Washington: Today - Sunny, highs in mid to upper 80s, low in 60s. Chance of rain near zero through tonight. Sunday - Sunny, highs inn mid to upper 80s.

Maryland and Virginia: Today - Sunny, highs from near 80 to near 90, lows from near 60 to mid 60s. Sunday - Sunny, highs from near 80 to near 90.

Lower Potomac and Chesapeake Bay: Today - Fair skies with good visibility through tonight. Winds should be northwesterly at up to 15 knots this morning becoming easterly at 10 knots or less this afternoon and then shifting to southwestern, at near 5 knots tonight.

Extended Area Outllook: For Monday through Wednesday - Fair skies through period with chance of rain Tuesday, less humid Wednesday. Highs should average in mid 80s to mid 90s, lows in mid 60s to mid 70s through period. Washington's normal temperature range for this time of year is from 88 to 70.

Atlantic Ocean Beaches from Cape May through Maryland: Today and Sunday - Sunny, highs in 80s. Water Temperatures should be in low to mid 70s.

Atlantic Ocean Beaches from Cape Hatteras through Virginia: Today and Sunday - Sunny, highs in mid to upper 80s. Water temperatures should be near 80.

West Virginia: Today - Sunny, highs low to mid 80s, lows and 50s to mid 60s. Sunday - Sunny, highs in mid 80s to near 90.

The National Weather Forecast for Today - Showers will be scattered from the southern Rockies into east portions of the southern intermountain region. Showers and thundershowers will extend from much of the middle Missouri Valley through the upper Mississippi Valley as well as from the lower Mississippi Valley across the Gulf of Mexico states to include Florida and Georgia. Temperatures will be seasonably [WORD ILLEGIBLE] in the southwest but continued warm or hot over the remained of the nation.

ALMANAC DATA FOR July 23, 1977, Sun rises 6:01 a.m., sets 8:27 p.m.; moon rises 1:29 p.m., sets 1:33 a.m. Tides: High 1:33 a.m. and 1:51 p.m., low 8:30 a.m. and 8:32 p.m. High and low tides at the following locations can be obtained by subtracting the hours indicated from the tides above. Annapolis [WORD ILLEGIBLE] Bloody Point Lighthouse [WORD ILLEGIBLE] Deale, Md. (4 1/2); Colonial Beach (6); Norfolk (1 1/2); Virginia Beach (1); Solomons Island (6 1/2); Point Lookout (7).Pollen count: S. English Plaintain (note: 7 or higher is considered undesirable.)

The Council of Governments' Air Quality Index for yesterday showed the high reaching in the Washington area during the 2 to 3 p.m. period was 37 for the pollutant, photochemical [WORD ILLEGIBLE] Index values between 25 and 49 indicate fair air quality. When the index exceeds 100 the air becomes hazardous and persons with lung, heart and eye problems should restrict their activity. The forecast for today indicates the air quality will improve.

The National Weather Service forecasts that the Potomac River stage at Little Falls with rise to 3.1 feet today.

Washington data at 8 p.m. (EDT) yesterday:

