Washington: Today - Rain, high in low to mid 60s, low in low to mid 40s. Chance of rain is 90 per cent today, 70 per cent tonight. Monday - Mostly cloudy, high near 60.

Maryland and Virginia: Today - Rain, high in 60s, low in 40s. Monday - Mostly cloudy, high in 50s.

lower Potomac and Chesapeake Bay: Today - Rain with southerly winds 15 to 25 knots through tonight. Visibility should be 5 miles or more, decreasing to 2 miles or less in heavy precipitation.

Extended Area Outlook: For Tuesday through Thursday - Fair Tuesday and Thursday with chance of precipitation Wednesday. Highs should average in 40s, losw in 20s. Washington's normal temperature range is from 50 to 31.

West Virginia: Today - Rain, high mid 50s to 60s, low in 30s. Rain is likely today, ending by tonight. Monday - Cloudy with chance of snow flurries, high in 30s to near 40.

The National Weather Forecast for Today - Showers or thunderstorms will be scattered over the Atlantic Coast states and through the Appalachians into the Tennesee and Ohio Valleys. Snow or snow flurries will occur over the Upper Great Lakes into Indiana and southern Illinois. THere will be some scattered to widely scattered snow in Nebraska, South Dakota and western North Dakota westward with rain showers in western Oregon and western Washington.It will be colder overt he lower Mississippi Valley and central Gulf Coast states into Kentucky and Indiana. Some warming will occur in the southern Rockies and southern plateau with only minor changes elsewhere.

ALMANAC DATE for Feb. 27 - Sun rises 6:44 a.m., sets 5:59 p.m., moon rises 12:21 p.m., sets 2:08 a.m. Tides: High 2:20 a.m. and 2:49 p.m., low 9:24 a.m. and 10:05 p.m. High and low tides at the following points can be obtained by subtracting the hours indicated from the tides above. Annapolis (3 1/4); Bloody Point Lighthouse (4 1/2); Deale, Md. (4 1/2); Colonial Beach (6); Norfolk (1 1/2); Virginia Beach (1); Solomon's 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 to 10 a.m. period was 18 for the pollutant, carbon monoxide. Index values between 0 and 24 indicate good air quality. When the index exceeds 100 the air becomes hazardous and perosns with lung, heart and eye problems should restrict their activity. The forecast for today indicatest the air quality will remain about the same.

