Washington: Today and Wednesday - Variable cloudiness, warm and very humid with a chance of an occasional thunderstorm each day, high near 90 low in the 70s. The chance of rain is 30 percent through tonight. Winds will move to the southeast at 15 mph.

Maryland and Virginia: Today and Wednesday - Variable cloudiness, warm and humid with a chance of an occasional thunderstorm each day, high in the 80s to low 90s, low in the 60s to low 70s.

Extended Area Forecast for Thursday through Saturday - Partly cloudy, warm and humid with a chance of thunderstorms each day. Highs will average from the 80s to low 90s, lows from the 60s to low 70s. Normal Washington temperatures are a high of 87 and a low of 68.

Lower Potomac and Chesapeake Bay - Chance of an occasional thunderstorm accompanied by strong winds. Visibility will be 3 to 5 miles diminishing to less than 1 mile in showers. Winds will be from the southwest at 15 knots or less. Waves will average near 2 feet.

Atlantic Ocean Beaches from New Jersey to North Carolina: Today and Wednesday - Variable cloudiness, warm and humid, with a chance of thunderstorms, high in the 80s. Water temperatures will range from the low 70s in the north to near 80 in the south.

West Virginia: Today and Wednesday - Partly cloudy with scattered afternoon or evening thundershowers each day, high in the 70s, low in the 60s.

Almanac Data for today: The sun rises 6:15 a.m., sets 8:12 p.m.; moon rises 10:34 a.m., sets 10:37 p.m. Tides: high 11:29 a.m., and 11:59 p.m., low 6:05 a.m., and 6:16 p.m. High and low tides at the following locations may be obtained by subtracting 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).

The Council of Governments' Air Quality Index for yesterday showed the high reading in the Washington area during the 3 p.m. period was 19 for the pollutant photochemical oxidants. Index values between 0 and 24 indicate good 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 remain about the same.

The National Weather Service forecasts the Potomac River Stage at Little Falls should rise to near 4.4 feet today.

Washington data for yesterday: Highest temperature since midnight yesterday 90 degrees at 2:40 p.m. Lowest temperature since midnight, 77 degrees at 1:01 a.m. Excess of temperature since Aug. 1. 17 degrees. Deficiency of temperature Jan. 1, 124 degrees. Record temperature for today, [WORD ILLEGIBLE] degrees in 1930. Record low temperature for today, 54 degrees in 1903.Relative humidity: maximum 97 percent at 2 a.m.; minimum 64 percent at 3 p.m. 24 hour precipitation, none. Excess of precipitation since Aug. 1, .11 inches. Excess of precipitation since Aug. 1, 2.92 inches. Highest observed wind since 8 a.m. 17 miles per hour from the south at 11:53 a.m. Peak gust since 8 a.m., 25 miles per hour from the south at 4:37 p.m.

Local Temps., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnite (COLUMN)78 (COLUMN)94 1 a.m. (COLUMN)78 (COLUMN)94 2 a.m.(COLUMN)77 (COLUMN)97 3 a.m. (COLUMN)77 (COLUMN)97 4 a.m. (COLUMN)77 (COLUMN)94 5 a.m. (COLUMN)77 (COLUMN)94 6 a.m. (COLUMN)78(COLUMN)94 7 a.m. (COLUMN)77 (COLUMN)97 8 a.m. (COLUMN)78 (COLUMN)94 9 a.m. (COLUMN)79 (COLUMN)91 10 a.m. (COLUMN)82 (COLUMN)82 11 a.m. (COLUMN)83 (COLUMN)80 12 noon (COLUMN)86 (COLUMN)72 1 p.m. (COLUMN)87 (COLUMN)70 2 p.m. (COLUMN)88 (COLUMN)68 3 p.m. (COLUMN)90 (COLUMN)64 4 p.m. (COLUMN)89 (COLUMN)66 5 p.m. (COLUMN)89 (COLUMN)66 6 p.m. (COLUMN)89 (COLUMN)65 7 p.m. (COLUMN)87 (COLUMN)70 Temperatures ending 8 a.m. (EDT) yesterday:(END TABLE)(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)75(COLUMN)71 Albuquerque(COLUMN)93(COLUMN)66 Amarillo(COLUMN)87(COLUMN)65 Anchorage(COLUMN)72(COLUMN)57 Asheville(COLUMN)80(COLUMN)68 Atlanta(COLUMN)84(COLUMN)69 Atlantic City(COLUMN)75(COLUMN)70 Austin(COLUMN)91(COLUMN)76 Baltimore(COLUMN)87(COLUMN)74 Billings(COLUMN)95(COLUMN)62 Birmingham(COLUMN)86(COLUMN)71 Bismarck(COLUMN)92(COLUMN)57 Boise(COLUMN)98(COLUMN)58 Boston(COLUMN)82(COLUMN)70 Brownsville(COLUMN)95(COLUMN)74 Buffalo(COLUMN)79(COLUMN)63 Burlington, Vt.(COLUMN)78(COLUMN)63 Casper(COLUMN)91(COLUMN)56 Charleston, S.C.(COLUMN)86(COLUMN)75 Charleston, W.V.(COLUMN)86(COLUMN)70 Charlotte(COLUMN)82(COLUMN)73 Cheyenne(COLUMN)84(COLUMN)53 Chicago(COLUMN)80(COLUMN)66 Cincinnati(COLUMN)76(COLUMN)68 Cleveland(COLUMN)75(COLUMN)68 Columbia, S.C.(COLUMN)87(COLUMN)73 Columbus(COLUMN)78(COLUMN)70 Dal.-Ft. Worth(COLUMN)90(COLUMN)67 Dayton(COLUMN)73(COLUMN)66 Denver(COLUMN)92(COLUMN)55 Des Moines(COLUMN)84(COLUMN)60 Oklahoma City(COLUMN)90(COLUMN)68 Omaha(COLUMN)84(COLUMN)65 Orlando(COLUMN)89(COLUMN)73 Philadelphia(COLUMN)85(COLUMN)74 Phoenix(COLUMN)108(COLUMN)78 Pittsburgh(COLUMN)78(COLUMN)68 Portland, Me.(COLUMN)81(COLUMN)63 Portland, Ore.(COLUMN)90(COLUMN)63 Providence(COLUMN)79(COLUMN)71 Raleigh(COLUMN)87(COLUMN)72 Rapid City(COLUMN)93(COLUMN)63 Reno(COLUMN)100(COLUMN)39 Richmond(COLUMN)86(COLUMN)72 St. Louis(COLUMN)77(COLUMN)55 St. Prg.-Tampa(COLUMN)91(COLUMN)76 Salt Lake City(COLUMN)99(COLUMN)66 San Antonio(COLUMN)91(COLUMN)71 San Diego(COLUMN)81(COLUMN)71 San Francisco(COLUMN)81(COLUMN)58 San Juan(COLUMN)89(COLUMN)76 St. Ste. Marie(COLUMN)79(COLUMN)53 Seattle(COLUMN)84(COLUMN)62 Shreveport(COLUMN)90(COLUMN)64 Sioux Falls(COLUMN)84(COLUMN)64 Spokane(COLUMN)94(COLUMN)59 Syracuse(COLUMN)80(COLUMN)66 Topeka(COLUMN)84(COLUMN)60 Tucson(COLUMN)97(COLUMN)73 Tulsa(COLUMN)91(COLUMN)67 Washington(COLUMN)87(COLUMN)77 Wichita(COLUMN)90(COLUMN)64(END TABLE)

Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp Aberdeen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)55 Amsterdam(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)63 Ankara(COLUMN)pt. cldy.(COLUMN)3 p.m.(COLUMN)79 Athens(COLUMN)clear(COLUMN)2 P.m.(COLUMN)90 Auckland(COLUMN)pt. cldy(COLUMN)midnight(COLUMN)54 Berlin(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)72 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)63 Bonn(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Brussels(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)63 Cairo(COLUMN)clear(COLUMN)2 p.m.(COLUMN)93 Casablanca(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)70 Copenhagen(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)64 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Hong Kong(COLUMN)rain(COLUMN)8 p.m.(COLUMN)82 Jerusalem(COLUMN)clear(COLUMN)2 p.m.(COLUMN)84 Lisbon(COLUMN)pt. cldy.(COLUMN)noon(COLUMN)72 London(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)66 Madrid(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)70 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)88 Manila(COLUMN)pt. cldy.(COLUMN)8 p.m.(COLUMN)79 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)61 New Delhi(COLUMN)cloudy(COLUMN)5 p.m.(COLUMN)91 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)84 Oslo(COLUMN)clear(COLUMN)1 p.m.(COLUMN)63 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)61 Peking(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)72 Rome(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)86 Saigon(COLUMN)rain(COLUMN)8 p.m.(COLUMN)79 Sofia(COLUMN)clear(COLUMN)2 p.m.(COLUMN)81 Stockholm(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)66 Sydney(COLUMN)pt. cldy.(COLUMN)10 p.m.(COLUMN)66 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)84 Tunis(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)97 Vienna(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)82 Warsaw(COLUMN)pt. cldy.(COLUMN)1 p.m.(COLUMN)77(END TABLE)

Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)pt. cldy.(COLUMN)92(COLUMN)77 Barbados(COLUMN)fair(COLUMN)86(COLUMN)77 Bermuda(COLUMN)fair(COLUMN)86(COLUMN)79 Bogota(COLUMN)pt. cldy(COLUMN)66(COLUMN)50 Calgary(COLUMN)pt. cldy(COLUMN)82(COLUMN)59 Edmonton(COLUMN)rain(COLUMN)34(COLUMN)59 Havana(COLUMN)cloudy(COLUMN)88(COLUMN)73 Kingston(COLUMN)fair(COLUMN)95(COLUMN)75 Montego Bay(COLUMN)fair(COLUMN)86(COLUMN)73 Mexico City(COLUMN)cloudy(COLUMN)70(COLUMN)55 Monterrey(COLUMN)clear(COLUMN)95(COLUMN)73 Montreal(COLUMN)cloudy(COLUMN)81(COLUMN)61 Nassau(COLUMN)fair(COLUMN)85(COLUMN)73 Ottawa(COLUMN)cloudy(COLUMN)82(COLUMN)61 Regina(COLUMN)pt. cldy.(COLUMN)84(COLUMN)54 St. Kitts(COLUMN)pt. cldy.(COLUMN)88(COLUMN)77 St. Thomas(COLUMN)pt. cldy.(COLUMN)88(COLUMN)77 Toronto(COLUMN)cloudy(COLUMN)81(COLUMN)55 Vancouver(COLUMN)clear(COLUMN)81(COLUMN)59 Veracruz(COLUMN)pt. cldy.(COLUMN)88(COLUMN)73 Winnipeg(COLUMN)cloudy(COLUMN)90(COLUMN)52(END TABLE)