Washington: Today - Rain, high in the low 60s, low near 50. The chance of rain is 80 percent through tonight. Wind will be from the east at from 5 to 15 mph. Friday - Rain possible, high in upper 50s.

Maryland and Virginia: Today - Rain, highs from the 50s to the 60s, lows in the 40s. Friday - Rain possible, highs in the 50s.

Lower Potomac and Chesapeake Bay: Today - Rain with visibility of less than 3 miles. Wind will be from the southeast at from 12 to 18 knots today, shifting to from the northeast tonight. Waves in unprotected waters will be from 1 to 2 feet.

Extended Area Forecast for Saturday through Monday: Fair on Saturday, rain on Sunday and on Monday. Highs will be near 70, lows from the low 40s to near 50. Normal Washington temperatures for the period are a high of 74 and a low of 53.

West Virginia: Today - Rain, highs from the mid 50s to the low 60s, lows in the 40s. Friday - Partly cloudy, highs from the mid 50s to the low 60s.

The National Weather Forecast for today - Rain will fall through much of Montana, North Dakota and the central Rockies, with snow likely in higher elevations in the central Rockies. Rain and thunderstorms will extend from the middle Mississippi Valley through the Ohio Valley to the southern and middle Atlantic Coast. Skies will be sunny to mostly sunny from the Pacific Coast into the central and southern Plateau and from the lower Great Lakes into the northern Atlantic Coast. Temperatures will be mild over much of California and from eastern South Carolina across southern Georgia through Florida. Much of the remainder of the nation will be cool.

Almanac Data for today: The sun rises 6:07 a.m., sets 8:03 p.m., moon rises 4:47 a.m., sets 5:47 p.m. Tides: high 7:00 a.m. and 7:27 p.m., low 1:05 a.m. and 1:40 p.m. High and low tides at the following locations may be obtained by substracting the hours indicated from the hours above: Annapolis (3 1/4). Bloody Point Lighthouse (4 1/2), Deale, Md. (4 1/2), Colonial Beach (5 1/4), Norfolk (1), Virginia Beach (3/4), Solomons Island (6 1/4), Point Lookout (7).

Pollen Count: 112 for trees (a reading of more than 7 is considered to be undesirable).

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 2 p.m. to 3 p.m. period was 35 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 forecast for today indicates that the air quality will improve.

