Washington: Today - Partly cloudy, rain likely tonight, high in the mid 50s, low in the mid 40s. The chance of rain is 10 percent today and 60 percent tonight. Wind will be from the east. Tuesday - Rain possible, high near 60.

Maryland and Virginia; Today - Partly cloudy, rain likely by tonight, highs in the 50s, lows in the 40s. Tuesday - Rain possible, highs from the 50s to the mid 60s.

Lower Potomac and Chesapeake Bay: Today - Partly cloudy, rain likely by tonight. Wind will be from the northeast at up to 12 knots today shifting to from the southeast at from 10 to 15 knots tonight, visibility will be more than 5 miles except lower in rain. Waves in unprotected waters will be near 1 foot.

Extended Area Forecast for Wednesday through Friday: Fair through Thursday, rain possible on Friday. Highs will from the 40s to the mid 50s, lows from the 20s to the mid 30s. Normal Washington temperatures for the period are a high of 55 and a low of 35.

West Virginia: Toady - Partly sunny, highs from the mid 50s to near 60, lows in the 40s. Tuesday - Rain, highs in the 50s.

The National Weather Forecast for today. Scattered showers and a few thundershowers will reach from Kansas, across the middle Mississippi Valley and spread into the lower Ohio Valley. Rain and snow will stretch from the eastern Great Lakes, the northern Plains and Nebraska. Snow flurries will cover the Rockies and the scattered rain will damper the Intermountain region and the Pacific Northwest. Most of the rest of the country will have partly cloudy skies. Temperatures will be cooler from the western Great Lakes region over most of the Plains and the central Rockies. Except for mild weather over the Gulf Coast, most of the country will have near seasonal temperatures.

Almanac Data for today: Sun rises 6:23 a.m., sets 6:13 p.m., Moon rises 9:04 a.m., sets 11:04 p.m. Tides: high 5:31 a.m. and 6:02 p.m., low 11:08 a.m. and 11:30 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 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 27 for the pollutant, photochemical oxidants, index values between 25 and 49 indicate fair 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 National Weather Service forecasts the Potomac River stage at Little Falls should be near 4.3 feet today.

