Washington: Today Cloudy, in upper 60s, low in mid 50s. The chance of rain is 20 per cent today and 60 per cent tonight. Wednesday - Partly cloudy, high in the mid 60s.

Maryland and Virginia: Today - Cloudy, highs from the low 60s to near 70, low from the 40s to the 50s. There is a chance of rain in the mountains. Wednesday - Partly cloudy, highs from the 40s to near 70.

Lower Potomac and Chesapeake Bay: Today - Cloudy, rain likely by tonight. Visibility of more than 5 miles. Wind will be from the South at from 12 to 18 knots tonight. Waves in unprotected waters will be less than 2 feet.

Extended Area Forecast for Thursday through Saturday: Fair through the period. Highs will range from the 50s to the low 60s, lows from 30s in the mountains, to the 40s elsewhere. Normal Washington temperatures for the period are a high 71 and a low of 50.

West Virginia: Today - Rain, highs in the 60s, low from the mid 30s to near 40. Wednesday - Chance or rain, highs from the mid 40s to the mid 50s. There is a chance of snow flurries in the mountains.

The National Weather Forecast for today - There will be rain over much of the great Lakes and the eastern part of the Upper Mississippi valley, the Ohio Valley and from Kentucky through Louisiana, Alabama and western Georgia. Snow is likely in the extreme northern portions of the Great Lakes, and showers are possible over parts of New England and the Gulf Coast. Temperature will be mild along the northern Pacific coast but mostly warm along to southern part. Mild temperatures will also prevail from southern Texas along the Gulf through the eastern Carolinas except for the southern half of Florida, where it will be warm. Most of the remainder of the nation will be cool.

Almanac Data for today - Sun rises 7:13 a.m., sets 6:36 p.m.; moon rises 5:46 a.m., set 5:57 p.m.

Tides: High 7:21 a.m. and 7:50 p.m., low 1:54 a.m. and 2:13 p.m. High and low tides at the following locations can 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); Soloman Island (6 1/2); Point Lookout (7).

Pollen Count: 12 rag weed (note: More than 7 is considered undesirable.

