Washington: Today - partly cloudy high near 40, low near 30. The chance of precipitation is near 10 per cent. Tuesday - Partly cloudy, high in the mid 50s.

Maryland and Virginia: Today - Partly cloudy, highs from the 30s to the mid 40s, low in the 20s. Tuesday - Partly cloudy, highs from the mid 40s to the mid 50s.

Lower Potomac and Chesapeake Bay: Fair with visibility of more than 5 miles. Wind will be from the southeast at less than 18 knots. Waves in unprotected waters will be from 1 to 2 feet.

Extended Area Forecast for Wednesday through Friday: Chance of rain on Wednesday. Partly cloudy on Thursday and Friday. There will be a chance of snow in the mountains on Wednesday. Highs will range from the 30s to the 50s, lows from the teens to the 40s. Normal Washington temperatures fro the period are a high of 45 and a low of 29.

West Virginia: Today - Variably cloudy, highs from the 30s to the low 40s, lows from the upper 20s to the 30s. Tuesday - Partly cloudy, highs from the mid 40s to the low 50s.

The National Weather Forecast for today - Rain will fall from the northern Pacific coast into the northern Rockies. There will be snow over much of the Great Lakes and extreme western New England. Mild temperature are in store for the greater part of the northern and southern plateau, the Rockies, the Plains and the upper and middle Mississippi Valley. Temperatures will be cold over most of the remainder of the country.

Almanac Data for today - Sun rises 7:17 a.m., sets 4:47 p.m.; moon rises :53 a.m., set 7:23 p.m.; Tides: high 8:58 a.m. and 9:25 p.m., low 3:26 a.m. and 3:38 p.m. High and low tides at the following locations may be obtained by subtracting the hours indicated from the tides 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 Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 9 a.m. to 10 a.m. period was 10 for the pollutant, photochemical oxidants. Index values between zero and 24 indicate good air quality. When the Index exceeds 100 the air considered very unhealthy and individuals with lung, heat and eye ailments are urged to restrict their activity. The forecast for today Indicates that the air quality will be good.