Highest temperature since 7 a.m. yesterday, 61 degrees at 2:49 p.m. Lowest temperature since midnight, 44 degrees at 6:15 a.m. Deficiency of temperature since Mar. 1, 81 degrees. Deficiency of temperature since Jan. 1, 328 degrees. Record low temperature for toady, 14 degrees in 1896. Relative humidity: Maximum, 74 percent at 9 a.m. Minimum, 41 percent at 3 p.m. Deficiency of precipitation since Mar. 1, .05 inches. xcess of precipitation since Jan. 1, 2.41 inches. Highest observal wind since 7 a.m. 12 miles per hour from the west northwest at 2:53 p.m. Peak gust since 7 a.m., 16 miles per hour from the northwest at 1:45 p.m. Local Temp., Humidity(TABLE) Time(COLUMN)T(COLUMN)H 12 midnite(COLUMN)36(COLUMN)73 1 a.m.(COLUMN)45(COLUMN)59 2 a.m.(COLUMN)47(COLUMN)61 3 a.m.(COLUMN)46(COLUMN)66 4 a.m.(COLUMN)46(COLUMN)42 5(COLUMN)47(COLUMN)66 6 a.m.(COLUMN)45(COLUMN)71 7 a.m.(COLUMN)46(COLUMN)71 8 a.m.(COLUMN)45(COLUMN)73 9 a.m.(COLUMN)48(COLUMN)74 10 a.m.(COLUMN)53(COLUMN)64 11 a.m.(COLUMN)55(COLUMN)55 12 noon(COLUMN)55(COLUMN)49 1 p.m.(COLUMN)57(COLUMN)44 2 p.m.(COLUMN)58(COLUMN)49 3 p.m.(COLUMN)61(COLUMN)41 4 p.m.(COLUMN)61(COLUMN)43 5 p.m.(COLUMN)60(COLUMN)39 6 p.m.(COLUMN)57(COLUMN)45 7 p.m.(COLUMN)53(COLUMN)50(END TABLE) Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H(COLUMN)L Albany(COLUMN)43(COLUMN)34 Alburquerque(COLUMN)62(COLUMN)69 Amarillo(COLUMN)56(COLUMN)31 Anchorage(COLUMN)37(COLUMN)32 Asheville(COLUMN)65(COLUMN)43 Atlanta(COLUMN)67(COLUMN)52 Atlantic City(COLUMN)49(COLUMN)37 Austin(COLUMN)80(COLUMN)44 Baltimore(COLUMN)57(COLUMN)37 Billings(COLUMN)43(COLUMN)24 Birmingham(COLUMN)65(COLUMN)54 Bismarck(COLUMN)41(COLUMN)25 Boise(COLUMN)56(COLUMN)37 Boston(COLUMN)43(COLUMN)37 Brownsville(COLUMN)88(COLUMN)56 Buffalo(COLUMN)37(COLUMN)33 Burlington(COLUMN)40(COLUMN)36 Casper(COLUMN)47(COLUMN)32 Charleston, S.C.(COLUMN)61(COLUMN)50 Charlton, W.Va.(COLUMN)61(COLUMN)38 Charlotte(COLUMN)67(COLUMN)49 Cheyenne(COLUMN)49(COLUMN)25 Chicago(COLUMN)38(COLUMN)28 Cincinnati(COLUMN)48(COLUMN)37 Cleveland(COLUMN)44(COLUMN)35 Columbia, S.C.(COLUMN)60(COLUMN)58 Columbus(COLUMN)46(COLUMN)36 Dal. Ft. Worth(COLUMN)59(COLUMN)35 Dayton(COLUMN)48(COLUMN)35 Denver(COLUMN)56(COLUMN)32 Des Moines(COLUMN)38(COLUMN)30 Detroit(COLUMN)37(COLUMN)35 Duluth(COLUMN)39(COLUMN)26 El Paso(COLUMN)66(COLUMN)38 Fairbanks(COLUMN)38(COLUMN)23 Fargo(COLUMN)32(COLUMN)22 Flagstaff(COLUMN)41(COLUMN)28 Great Falls(COLUMN)43(COLUMN)21 Hartford(COLUMN)51(COLUMN)25 Helena(COLUMN)49(COLUMN)29 Honolulu(COLUMN)88(COLUMN)74 Houston(COLUMN)79(COLUMN)51 Indianapolis(COLUMN)42(COLUMN)36 Jackson, Miss.(COLUMN)69(COLUMN)48 Jacksonville(COLUMN)71(COLUMN)46 Juneau(COLUMN)44(COLUMN)23 Kansas City(COLUMN)44(COLUMN)30 Las Vegas(COLUMN)62(COLUMN)42 Little Rock(COLUMN)55(COLUMN)45 Los Angeles(COLUMN)61(COLUMN)48 Louisville(COLUMN)56(COLUMN)44 Memphis(COLUMN)66(COLUMN)44 Miami Beach(COLUMN)72(COLUMN)62 Midland-Odessa(COLUMN)70(COLUMN)42 Milwaukee(COLUMN)37(COLUMN)27 Mpls.-St. Paul(COLUMN)41(COLUMN)26 Nashville(COLUMN)59(COLUMN)50 New Orleans(COLUMN)71(COLUMN)63 New York(COLUMN)48(COLUMN)39 Norfolk(COLUMN)62(COLUMN)47 North Platte(COLUMN)44(COLUMN)23 Oklahoma City(COLUMN)60(COLUMN)28 Omaha(COLUMN)35(COLUMN)28 Orlando(COLUMN)73(COLUMN)48 Philadelphia(COLUMN)49(COLUMN)36 Phoenix(COLUMN)69(COLUMN)49 Pittsvurgh(COLUMN)48(COLUMN)38 Portland, Maine(COLUMN)42(COLUMN)32 Portland, Ore.(COLUMN)52(COLUMN)41 Providence(COLUMN)44(COLUMN)34 Raleigh(COLUMN)64(COLUMN)48 Rapid City(COLUMN)47(COLUMN)29 Reno(COLUMN)46(COLUMN)33 Richmond(COLUMN)62(COLUMN)47 St. Louis(COLUMN)48(COLUMN)33 St. Prbg.-Tampa(COLUMN)68(COLUMN)47 Salt Lake City(COLUMN)56(COLUMN)39 San Antonio(COLUMN)80(COLUMN)48 San Diego(COLUMN)63(COLUMN)52 San Francisco(COLUMN)57(COLUMN)50 San Juan(COLUMN)91(COLUMN)73 St. Ste. Marie(COLUMN)47(COLUMN)16 Seattle(COLUMN)45(COLUMN)39 Shreveport(COLUMN)75(COLUMN)33 Sioux Falls(COLUMN)34(COLUMN)22 Spokane(COLUMN)43(COLUMN)36 Syracuse(COLUMN)41(COLUMN)30 Topeka(COLUMN)41(COLUMN)27 Tucson(COLUMN)66(COLUMN)48 Tulsa(COLUMN)55(COLUMN)29 Washington(COLUMN)55(COLUMN)44 Wichitta(COLUMN)48(COLUMN)24(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)T Aberdeen(COLUMN)cloudy(COLUMN)1p.m.(COLUMN)50 Amsterdam(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)52 Ankara(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)41 Athens(COLUMN)rain(COLUMN)2 p.m.(COLUMN)59 Berlin(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)46 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)50 Brussels(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)59 Casablanca(COLUMN)cloudy(COLUMN)noon(COLUMN)63 Dublin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)48 Geneva(COLUMN)clear(COLUMN)1 p.m.(COLUMN)54 Hong Kong(COLUMN)rain(COLUMN)8 p.m.(COLUMN)61 Lisbon(COLUMN)pt. cldy(COLUMN)noon(COLUMN)57 London(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)52 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)54 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)61 Manila(COLUMN)pt. cldy(COLUMN)8 p.m.(COLUMN)81 Moscow(COLUMN)snow(COLUMN)3 p.m.(COLUMN)36 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)59 Oslo(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)36 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)52 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)34 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)59 Sofia(COLUMN)snow(COLUMN)2 p.m.(COLUMN)34 Stockholm(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)41 Sydney(COLUMN)pt. cldy(COLUMN)10 p.m.(COLUMN)75 Tel Aviv(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)61 Tokyo(COLUMN)pt. cldy(COLUMN)9 p.m.(COLUMN)41 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)70 Vienna(COLUMN)clear(COLUMN)1 p.m.(COLUMN)46 Warsaw(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37(END TABLE)