Wahington: Today - Partly cloudy high near 40, low near 30. The chance of precipitation will be near 20 percent. Wind will be from the northwest at from 15 to 25 knots. Saturday - Fair, high near 40.

Maryland and Virginla: Today - partly cloudy, highs from near 30 to the 40s lows from the teens to near 20. Saturday - Fair, highs from the 30s to the mid 40s.

Lower Potemac and Chesapeake Bay: Today - Partly cloudy, with visibility of more than 5 miles. Wind will be from the northwest at up to 30 knots. Waves in unprotected waters will be from 2 to 4 feet.

Extended Area Forecast for Sunday throught Tuesday: Fair through the period. Highs will be from the 40s to the 50s, lows from the mid 20s to the lows 30s. Normal Washington temperatures for the period are a High of 56 and a low of 36.

West Virginia: Today - Cloudy with snow flurries. Highs will range from near 30 to near 40, lows from the teens to the mid 20s, Saturday - Partly cloudy , highs in the 40s.

The National Weather Forest for today. Snow will reach from New England through New York and Pennsylvania to the central Appalachians. There will be a chance of snow flurries over Ohlo, and occasional rain from Washington into extreme Northwestern Montana. Elsewhere, sunny or partly cloudy skies will prevall. It will be mild from the West Coast aacross the Rockies through the Great Plains and the lower Mississippi Valley. Seasonable temperatures will cover the nation from the middle and upper Mississippi Valley to the Appalachians, while Appalachians and the Aflantic Coast will be cold.

Almanac Data for today: Sun rises 6:17 a.m., sets 6:17p.m. Moonrises 11:58 a.m., sets 1:38 p.m. Tides: high 1:55 a.m. and 2:17 p.m., low 8:53 a.m. and 9:28 p.m. High and low tides at the following locations may be obtained by subtracting the hours indicated from the hours above: Annapolis (1 1/2); Bloody Point Lighthouse (4 1/2); Deale, Md., (4 1/2); Colonial Beach (6); Norfolk (1 1/2); Virginia Beach (1); Solomons island (6 1/2); Point Lookout (7).

The Council of Government' Air Quality Index for yesterday showed the high reading in the Washington area during the 2 p.m. to 3 p.m. period was 13 for the pollutant, photochenical oxidants. Index values between zero and 24 incicate good air quality. When the index exceeds 100 the air is considered very unhealthy and individuals with lungs, heart and eve aliments are urged to restrict their activity. The forecast for today indicates that the air quality will be good.