The National Weather [WORD ILLEGIBLE] forecast the Potomac River stage at Little Falls should be near 4-2 today. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid(COLUMN)20(COLUMN)49 1 a.m.(COLUMN)20(COLUMN)52 2 a.m.(COLUMN)20(COLUMN)54 3 a.m.(COLUMN)21(COLUMN)52 4 a.m.(COLUMN)21(COLUMN)54 5 a.m.(COLUMN)21(COLUMN)54 6 a.m.(COLUMN)22(COLUMN)54 7 a.m.(COLUMN)22(COLUMN)52 6 a.m.(COLUMN)21(COLUMN)54 9 a.m.(COLUMN)23(COLUMN)52 10 a.m.(COLUMN)24(COLUMN)50 11 a.m.(COLUMN)27(COLUMN)42 12 noon(COLUMN)29(COLUMN)39 1 p.m.(COLUMN)30(COLUMN)37 2 p.m.(COLUMN)31(COLUMN)38 3 p.m.(COLUMN)31(COLUMN)38 4 P.m.(COLUMN)29(COLUMN)37 5 p.m.(COLUMN)27(COLUMN)42 6 p.m.(COLUMN)26(COLUMN)44 7 p.m.(COLUMN)25(COLUMN)46(END TABLE) Temperatures ending 8 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)21(COLUMN)0 Albuquerque(COLUMN)53(COLUMN)27 Amarillo(COLUMN)47(COLUMN)29 Anchorage(COLUMN)5(COLUMN)-9 Asheville(COLUMN)34(COLUMN)13 Atlanta(COLUMN)38(COLUMN)29 Atlantic City(COLUMN)26(COLUMN)15 Austin(COLUMN)48(COLUMN)44 Baltimore(COLUMN)30(COLUMN)16 Billirgs(COLUMN)39(COLUMN)32 Birmingham(COLUMN)34(COLUMN)21 Bismarck(COLUMN)6(COLUMN)-1 Boise(COLUMN)46(COLUMN)31 Boston(COLUMN)29(COLUMN)7 Borwnsville(COLUMN)50(COLUMN)45 Buffalo(COLUMN)17(COLUMN)-2 Burlington(COLUMN)17(COLUMN)2 Casper(COLUMN)45(COLUMN)37 Charleston, S.C.(COLUMN)42(COLUMN)32 Charleston, W.V.(COLUMN)14(COLUMN)8 Charlotte(COLUMN)38(COLUMN)21 Cheyenne(COLUMN)46(COLUMN)32 Chicago(COLUMN)9(COLUMN)-2 Cincinnatl(COLUMN)7(COLUMN)-5 Cleveland(COLUMN)11(COLUMN)-1 Columbia, S.C.(COLUMN)42(COLUMN)16 Columbus(COLUMN)9(COLUMN)0 Da.-Ft. Worth(COLUMN)38(COLUMN)35 Dayton(COLUMN)9(COLUMN)-6 Denver(COLUMN)55(COLUMN)34 Des Moines(COLUMN)10(COLUMN)3 Detroit(COLUMN)11(COLUMN)-6 Duluth(COLUMN)-6(COLUMN)-27 El Paso(COLUMN)55(COLUMN)31 Fairbank(COLUMN)-19(COLUMN)-36 Fargo(COLUMN)-3(COLUMN)-7 Flagstaff(COLUMN)60(COLUMN)25 Great Falls(COLUMN)46(COLUMN)42 Hartford(COLUMN)22(COLUMN)4 Helena(COLUMN)20(COLUMN)13 Honolulu(COLUMN)86(COLUMN)70 Houston(COLUMN)51(COLUMN)48 Indianapolis(COLUMN)5(COLUMN)-9 Jackson, Miss.(COLUMN)40(COLUMN)25 Jacksonsville(COLUMN)48(COLUMN)32 Juneau(COLUMN)15(COLUMN)7 Kansas City(COLUMN)24(COLUMN)12 Las Vegas(COLUMN)70(COLUMN)38 Little Rock(COLUMN)31(COLUMN)24 Los Angeles(COLUMN)70(COLUMN)58 Louisville(COLUMN)19(COLUMN)11 Vemphis(COLUMN)33(COLUMN)25 Miami Beach(COLUMN)75(COLUMN)67 Midland Odessa(COLUMN)53(COLUMN)34 Milwaukee(COLUMN)9(COLUMN)1 Mpls-st. Paul(COLUMN)-3(COLUMN)-5 Nashville(COLUMN)26(COLUMN)14 New Orleans(COLUMN)47(COLUMN)35 New York(COLUMN)28(COLUMN)15 Norfolk(COLUMN)33(COLUMN)27 North Platte(COLUMN)26(COLUMN)8 Oklahoma City(COLUMN)36(COLUMN)28 Omaha(COLUMN)15(COLUMN)9 Orando(COLUMN)63(COLUMN)45 Philadelphia(COLUMN)24(COLUMN)12 Phoenix(COLUMN)80(COLUMN)50 Pittsburgh(COLUMN)12(COLUMN)5 Portland, Maine(COLUMN)22(COLUMN)-3 Portland, Ore.(COLUMN)52(COLUMN)43 Providence(COLUMN)25(COLUMN)6 Paleigh(COLUMN)35(COLUMN)13 Rapid City(COLUMN)22(COLUMN)14 Reno(COLUMN)54(COLUMN)29 Richmond(COLUMN)34(COLUMN)13 St. Louis(COLUMN)17(COLUMN)7 St. Prbg.-Tampa(COLUMN)62(COLUMN)41 Salt Lake City(COLUMN)49(COLUMN)25 San Antonio(COLUMN)44(COLUMN)42 San Diego(COLUMN)68(COLUMN)62 San Francisco(COLUMN)60(COLUMN)51 San Juan, P.R.