(COLUMN) 4 St. Kitts(COLUMN)fiar(COLUMN)85(COLUMN)72 St. Thomas(COLUMN)fairW(COLUMN)85(COLUMN)71 Toronto(COLUMN)rain(COLUMN)36(COLUMN)34 Vancouver(COLUMN)pt. cldy.(COLUMN)39(COLUMN)32 veracruz(COLUMN)pt. cldy.(COLUMN)82(COLUMN)64 Winnipeg(COLUMN)cloudy(COLUMN)36(COLUMN)21(END TABLE)