The National Weather Service forcast the Potomac River stage at Little Falls should be near 13 feet today. local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid'ht(COLUMN)44(COLUMN)58 1 a.m.(COLUMN)42(COLUMN)58 3 a.m.(COLUMN)44(COLUMN)53 4 a.m. 43(COLUMN)55 5 a.m(COLUMN)43(COLUMN)58 6 a.m.(COLUMN)43(COLUMN)58 7 a.m.(COLUMN)43(COLUMN)58 8 a.m.(COLUMN)43(COLUMN)58 9 a.m.(COLUMN)41(COLUMN)62 10 a.m.(COLUMN)41(COLUMN)64 11 a.m.(COLUMN)40(COLUMN)67 12 noon(COLUMN)39(COLUMN)73 1 p.m.(COLUMN)39(COLUMN)73 2 p.m.(COLUMN)40(COLUMN)73 3 p.m.(COLUMN)39(COLUMN)76 4p.m.(COLUMN)38(COLUMN)82 5 p.m.(COLUMN)38(COLUMN)82 6 p.m.(COLUMN)38(COLUMN)82 7 p.m.(COLUMN)38(COLUMN)82(END TABLE) Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albarry(COLUMN)44(COLUMN)33 Albuquerque(COLUMN)47(COLUMN)23 Amarillo(COLUMN)46(COLUMN)25 Anchorage(COLUMN)41(COLUMN)32 Asheville(COLUMN)70(COLUMN)54 Atlanta(COLUMN)78(COLUMN)54 Altantic City(COLUMN)56(COLUMN)36 Austin(COLUMN)78(COLUMN)43 Baltimore(COLUMN)56(COLUMN)32 Billings(COLUMN)34(COLUMN)23 Birmingham(COLUMN)74(COLUMN)45 Blsmarck(COLUMN)32(COLUMN)13 Bolse(COLUMN)53(COLUMN)34 Boston(COLUMN)49(COLUMN)32 Brownville(COLUMN)86(COLUMN)59 Buffalo(COLUMN)35(COLUMN)25 Burlington(COLUMN)45(COLUMN)19 Casper(COLUMN)35(COLUMN)18 Charleston, S. C.(COLUMN)75(COLUMN)58 Charleston,W. Va.(COLUMN)50(COLUMN)34 Charlotte(COLUMN)76(COLUMN)47 Cheyenne(COLUMN)33(COLUMN)15 Chicago(COLUMN)36(COLUMN)22 Clncinnaff(COLUMN)40(COLUMN)32 Cleveland(COLUMN)42(COLUMN)27 Columbia,S.C.(COLUMN)79(COLUMN)50 Columbus(COLUMN)40(COLUMN)33 Dal.-Ft. Worth(COLUMN)66(COLUMN)38 Dayton(COLUMN)39(COLUMN)32 Denver(COLUMN)42(COLUMN)19 Des Moines(COLUMN)37(COLUMN)24 Defrolt(COLUMN)38(COLUMN)32 Dufuth(COLUMN)30(COLUMN)14 El Paso(COLUMN)64(COLUMN)38 Fai-banks(COLUMN)41(COLUMN)23 Fargo(COLUMN)29(COLUMN)05 Flagstaff(COLUMN)51(COLUMN)20 Great falls(COLUMN)34(COLUMN)20 Hartford(COLUMN)47(COLUMN)32 Helena(COLUMN)42(COLUMN)24 Honglufa(COLUMN)80(COLUMN)70 Houston(COLUMN)82(COLUMN)46 indianapol's(COLUMN)40(COLUMN)33 Jackson, Miss.(COLUMN)79(COLUMN)42 Jacksoonville(COLUMN)77(COLUMN)68 Juneau(COLUMN)44(COLUMN)34 Kansas City(COLUMN)41(COLUMN)28 Las Veges(COLUMN)71(COLUMN)45 Little Rock(COLUMN)52(COLUMN)32 Los Angeles(COLUMN)85(COLUMN)55 Louisville(COLUMN)50(COLUMN)43 Memphis(COLUMN)62(COLUMN)37 Miami Beech(COLUMN)80(COLUMN)73 Midland-Odessa(COLUMN)67(COLUMN)30 Milwaukee(COLUMN)35(COLUMN)25 Mals. St. pual(COLUMN)34(COLUMN)16 Nashiville(COLUMN)58(COLUMN)37 New Orieans(COLUMN)83(COLUMN)53 New York(COLUMN)48(COLUMN)39 Norfolk(COLUMN)69(COLUMN)44 North Piette(COLUMN)44(COLUMN)22 Oklahoma City(COLUMN)50(COLUMN)31 Omaha(COLUMN)37(COLUMN)24 Oriando(COLUMN)87(COLUMN)69 Philadelphia(COLUMN)52(COLUMN)32 Phoenix(COLUMN)76(COLUMN)50 Pittsburgh(COLUMN)49(COLUMN)34 Portland, Malne(COLUMN)49(COLUMN)25 Portland, Ora(COLUMN)59(COLUMN)35 Providence(COLUMN)46(COLUMN)29 Raleigh(COLUMN)73(COLUMN)47 Rapid City(COLUMN)40(COLUMN)21 Reno(COLUMN)64(COLUMN)29 Richmond(COLUMN)70(COLUMN)43 St. Louis(COLUMN)40(COLUMN)31 St. Prbg.-Tempa(COLUMN)81(COLUMN)69 Salt Lake City(COLUMN)48(COLUMN)32 San Antonio(COLUMN)78(COLUMN)44 San Francisco(COLUMN)69(COLUMN)57 San Juan(COLUMN)85(COLUMN)74 St. Ste. Marie(COLUMN)25(COLUMN)57 Seattle(COLUMN)56(COLUMN)43 Shreveport(COLUMN)82(COLUMN)38 Sioux Falls(COLUMN)36(COLUMN)23 Spokane(COLUMN)47(COLUMN)31 Syracuss(COLUMN)38(COLUMN)28 Topeka(COLUMN)44(COLUMN)25 Tucson(COLUMN)71(COLUMN)48 Tulsa(COLUMN)51(COLUMN)27 Washington(COLUMN)58(COLUMN)41 Wrichita(COLUMN)49(COLUMN)27(END TABLE) Temperatures aboroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)rain(COLUMN)1 p.m.(COLUMN)37 Amsterdam(COLUMN)rain(COLUMN)1 p.m!(COLUMN)41 Ankera(COLUMN)pt cidy(COLUMN)3 p.m.(COLUMN)55 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)63 Auckland(COLUMN)pt cidy(COLUMN)midnight(COLUMN)61 Bertin(COLUMN)rain(COLUMN)1 p.m.(COLUMN)50 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)41 Brusseis(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)45 Calro(COLUMN)pt cidy(COLUMN)noon(COLUMN)59 Casablance(COLUMN)pt cidy(COLUMN)39 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)34 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)48 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)64 Lisbon(COLUMN)rain(COLUMN)noon(COLUMN)59 London(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)50 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)54 Manila(COLUMN)pt cidy(COLUMN)8 p.m. 82 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)43 New Delhl(COLUMN)pt cidy(COLUMN)5 p.m.(COLUMN)59 Nice(COLUMN)cloudy(COLUMN)1 p.m!(COLUMN)57 Oslo(COLUMN)snow(COLUMN)1 p.m.(COLUMN)19 Paris(COLUMN)pt cidy(COLUMN)1 p.m.(COLUMN)46 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)45 Rome(COLUMN)pt cidy(COLUMN)1 p.m.(COLUMN)61 Sofia(COLUMN)pt cidy(COLUMN)2 p.m.(COLUMN)50 Stockholm(COLUMN)snow(COLUMN)1 p.m.(COLUMN)71 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)73 Tel Aviv(COLUMN)clear(COLUMN)2 p.m.(COLUMN)66 Tokyo(COLUMN)clear(COLUMN)9a.m.(COLUMN)45 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)64 Vierna(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)55 Warsaw(COLUMN)pt cidy(COLUMN)1 p.m.(COLUMN)52(END TABLE)