(COLUMN)86(COLUMN)73 St. Ste Marie(COLUMN)8(COLUMN)-7 Seattle(COLUMN)52(COLUMN)50 Shreveport(COLUMN)45(COLUMN)33 Sioux Falls(COLUMN)15(COLUMN)8 Spokane(COLUMN)46(COLUMN)36 Syracuse(COLUMN)17(COLUMN)-7 Topeka(COLUMN)28(COLUMN)13 Tuson(COLUMN)76(COLUMN)50 Tulsa(COLUMN)37(COLUMN)31 Washington(COLUMN)30(COLUMN)19 Wichita(COLUMN)35(COLUMN)20(END TABLE) Temperature Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)rain(COLUMN)1 p.m.(COLUMN)46 Amsterdam(COLUMN)rain(COLUMN)1 p.m.(COLUMN)50 Ankara(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)36 Athens(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)52 Auckland(COLUMN)rain(COLUMN)midnight(COLUMN)59 Berlin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)32 Birmingham(COLUMN)clear(COLUMN)1 p.m.(COLUMN)50 Brussels(COLUMN)rain(COLUMN)1 p.m.(COLUMN)52 Casablanca(COLUMN)pt. cldy(COLUMN)noon(COLUMN)64 Copenhagen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)32 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)50 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)43 Hong Kong(COLUMN)clear(COLUMN)8 p.m.(COLUMN)66 Lisbon(COLUMN)cloudy(COLUMN)noon(COLUMN)54 London(COLUMN)rain(COLUMN)1 p.m.(COLUMN)52 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)55 Malta(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)63 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)79 Moscow(COLUMN)clear(COLUMN)3 p.m.(COLUMN)12 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)79 Nice(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)57 Oslo(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)32 Paris(COLUMN)rain(COLUMN)1 p.m.(COLUMN)32 Peking(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)32 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)61 Saigon(COLUMN)clear(COLUMN)8 p.m.(COLUMN)81 Sofia(COLUMN)snow(COLUMN)2 p.m.(COLUMN)28 Stockholm(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)34 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)64 Tel Aviv(COLUMN)pt. cldy(COLUMN)2 p.m.(COLUMN)73 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)48 Tunis(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)63 Vienna(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)34 Warsaw(COLUMN)clear(COLUMN)1 p.m.(COLUMN)21(END TABLE) Temperature (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapuco(COLUMN)pt. sunny(COLUMN)90(COLUMN)76 Barbados(COLUMN)pt. cldy(COLUMN)84(COLUMN)77 Bermuda(COLUMN)cloudy(COLUMN)75(COLUMN)61 Bogota(COLUMN)pt. cldy(COLUMN)70(COLUMN)47 Calgary(COLUMN)clear(COLUMN)-6(COLUMN)-13 Culiacan(COLUMN)clear(COLUMN)82(COLUMN)52 Edmonton(COLUMN)cloudy(COLUMN)-9(COLUMN)-17 Havana(COLUMN)rain(COLUMN)77(COLUMN)73 Kingston(COLUMN)pt. cldy(COLUMN)88(COLUMN)73 Montego Bay(COLUMN)cloudy(COLUMN)84(COLUMN)72 Mexico City(COLUMN)pt. cldy(COLUMN)66(COLUMN)50 Monetrrey(COLUMN)rain(COLUMN)45(COLUMN)43 Montreal(COLUMN)clear(COLUMN)10(COLUMN)-9 Nassau(COLUMN)pt. cldy(COLUMN)81(COLUMN)72 Ottawa(COLUMN)clear(COLUMN)9(COLUMN)-9 Regina(COLUMN)snow(COLUMN)9(COLUMN)-15 St. Kitts(COLUMN)pt. cldy(COLUMN)85(COLUMN)72 St. Thomas(COLUMN)pt. cldy(COLUMN)86(COLUMN)70 Toronto(COLUMN)snow(COLUMN)16(COLUMN)-17 Vancouver(COLUMN)pt. cldy(COLUMN)52(COLUMN)43 Veracruz(COLUMN)cloudy(COLUMN)73(COLUMN)66 Winnipeg(COLUMN)cloudy(COLUMN)-13(COLUMN)-18(END TABLE)