The National Weather Service forecasts the Potomac River stage at Little Falls should be near 4 feet today. Local Temps., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnight(COLUMN)58(COLUMN)32 9 a.m.(COLUMN)55(COLUMN)34 1 a.m.(COLUMN)56(COLUMN)34 2 a.m.(COLUMN)53(COLUMN)38 3 a.m.(COLUMN)53(COLUMN)38 4 a.m.(COLUMN)51(COLUMN)41 5 a.m.(COLUMN)51(COLUMN)41 6 a.m.(COLUMN)50(COLUMN)41 7 a.m.(COLUMN)49(COLUMN)42 8 a.m.(COLUMN)52(COLUMN)36 9 a.m.(COLUMN)55(COLUMN)34 10 a.m.(COLUMN)58(COLUMN)32 11 a.m.(COLUMN)61(COLUMN)28 12 noon(COLUMN)62(COLUMN)29 1 p.m.(COLUMN)64(COLUMN)29 2 p.m.(COLUMN)66(COLUMN)28 3 p.m.(COLUMN)69(COLUMN)23 4 p.m.(COLUMN)68(COLUMN)24 5 p.m.(COLUMN)70(COLUMN)23 6 p.m.(COLUMN)69(COLUMN)22 7 p.m.(COLUMN)67(COLUMN)23(END TABLE) Temperatures ending 8 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)58(COLUMN)37 Albuquerque(COLUMN)43(COLUMN)34 Amarillo(COLUMN)41(COLUMN)34 Anchorage(COLUMN)58(COLUMN)46 Asheville(COLUMN)66(COLUMN)34 Atlanta(COLUMN)72(COLUMN)51 Atlantic City(COLUMN)61(COLUMN)44 Austin(COLUMN)76(COLUMN)53 Baltimore(COLUMN)68(COLUMN)42 Billings(COLUMN)65(COLUMN)47 Birmingham(COLUMN)70(COLUMN)55 Bismarck(COLUMN)64(COLUMN)40 Boise(COLUMN)66(COLUMN)41 Boston(COLUMN)63(COLUMN)46 Brownsville(COLUMN)92(COLUMN)69 Buffalo(COLUMN)47(COLUMN)35 Burlington(COLUMN)49(COLUMN)37 Casper(COLUMN)60(COLUMN)35 Charleston, S.C.(COLUMN)62(COLUMN)55 Charl'ton, W.Va.(COLUMN)61(COLUMN)35 Charlotte(COLUMN)66(COLUMN)44 Cheyenne(COLUMN)40(COLUMN)34 Chicago(COLUMN)53(COLUMN)36 Cincinnati(COLUMN)62(COLUMN)33 Cleveland(COLUMN)55(COLUMN)30 Columbia, S.C.(COLUMN)68(COLUMN)43 Columbus, Ohio(COLUMN)59(COLUMN)30 Dal.-Ft. Worth(COLUMN)64(COLUMN)45 Dayton(COLUMN)59(COLUMN)34 Denver(COLUMN)51(COLUMN)37 Des Moines(COLUMN)63(COLUMN)39 Detroit(COLUMN)59(COLUMN)28 Duluth(COLUMN)62(COLUMN)35 El Paso(COLUMN)65(COLUMN)42 Fairbanks(COLUMN)55(COLUMN)41 Fargo(COLUMN)68(COLUMN)43 Flagstaff(COLUMN)51(COLUMN)36 Great Falls(COLUMN)64(COLUMN)43 Hartford(COLUMN)59(COLUMN)39 Helena(COLUMN)65(COLUMN)50 Honolulu(COLUMN)89(COLUMN)73 Houston(COLUMN)76(COLUMN)58 Indianapolis(COLUMN)63(COLUMN)38 Jackson, Miss(COLUMN)70(COLUMN)57 Jacksonville(COLUMN)83(COLUMN)67 Juneau(COLUMN)43(COLUMN)39 Kansas City(COLUMN)60(COLUMN)44 Las Vegas(COLUMN)80(COLUMN)56 Little Rock(COLUMN)59(COLUMN)45 Los Angeles(COLUMN)72(COLUMN)56 Louisville(COLUMN)64(COLUMN)40 Memphis(COLUMN)65(COLUMN)50 Miami Beach(COLUMN)83(COLUMN)76 Midland-Odessa(COLUMN)67(COLUMN)40 Milwaukee(COLUMN)51(COLUMN)30 Mpls. St. Paul(COLUMN)65(COLUMN)38 Nashville(COLUMN)64(COLUMN)41 New Orleans(COLUMN)84(COLUMN)76 New York(COLUMN)65(COLUMN)45 Norfolk(COLUMN)63(COLUMN)49 North Platte(COLUMN)57(COLUMN)29 Oklahoma City(COLUMN)54(COLUMN)44 Omaha(COLUMN)62(COLUMN)41 Orlando(COLUMN)94(COLUMN)69 Philadelphia(COLUMN)67(COLUMN)42 Phoenix(COLUMN)79(COLUMN)59 Pittsburgh(COLUMN)61(COLUMN)32 Portland, Maine(COLUMN)56(COLUMN)39 Portland, Ore.(COLUMN)63(COLUMN)42 Providence(COLUMN)62(COLUMN)39 Raleigh(COLUMN)66(COLUMN)37 Rapid City(COLUMN)61(COLUMN)38 Reno(COLUMN)71(COLUMN)35 Richmond(COLUMN)69(COLUMN)37 St. Louis(COLUMN)61(COLUMN)40 St. Prbg.