Washington: Today - Sunny high in upper 80s, low near 70. Chance of rain near zero today, 10 per cent tonight. Monday - Humid, chance of rain, high near 90.

Maryland: Today - Sunny, highs in 80s, lows in 60s to near 70. Monday - Humid. Chance of rain, high in 80s to near 90.

Virginia: Today - Sunny, highs in 80s, lows in mid 60s to low 70. Monday - Humid. Chance of the rainhighs near 90.

Lower Potomac and Chesapeake Bay: Today - Fair [WORD ILLEGIBLE] visibility through tonight. Winds should be southerly [WORD ILLEGIBLE] to [WORD ILLEGIBLE] knots today; mostly southeast at 8 to 15 knots through tonight.

Extended Area Outlook: For Tuesday through Thursday. Partlycloudy and humid with chance of afternoon and evening showers with highs near 90 and near 70 through the period. Washington normal temperature range for this time of year is from 88 to 69

Atlantic Ocean Beaches from Cape May to Cape Hatteras: Today - Partly cloudy, high in 80s. Monday, Humid with chance of rain, high in 80s. Water temperatures should range from low to mid 70s in north to mid 70s to near 80 in south.

West Virginia: Today - Partly cloudy, highs in 80s, lows in 60s. Chance of rain throughout the state, except the eastern [WORD ILLEGIBLE] tonight. Monday - Humid chance of rain, highs in upper 78s to upper 80s.

The National Weather Forecast for Today - Shower and thunder showers will be scattered between the Mississppi River and the Appalchains and through the south Atlantic Coast states. Widely scattered thundershower are expected westward into central Texas, Southeast Oklahoma and eastern Kansas. The remainder of the nation will be mostly sunny. It will continue be mild in the northern Rockie and northern high Plains with cooling over the rest of the northern and central Plains and the upper and mid Mississippi Valley regions. To the west of the Rockies it will be hot with generally warm weather elsewhere.

ALMANAC DATA FOR July 31 1977. Sun rises 6:08 a.m., sets 8:20 p.m.; moon rises 9:59 p.m. sets 7:09 p.m. Tides: High 9:32 a.m. and 10:03 p.m., low 3:45 a.m. and 4:17. High and low tides at the following locations can be obtained by subtracting the hours indicated from the tides above Annapolis (3 1/4); Bloody Point Lighthouse (4 1/2); Deale, Md. [WORD ILLEGIBLE] Colonial Beach (6); Norfolk (1 1/2); Virginia Beach (1); Solomons Island (6 1/2); Point Lookout (7).

The Council of Government Air Quality index for yesterday showed the high reading in the Washington Area during the noon period was 50 for the pollutnat. Photochemical oxidants [WORDS ILLEGIBLE] between 50 and 99 indicate unhealthy air quality. When index exceeds 100 the air becomes hazardous and persons with lungs, heart and eye problems should restrict their activity.