The National Weather Service forecasts that the Potomac River stage at Little Falls will rise to near 3.9 feet today. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid.(COLUMN)54(COLUMN)43 1 a.m.(COLUMN)53(COLUMN)45 2 a.m.(COLUMN)52(COLUMN)52 3 a.m.(COLUMN)45(COLUMN)71 4 a.m.(COLUMN)45(COLUMN)73 5 a.m.(COLUMN)45(COLUMN)73 6 a.m.(COLUMN)43(COLUMN)82 7 a.m.(COLUMN)40(COLUMN)89 8 a.m.(COLUMN)45(COLUMN)76 9 a.m.(COLUMN)50(COLUMN)63 10 a.m.(COLUMN)51(COLUMN)63 11 a.m.(COLUMN)57(COLUMN)44 12 noon(COLUMN)63(COLUMN)17 1 p.m.(COLUMN)67(COLUMN)29 2 p.m.(COLUMN)69(COLUMN)52 3 p.m.(COLUMN)69(COLUMN)27 4 p.m.(COLUMN)64(COLUMN)35 5 p.m.(COLUMN)62(COLUMN)41(END TABLE) Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)42(COLUMN)36 Albuquerque(COLUMN)49(COLUMN)25 Amarillo(COLUMN)49(COLUMN)31 Anchorage(COLUMN)37(COLUMN)25 Asheville(COLUMN)73(COLUMN)41 Atlanta(COLUMN)75(COLUMN)44 Atlantic City(COLUMN)63(COLUMN)44 Austin(COLUMN)14(COLUMN)51 Baltimore(COLUMN)68(COLUMN)43 Billings(COLUMN)42(COLUMN)25 Birmingham(COLUMN)80(COLUMN)60 Bismarck(COLUMN)30(COLUMN)19 Boise(COLUMN)43(COLUMN)32 Boston(COLUMN)48(COLUMN)40 Brownsville(COLUMN)86(COLUMN)69 Buffalo(COLUMN)38(COLUMN)32 Burlington, Vt.(COLUMN)38(COLUMN)31 Casper(COLUMN)31(COLUMN)06 Charleston, S.C.(COLUMN)78(COLUMN)52 Charleston, W.V.(COLUMN)60(COLUMN)38 Charlotte, N.C.(COLUMN)73(COLUMN)53 Cheyenne(COLUMN)34(COLUMN)08 Chicago(COLUMN)40(COLUMN)28 Cincinnati(COLUMN)54(COLUMN)39 Cleveland(COLUMN)46(COLUMN)29 Columbia, S.C.(COLUMN)80(COLUMN)45 Columbus, Oh.(COLUMN)53(COLUMN)33 Dal.-Ft. Worth(COLUMN)77(COLUMN)45 Dayton(COLUMN)50(COLUMN)23 Denver(COLUMN)30(COLUMN)16 Des Moines(COLUMN)46(COLUMN)28 Detroit(COLUMN)41(COLUMN)32 Duluth(COLUMN)21(COLUMN)16 El Paso(COLUMN)61(COLUMN)31 Fargo(COLUMN)24(COLUMN)17 Flagstaff(COLUMN)28(COLUMN)-03 Great Falls(COLUMN)39(COLUMN)31 Hartford(COLUMN)50(COLUMN)32 Helena(COLUMN)37(COLUMN)27 Honolulu(COLUMN)85(COLUMN)73 Houston(COLUMN)80(COLUMN)68 Indianapolls(COLUMN)49(COLUMN)37 Jackson, Miss(COLUMN)84(COLUMN)66 Jacksonville(COLUMN)81(COLUMN)40 Juneau(COLUMN)41(COLUMN)35 Kansas City(COLUMN)45(COLUMN)33 Las Vegas(COLUMN)57(COLUMN)32 Little Rock(COLUMN)80(COLUMN)52 Los Angeles(COLUMN)68(COLUMN)47 Louisville(COLUMN)65(COLUMN)44 Memphis(COLUMN)76(COLUMN)63 Miami Beach(COLUMN)73(COLUMN)71 Midland(COLUMN)82(COLUMN)36 Milwaukee(COLUMN)36(COLUMN)28 Mpls. St. Paul(COLUMN)29(COLUMN)16 Nashville(COLUMN)73(COLUMN)47 New Orleans(COLUMN)79(COLUMN)67 New York(COLUMN)58(COLUMN)42 Norfolk(COLUMN)72(COLUMN)53 North Platte(COLUMN)40(COLUMN)12 Oklahoma City(COLUMN)62(COLUMN)35 Omaha(COLUMN)48(COLUMN)30 Orlando(COLUMN)80(COLUMN)46 Philadelphia(COLUMN)63(COLUMN)32 Phoenix(COLUMN)65(COLUMN)37 Pittsburgh(COLUMN)50(COLUMN)34 Portland, Me.(COLUMN)37(COLUMN)34 Portland, Ore.(COLUMN)44(COLUMN)38 Providence(COLUMN)51(COLUMN)35 Raleigh(COLUMN)72(COLUMN)51 Rapid City(COLUMN)41(COLUMN)21 Reno(COLUMN)46(COLUMN)26 Richmond(COLUMN)72(COLUMN)40 St. Louis(COLUMN)54(COLUMN)32 St. Prbg-T'mpa(COLUMN)81(COLUMN)55 Salt Lake City(COLUMN)39(COLUMN)27 San Antonio(COLUMN)82(COLUMN)50 San Diego(COLUMN)64(COLUMN)51 San Francisco(COLUMN)60(COLUMN)50 San Juan, P.R.