-Tampa(COLUMN)87(COLUMN)68 Salt Lake City(COLUMN)67(COLUMN)48 San Antonio(COLUMN)81(COLUMN)53 San Diego(COLUMN)68(COLUMN)61 San Francisco(COLUMN)72(COLUMN)53 San Juan(COLUMN)91(COLUMN)76 St. Ste. Marie(COLUMN)48(COLUMN)26 Seattle(COLUMN)61(COLUMN)45 Shreveport(COLUMN)63(COLUMN)49 Sioux Falls(COLUMN)60(COLUMN)32 Spokane(COLUMN)64(COLUMN)33 Syracuse(COLUMN)48(COLUMN)32 Topeka(COLUMN)62(COLUMN)43 Tucson(COLUMN)67(COLUMN)53 Tulsa(COLUMN)60(COLUMN)45 Washington(COLUMN)70(COLUMN)49 Wichita(COLUMN)56(COLUMN)48(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN) 45 Amsterdam(COLUMN)haze(COLUMN) 1 p.m.(COLUMN) 52 Ankara(COLUMN)rain(COLUMN) 3 p.m.(COLUMN) 64 Athens(COLUMN)pt. cldy.(COLUMN) 2 p.m.(COLUMN) 72 Auckland(COLUMN)clear(COLUMN)midnight(COLUMN) 52 Berlin(COLUMN)pt.cldy(COLUMN) 1 p.m.(COLUMN) 57 Birmingham(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN) 50 Brussels(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 57 Cairo(COLUMN)pt.cldy(COLUMN) 2 p.m.(COLUMN) 91 Casablanca(COLUMN)cloudy(COLUMN)noon(COLUMN) 63 Cooenhagen(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 52 Dublin(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN) 52 Geneva(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 57 Hong Kong(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 57 Lisbon(COLUMN)cloudy(COLUMN)noon(COLUMN) 59 London(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 57 Madrid(COLUMN)cloudy(COLUMN) 1 p.m.(COLUMN) 54 Matta(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 70 Manila(COLUMN)pt. cldy.(COLUMN) 8 p.m.(COLUMN) 90 Moscow(COLUMN)cloudy(COLUMN) 3 p.m.(COLUMN) 48 New Delhi(COLUMN)clear(COLUMN) 5 p.m.(COLUMN)106 Nice(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 63 Oslo(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 55 Paris(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN) 64 Peking(COLUMN)clear(COLUMN) 8 p.m.(COLUMN) 64 Rome(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN) 64 Saigon(COLUMN)pt. cldy.(COLUMN) 8 p.m.(COLUMN) 88 Sofia(COLUMN)pt.cldy(COLUMN) 2 p.m.(COLUMN) 64 Stockholm(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 52 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN) 66 Tokyo(COLUMN)cloudy(COLUMN) 9 p.m.(COLUMN) 64 Tunis(COLUMN)clear(COLUMN) 1 p.m.(COLUMN) 77 Vienna(COLUMN)rain(COLUMN) 1 p.m.(COLUMN) 52 Warsaw(COLUMN)pt. cldy.(COLUMN) 1 p.m.(COLUMN) 57(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Acapulco(COLUMN)fair(COLUMN) 86(COLUMN)75 Barbados(COLUMN)clear(COLUMN) 88(COLUMN)79 Bermuda(COLUMN)fair(COLUMN) 84(COLUMN)66 Calgary(COLUMN)cloudy(COLUMN) 63(COLUMN)36 Cullacan(COLUMN)clear(COLUMN) 88(COLUMN)57 Edmonton(COLUMN)cloudy(COLUMN) 63(COLUMN)39 Havana(COLUMN)pt. clyd.(COLUMN) 86(COLUMN)72 Mexico City(COLUMN)haze(COLUMN) 84(COLUMN)57 Monterrey(COLUMN)clear(COLUMN)100(COLUMN)64 Nassau(COLUMN)pt. cldy.(COLUMN) 90(COLUMN)73 Ottawa(COLUMN)clear(COLUMN) 48(COLUMN)32 Regina(COLUMN)pt. cldy.(COLUMN) 72(COLUMN)46 St. Kitts(COLUMN)fair(COLUMN) 91(COLUMN)74 Toronto(COLUMN)lear(COLUMN) 39(COLUMN)28 Vancouver(COLUMN)clear(COLUMN) 57(COLUMN)46 Veracruz(COLUMN)clear(COLUMN)100(COLUMN)75 Winnipeg(COLUMN)pt. cldy.(COLUMN) 75(COLUMN)43(END TABLE)