The Council if Government's 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 zeros and 24 inducate good air quality. When the index exceeds 100 line air considered very unhealthy and individuals with lung, and eye ailment 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 be near 3:1 feet today. Local Temp., Humidity(TABLE) TTime(COLUMN)T.(COLUMN)H. L12 mid. 51(COLUMN)59 1 a.m.(COLUMN)52(COLUMN)57 2 a.m.(COLUMN)50(COLUMN)63 3 a.m.(COLUMN)50(COLUMN)61 4 a.m.(COLUMN)50(COLUMN)61 5 a.m.(COLUMN)57(COLUMN)59 6 a.m.(COLUMN)50(COLUMN)61 7 a.m.(COLUMN)51(COLUMN)57 8 a.m.(COLUMN)52(COLUMN)55 9 a.m.(COLUMN)55(COLUMN)53 10 a.m.(COLUMN)54(COLUMN)49 11 a.m.(COLUMN)61(COLUMN)46 12 noon(COLUMN)62(COLUMN)43 1 p.m.(COLUMN)62(COLUMN)43 2 p.m.(COLUMN)63(COLUMN)40 3 p.m.(COLUMN)63(COLUMN)41 4 p.m.(COLUMN)63(COLUMN)41 5 p.m.(COLUMN)63(COLUMN)41 6 p.m.(COLUMN)62(COLUMN)43 7 p.m.(COLUMN)61(COLUMN)43(END TABLE) Temperatures ending 8 a.m. (EDT) Yesterday(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)62(COLUMN)45 Albuquerque(COLUMN)74(COLUMN)46 Amarililo(COLUMN)70(COLUMN)52 Anchorage(COLUMN)54(COLUMN)44 Asheville(COLUMN)65(COLUMN)40 Atlanta(COLUMN)69(COLUMN)46 Atlantic City(COLUMN)69(COLUMN)41 Austin(COLUMN)80(COLUMN)69 Baltimore(COLUMN)72(COLUMN)46 Billings(COLUMN)50(COLUMN)31 Birmingham(COLUMN)69(COLUMN)48 Bismarck(COLUMN)45(COLUMN)34 Boise(COLUMN)61(COLUMN)73 Boston(COLUMN)65(COLUMN)49 Brownsville(COLUMN)91(COLUMN)75 Buffalo(COLUMN)59(COLUMN)47 Burlington(COLUMN)57(COLUMN)44 Casper(COLUMN)61(COLUMN)27 Charleston S.C.(COLUMN)78(COLUMN)55 Charleston, W.Va.(COLUMN)59(COLUMN)44 Charlotte(COLUMN)79(COLUMN)44 Cheyenne(COLUMN)63(COLUMN)27 Chicago(COLUMN)55(COLUMN)39 Cincinnati(COLUMN)57(COLUMN)37 Cleveland(COLUMN)58(COLUMN)40 Columbia, S.C.(COLUMN)81(COLUMN)48 Columbus(COLUMN)56(COLUMN)45 Dal.-Ft. Worth(COLUMN)78(COLUMN)56 Dayton(COLUMN)49(COLUMN)38 Denver(COLUMN)74(COLUMN)40 Des Moines(COLUMN)60(COLUMN)48 Detroit(COLUMN)48(COLUMN)38 Dulum(COLUMN)50(COLUMN)43 El Paso(COLUMN)64(COLUMN)57 Fairbanks(COLUMN)50(COLUMN)38 Fargo(COLUMN)58(COLUMN)38 Flagstaff(COLUMN)69(COLUMN)36 Great Falls (COLUMN)49(COLUMN)21 Hartford(COLUMN)63(COLUMN)43 Helena(COLUMN)49(COLUMN)28 Honolulu(COLUMN)86(COLUMN)75 Houston(COLUMN)76(COLUMN)64 Indianapolis(COLUMN)53(COLUMN)37 Jackson Miss(COLUMN)72(COLUMN)44 Jacksonville(COLUMN)83(COLUMN)55 Juneau(COLUMN)47(COLUMN)40 Kansas City(COLUMN)61(COLUMN)53 Las Vegas(COLUMN)90(COLUMN)61 Little Rock(COLUMN)69(COLUMN)53 Los Angeles(COLUMN)79(COLUMN)64 Lousville(COLUMN)58(COLUMN)40 Memphis(COLUMN)66(COLUMN)54 Miami Beach(COLUMN)87(COLUMN)74 Midland-Odessa(COLUMN)70(COLUMN)57 Milwaukee(COLUMN)55(COLUMN)36 Mpls-St. Paul(COLUMN)55(COLUMN)41 Nashville(COLUMN)64(COLUMN)45 New Orleans(COLUMN)79(COLUMN)59 New York(COLUMN)63(COLUMN)48 Norfolk(COLUMN)71(COLUMN)54 North Platte(COLUMN)73(COLUMN)38 Oklahoma City(COLUMN)73(COLUMN)57 Omaha(COLUMN)63(COLUMN)49 Orlando(COLUMN)90(COLUMN)73 Philadelphia(COLUMN)67(COLUMN)42 Phoenix(COLUMN)92(COLUMN)71 Pittsburgh(COLUMN)56(COLUMN)44 Portland, Maine(COLUMN)59(COLUMN)42 Portland, Ore.(COLUMN)62(COLUMN)39 Providence(COLUMN)65(COLUMN)46 Raleigh(COLUMN)73(COLUMN)38 Rapid City(COLUMN)62(COLUMN)30 Reno(COLUMN)73(COLUMN)33 Richmond(COLUMN)74(COLUMN)36 St. Louis(COLUMN)59(COLUMN)44 St.Prbg-Tampa(COLUMN)87(COLUMN)76 Salt Lake City(COLUMN)68(COLUMN)45 San Antonio(COLUMN)80(COLUMN)69 San Diego(COLUMN)73(COLUMN)67 San Francisco(COLUMN)65(COLUMN)54 San Juan(COLUMN)86(COLUMN)76 St. Ste. Marie(COLUMN)47(COLUMN)33 Seattle(COLUMN)58(COLUMN)43 Shreveport(COLUMN)78(COLUMN)54 Sioux Falls(COLUMN)62(COLUMN)37 Spokane(COLUMN)51(COLUMN)26 Syracuse(COLUMN)63(COLUMN)49 Topeka(COLUMN)67(COLUMN)52 Tucson(COLUMN)82(COLUMN)65 Tulsa(COLUMN)73(COLUMN)41 Washington(COLUMN)72(COLUMN)49 Wichita(COLUMN)75(COLUMN)58(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)City(COLUMN)Weather(COLUMN)Time Tem. Aberdeen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)54 Amsterdam(COLUMN)pt.cldy(COLUMN)1 p.m.(COLUMN)57 Ankara(COLUMN)pt.cldy(COLUMN)3 p.m.(COLUMN)72 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)77 Auckland(COLUMN)clear(COLUMN)midnight(COLUMN)50 Berlin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Birmingham(COLUMN)pt.cldy(COLUMN)1 p.m.(COLUMN)55 Brussels(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)54 Cairo(COLUMN)clear(COLUMN)2 p.m.(COLUMN)93 Casablance(COLUMN)clear(COLUMN)noon(COLUMN)72 Copenhagen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)59 Dublin(COLUMN)pt.cldy(COLUMN)1 p.m.(COLUMN)55 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)55 Hong Kong(COLUMN)pt.cldy(COLUMN)8 p.m.(COLUMN)79 Lisbon(COLUMN)clear(COLUMN)noon(COLUMN)55 London(COLUMN)pt.cldy(COLUMN)1 p.m.(COLUMN)59 Madrid(COLUMN)clear(COLUMN)1 p.m.(COLUMN)63 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)77 Manila(COLUMN)pt.cldy(COLUMN)8 p.m.(COLUMN)82 Moscow(COLUMN)clear(COLUMN)3 p.m.(COLUMN)46 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)91 Nice (KEY OFF) t.cldy (KEYWORD) (COLUMN)1 p.m.(COLUMN)68 Oslo(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)55 Paris(COLUMN)cloudy(COLUMN)1 P.m.(COLUMN)59 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)50 Rome(COLUMN)pt.cldy(COLUMN)1 p.m.(COLUMN)72 Saigon(COLUMN)pt. cldy(COLUMN)8 p.m.(COLUMN)82 Sofia(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)55 Stockholm(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)54 Sydney(COLUMN)cloudy(COLUMN)10 p.m.(COLUMN)64 Tel Aviv(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)82 Tokyo(COLUMN)cloudy(COLUMN)9 p.m.(COLUMN)68 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)79 Vienna(COLUMN)pt.cldy(COLUMN)1 p.m.(COLUMN)64 Warsaw(COLUMN)clear(COLUMN)1 p.m.(COLUMN)66(END TABLE)