(COLUMN)87(COLUMN)73 St. Ste. Marie(COLUMN)32(COLUMN)17 Seattle(COLUMN)45(COLUMN)39 Shreveport(COLUMN)89(COLUMN)66 Sioux Falls(COLUMN)33(COLUMN)29 Spokane(COLUMN)38(COLUMN)24 Syracuse(COLUMN)40(COLUMN)33 Tulsa(COLUMN)61(COLUMN)38 Washington(COLUMN)72(COLUMN)40 Wichita(COLUMN)54(COLUMN)35(END TABLE)(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Amsterdam(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)39 Ankara(COLUMN)pt. cldy(COLUMN)3 p.m.(COLUMN)64 Athens(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)64 Auckland(COLUMN)clear(COLUMN)midnight(COLUMN)59 Berlin(COLUMN)snow(COLUMN)1 p.m.(COLUMN)34 Birmingham(COLUMN)clear(COLUMN)1 p.m.(COLUMN)39 Brussels(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)34 Cairo(COLUMN)clear(COLUMN)2 p.m.(COLUMN)79 Casablanca(COLUMN)clear(COLUMN)noon(COLUMN)66 Copenhagen(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)27 Dublin(COLUMN)(COLUMN)pt. cldy(COLUMN)41 Geneva(COLUMN)rain(COLUMN)1 p.m.(COLUMN)41 Hong Kong(COLUMN)clear(COLUMN)8 p.m.(COLUMN)66 Lisbon(COLUMN)pt. cldy(COLUMN)noon(COLUMN)59 London(COLUMN)clear(COLUMN)1 p.m.(COLUMN)41 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)50 Malte(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Manila(COLUMN)pt. cldy(COLUMN)8 p.m.(COLUMN)81 New Delhi(COLUMN)cloudy(COLUMN)5 p.m.(COLUMN)73 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)59 Oslo(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)21 Paris(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)41 Peking(COLUMN)smoke(COLUMN)8 p.m.(COLUMN)41 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)61 Saign(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)82 Sofia(COLUMN)pt. cldy(COLUMN)2 p.m.(COLUMN)55 Stockholm(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)23 Sychey(COLUMN)clear(COLUMN)10 p.m.(COLUMN)70 Tel Aviv(COLUMN)clear(COLUMN)2 p.m.(COLUMN)75 Tokyo(COLUMN)pt. cldy(COLUMN)9 p.m.(COLUMN)55 Tunis(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)61 Vienna(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)48 Warsaw(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)36(END TABLE)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)Clear(COLUMN)88(COLUMN)72 Barbacos(COLUMN)clear(COLUMN)84(COLUMN)75 Bermuda(COLUMN)cloudy(COLUMN)71(COLUMN)64 Bogota(COLUMN)clear(COLUMN)55(COLUMN)40 Calgary(COLUMN)cloudy(COLUMN)36(COLUMN)23 Culiacan(COLUMN)clear(COLUMN)86(COLUMN)52 Edmonton(COLUMN)clear(COLUMN)37(COLUMN)7 Havana(COLUMN)clear(COLUMN)79(COLUMN)72 Montego Bay(COLUMN)clear(COLUMN)84(COLUMN)72 Mexico City(COLUMN)clear(COLUMN)79(COLUMN)50 Monterrey(COLUMN)pt. cldy(COLUMN)94(COLUMN)59 Montreal(COLUMN)cloudy(COLUMN)32(COLUMN)23 Nassau(COLUMN)clear(COLUMN)79(COLUMN)68 Ottawa(COLUMN)cloudy(COLUMN)34(COLUMN)28 Regina(COLUMN)clear(COLUMN)36(COLUMN)12 St. Kitts(COLUMN)clear(COLUMN)85(COLUMN)74 St. Thomas(COLUMN)pt. cldy(COLUMN)80(COLUMN)74 Toronto(COLUMN)cloudy(COLUMN)36(COLUMN)28 Vancouver(COLUMN)clear(COLUMN)46(COLUMN)30 Veracruz(COLUMN)pt. cldy(COLUMN)90(COLUMN)64 Winnipeg(COLUMN)cloudy(COLUMN)21(COLUMN)7(END TABLE)