The National Weather Service forecasts that the Potomac River stage at Little Falls will remain near 2.8 feet through today. Local Temp., Humidty(TABLE) 12 m.n.(COLUMN)75(COLUMN)61 1 a.m.(COLUMN)71(COLUMN)69 2 a.m.(COLUMN)73(COLUMN)71 3 a.m.(COLUMN)81(COLUMN)76 4 a.m.(COLUMN)70(COLUMN)79 5 a.m.(COLUMN)70(COLUMN)79 6 a.m.(COLUMN)69(COLUMN)81 7 a.m.(COLUMN)70(COLUMN)79 8 a.m.(COLUMN)72(COLUMN)76 9 a.m.(COLUMN)73(COLUMN)74 10 a.m.(COLUMN)76(COLUMN)67 11 a.m.(COLUMN)77(COLUMN)67 12 noon(COLUMN)80(COLUMN)69 1 p.m.(COLUMN)80(COLUMN)60 2 p.m.(COLUMN)83(COLUMN)67 3 p.m.(COLUMN)64(COLUMN)55 4 p.m.(COLUMN)64(COLUMN)55 5 p.m.(COLUMN)84(COLUMN)66(END TABLE) Temperatures ending 8 a.m. (EDT) Yesterday(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)80(COLUMN)65 Albuquerque(COLUMN)94(COLUMN)69 Amerillo(COLUMN)92(COLUMN)68 Anchorage(COLUMN)79(COLUMN)61 Asheville(COLUMN)70(COLUMN)61 Atlanta(COLUMN)76(COLUMN)68 Atlantic City(COLUMN)77(COLUMN)68 Austin(COLUMN)96(COLUMN)76 Baltimore(COLUMN)87(COLUMN)69 Billings(COLUMN)96(COLUMN)60 Birmingham(COLUMN)84(COLUMN)75 Bismarck(COLUMN)94(COLUMN)65 Boise(COLUMN)82(COLUMN)52 Boston(COLUMN)78(COLUMN)63 Brownsville(COLUMN)95(COLUMN)77 Buffalo(COLUMN)82(COLUMN)66 Burlington(COLUMN)81(COLUMN)65 Casper(COLUMN)95(COLUMN)68 Charleston, S.C.(COLUMN)85(COLUMN)74 Charlton, W.Va.(COLUMN)76(COLUMN)69 Charlotte, N.C.(COLUMN)76(COLUMN)70 Cheyenne(COLUMN)88(COLUMN)56 Chicago(COLUMN)82(COLUMN)63 Cincinnati(COLUMN)74(COLUMN)66 Cleveland(COLUMN)80(COLUMN)62 Columbia, S.C.(COLUMN)78(COLUMN)71 Columbus, Ohio(COLUMN)75(COLUMN)64 Dal.-Ft. Worth(COLUMN)97(COLUMN)74 Dayton(COLUMN)77(COLUMN)62 Denver(COLUMN)89(COLUMN)60 Des Moines(COLUMN)95(COLUMN)69 Detroit(COLUMN)83(COLUMN)61 Dulbin(COLUMN)73(COLUMN)54 [WORD ILLEGIBLE](COLUMN)94(COLUMN)69 [WORD ILLEGIBLE]$94(COLUMN)69 [WORD ILLEGIBLE](COLUMN)85(COLUMN)60 [WORD ILLEGIBLE](COLUMN)82(COLUMN)66 Flagstaff(COLUMN)86(COLUMN)66 Great Falls(COLUMN)80(COLUMN)53 Hartford(COLUMN)83(COLUMN)63 Holome(COLUMN)81(COLUMN)67 Honolulu(COLUMN)88(COLUMN)78 Houston(COLUMN)94(COLUMN)80 Indianapolis(COLUMN)85(COLUMN)66 Jackson, Miss.(COLUMN)92(COLUMN)72 Jacksonville(COLUMN)97(COLUMN)71 [WORD ILLEGIBLE](COLUMN)62(COLUMN)54 Kansas City(COLUMN)91(COLUMN)70 Las Vagas(COLUMN)110(COLUMN)82 Little Rock(COLUMN)91(COLUMN)69 Los Angeles(COLUMN)98(COLUMN)71 Louisville(COLUMN)83(COLUMN)69 Memphis(COLUMN)90(COLUMN)74 Miame Beach(COLUMN)85(COLUMN)81 Midland(COLUMN)96(COLUMN)69 Milwaukee(COLUMN)80(COLUMN)69 Mpls.-St. Paul(COLUMN)85(COLUMN)65 Nasville(COLUMN)87(COLUMN)70 New Orleans(COLUMN)91(COLUMN)78 New York(COLUMN)82(COLUMN)67 Norfolk(COLUMN)85(COLUMN)71 North Piotte(COLUMN)91(COLUMN)76 Oklahoma City(COLUMN)94(COLUMN)70 Omaha(COLUMN)91(COLUMN)78 Orlando(COLUMN)93(COLUMN)68 Philadelphia(COLUMN)87(COLUMN)66 Phonex(COLUMN)109(COLUMN)93 Pittsburgh(COLUMN)84(COLUMN)62 Portland Me.(COLUMN)71(COLUMN)54 Portland, Ore(COLUMN)79(COLUMN)60 Providence(COLUMN)78(COLUMN)84 Raleigh(COLUMN)89(COLUMN)70 Rapid City(COLUMN)97(COLUMN)65 Reno(COLUMN)97(COLUMN)66 Richmond(COLUMN)89(COLUMN)69 St. Louis(COLUMN)89(COLUMN)71 St. Pbg. Tampa(COLUMN)94(COLUMN)76 Salt Lake City(COLUMN)96(COLUMN)68 San Antonio(COLUMN)93(COLUMN)77 San Diego(COLUMN)80(COLUMN)74 San Francisco(COLUMN)88(COLUMN)68 San Huan, P.R.(COLUMN)85(COLUMN)76 St. Ste. Marie(COLUMN)69(COLUMN)58 Seattle(COLUMN)76(COLUMN)64 [WORD ILLEGIBLE](COLUMN)92(COLUMN)79 Sioux Falls(COLUMN)90(COLUMN)79 Spokane(COLUMN)78(COLUMN)68 Syracuse(COLUMN)60(COLUMN)58 Topeka(COLUMN)98(COLUMN)89 Tucson(COLUMN)100(COLUMN)75 Tulsa(COLUMN)94(COLUMN)74 Washington(COLUMN)85(COLUMN)69 Wichita(COLUMN)95(COLUMN)82(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)64 Amsterdam(COLUMN)clear(COLUMN)1 p.m.(COLUMN)73 Ankara(COLUMN)clear(COLUMN)3 p.m.(COLUMN)79 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)95 Auckland(COLUMN)pt. cldy(COLUMN)midnight(COLUMN)50 Berlin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)1 p.m. 79 Birmingham(COLUMN)clear(COLUMN)1 p.m.(COLUMN)66 Brussels(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)68 Cairo(COLUMN)clear(COLUMN)2 p.m.(COLUMN)97 Casablanca(COLUMN)clear(COLUMN)noon(COLUMN)72 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)66 Copenhagen(COLUMN)clear(COLUMN)1 p.m.(COLUMN)70 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)63 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)82 Lisbon(COLUMN)clear(COLUMN)noon(COLUMN)75 London(COLUMN)clear(COLUMN)1 p.m.(COLUMN)68 Mandrid(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)68 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)86 Manila(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)79 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)81 New Delhi(COLUMN)rain(COLUMN)5 p.m.(COLUMN)79 Nice(COLUMN)rain(COLUMN)1 p.m.(COLUMN)68 Oslo(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)68 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)60 Peking(COLUMN)rain(COLUMN)8 p.m.(COLUMN)82 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)88 Saigon(COLUMN)clear(COLUMN)8 p.m.(COLUMN)82 Solia(COLUMN)clear(COLUMN)2 p.m.(COLUMN)50 Stockholm(COLUMN)clear(COLUMN)1 p.m.(COLUMN)72 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)48 Tel Aviv(COLUMN)clear(COLUMN)2 p.m.(COLUMN)90 Tokyo(COLUMN)pt. cldy(COLUMN)9 p.m.(COLUMN)81 Tunis(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)84 Vienna(COLUMN)clear(COLUMN)1 p.m.(COLUMN)77 Warsaw(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)73(END TABLE) Temperatures Western Hemispheres(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Appcahulco(COLUMN)clear(COLUMN)89(COLUMN)80 Bermuda(COLUMN)pt. cldy(COLUMN)75(COLUMN)80 Bogota(COLUMN)cloudy(COLUMN)67(COLUMN)41 Colgery(COLUMN)cloudy(COLUMN)61(COLUMN)50 Culacan(COLUMN)pt. cldy(COLUMN)97(COLUMN)76 Ecmonton(COLUMN)pt. cldy(COLUMN)88(COLUMN)98 Havana(COLUMN)cleae(COLUMN)84(COLUMN)74 Kingston(COLUMN)pt. cldy(COLUMN)87(COLUMN)79 Mexico Cityhaze(COLUMN)77(COLUMN)56 Monterroy(COLUMN)clear(COLUMN)50(COLUMN)74 Montreal(COLUMN)cloudy(COLUMN)79(COLUMN)64 Nassad(COLUMN)pt. cldy(COLUMN)93(COLUMN)64 Ottawa(COLUMN)cloudy(COLUMN)79(COLUMN)68 Regina(COLUMN)pt. cldy(COLUMN)77(COLUMN)82 [WORD ELLEGIBLE](COLUMN)faie(COLUMN)89(COLUMN)75 Toronto(COLUMN)clear(COLUMN)77(COLUMN)60 Vancouver(COLUMN)clear(COLUMN)79(COLUMN)84 Veracruz(COLUMN)pt. cldy(COLUMN)91(COLUMN)76 Winnipeg(COLUMN)cloudy(COLUMN)73(COLUMN)69(END TABLE)