Highest temperatures since 8 a.m. yesterday, B7 degrees at 1:30 p.m. Lowest temperatures since midnight, 75 degrees at 2:35 a.m. Excess of temperature since July 1, 109 degrees. Excess of temperature since Jan 1, 315 degrees. Record high temperature for today, 98 degrees in 1952. Record low temperature for today, 56 degrees in 1890. Relative humidity: Maximum., 91 per cent at 3 a.m.; Minimum, 35 per cent at 3 p.m. 24 hour precipitation . 59 inches. Excess of precipitation since July 1, .86 inches.Deficiency of precipitation since Jan. 1, 5.53 inches. Highest observed wind since 8 a.m. 17 miles per hour from the north at 8:53 a.m. Peak gust since 8 a.m., 25 miles per hour from the north at 4:54 p.m. Local Temps., Humidity(TABLE) Time(COLUMN)T.(COLUMN) . 12 mid.(COLUMN)75(COLUMN)91 1 a.m.(COLUMN)76(COLUMN)88 2 a.m.(COLUMN)76(COLUMN)88 3 a.m.(COLUMN)75(COLUMN)91 4 a.m.(COLUMN)75(COLUMN)91 5 a.m.(COLUMN)75(COLUMN)91 6 a.m.(COLUMN)75(COLUMN)91 7 a.m.(COLUMN)75(COLUMN)85 8 a.m.(COLUMN)77(COLUMN)71 9 a.m.(COLUMN)79(COLUMN)63 10 a.m.(COLUMN)82(COLUMN)55 11 a.m.(COLUMN)84(COLUMN)50 12 noon(COLUMN)85(COLUMN)42 1 p.m.(COLUMN)86(COLUMN)42 2 p.m.(COLUMN)87(COLUMN)42 3 p.m.(COLUMN)87(COLUMN)35 4 p.m.(COLUMN)87(COLUMN)35 5 p.m.(COLUMN)86(COLUMN)36 6 p.m.(COLUMN)85(COLUMN)40(END TABLE) Temperatures ending 8 a.m. (EDT) Yesterday(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)96(COLUMN)63 Albuquerque(COLUMN)90(COLUMN)68 Amarillo(COLUMN)91(COLUMN)64 Anchorage(COLUMN)70(COLUMN)58 Asheville(COLUMN)91(COLUMN)69 Atlanta(COLUMN)93(COLUMN)70 Atlantic City(COLUMN)92(COLUMN)74 Austin(COLUMN)97(COLUMN)76 Baltimore(COLUMN)97(COLUMN)75 Billings(COLUMN)92(COLUMN)64 Birmingham(COLUMN)93(COLUMN)74 Bismark(COLUMN)85(COLUMN)58 Boise(COLUMN)100(COLUMN)69 Boston(COLUMN)102(COLUMN)70 Brownsville(COLUMN)94(COLUMN)77 Buffalo(COLUMN)87(COLUMN)60 Burlington, Vt.(COLUMN)87(COLUMN)57 Casper(COLUMN)80(COLUMN)59 Charlston, W. Va.(COLUMN)91(COLUMN)71 Charlotte, N.C.(COLUMN)100(COLUMN)77 Cheyenne(COLUMN)62(COLUMN)55 Chicago(COLUMN)87(COLUMN)68 Cincinnati(COLUMN)92(COLUMN)72 Cleveland(COLUMN)84(COLUMN)65 Columbia, S.C.(COLUMN)103(COLUMN)74 Columbus, Ohio(COLUMN)87(COLUMN)62 Dal.-Ft. Worth(COLUMN)99(COLUMN)75 Dayton(COLUMN)90(COLUMN)61 Denver(COLUMN)67(COLUMN)62 Des Moines(COLUMN)84(COLUMN)67 Detroit(COLUMN)90(COLUMN)62 Duluth(COLUMN)77(COLUMN)49 El Paso(COLUMN)95(COLUMN)64 Fairbanks(COLUMN)71(COLUMN)58 Fargo(COLUMN)82(COLUMN)60 Flagstaff(COLUMN)80(COLUMN)56 Great Falls(COLUMN)94(COLUMN)65 Hartford(COLUMN)101(COLUMN)68 Helena(COLUMN)90(COLUMN)54 Honolulu(COLUMN)89(COLUMN)74 Houston(COLUMN)94(COLUMN)80 Indianapolis(COLUMN)89(COLUMN)71 Jackson, Miss.(COLUMN)89(COLUMN)75 Jacksonville(COLUMN)94(COLUMN)76 Juneau(COLUMN)55(COLUMN)51 Kansas City(COLUMN)87(COLUMN)72 Las Vegas(COLUMN)108(COLUMN)88 Little Rock(COLUMN)91(COLUMN)73 Los Angeles(COLUMN)84(COLUMN)54 Louisville(COLUMN)93(COLUMN)75 Memphis(COLUMN)92(COLUMN)78 Miami Beach(COLUMN)86(COLUMN)79 Midland(COLUMN)94(COLUMN)68 Milwaukee(COLUMN)75(COLUMN)62 Mpls-St. Paul Nashville(COLUMN)95(COLUMN)75 New Orleans(COLUMN)93(COLUMN)74 New York(COLUMN)99(COLUMN)75 Norfolk(COLUMN)98(COLUMN)75 North Platte(COLUMN)66(COLUMN)63 Oklahoma City(COLUMN)99(COLUMN)70 Omaha(COLUMN)80(COLUMN)69 Orlando(COLUMN)94(COLUMN)75 Philadelphia(COLUMN)100(COLUMN)75 Phoenix(COLUMN)100(COLUMN)86 Pittsburgh(COLUMN)89(COLUMN)62 Portland, Mc.(COLUMN)99(COLUMN)63 Portland, Ore.(COLUMN)82(COLUMN)58 Providence(COLUMN)100(COLUMN)73 Raleigh(COLUMN)100(COLUMN)72 Rapid City(COLUMN)80(COLUMN)63 Reno(COLUMN)94(COLUMN)60 Richmond(COLUMN)101(COLUMN)71 St. Louis(COLUMN)90(COLUMN)71 St. Porgs-Tampa(COLUMN)90(COLUMN)77 Salt Lake City(COLUMN)92(COLUMN)69 San Antonia(COLUMN)94(COLUMN)78 San Diego(COLUMN)77(COLUMN)67 San Francisco(COLUMN)62(COLUMN)55 San Juan, P.R.(COLUMN)86(COLUMN)74 St. Ste. Marle(COLUMN)76(COLUMN)45 Seattle(COLUMN)75(COLUMN)57 Shreveport(COLUMN)94(COLUMN)72 Sioux Falls(COLUMN)83(COLUMN)56 Spokane(COLUMN)91(COLUMN)63 Syracuse(COLUMN)90(COLUMN)56 Topeka(COLUMN)107(COLUMN)76 Tucson(COLUMN)93(COLUMN)76 Tulsa(COLUMN)95(COLUMN)75 Tulsa(COLUMN)95(COLUMN)75 Washington(COLUMN)95(COLUMN)75 Wichita(COLUMN)57(COLUMN)71(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)63 Amsterdam(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)68 Ankara(COLUMN)clear(COLUMN)3 p.m.(COLUMN)83 Athens(COLUMN)clear(COLUMN)2 p.m.(COLUMN)88 Auckland(COLUMN)rain(COLUMN)midnight(COLUMN)52 Berlin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)64 Birmingham(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)66 Brussels(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)64 Cairo(COLUMN)Clear(COLUMN)2 p.m.(COLUMN)90 Casablanca(COLUMN)pt. cldy(COLUMN)noon(COLUMN)72 Copenhagen(COLUMN)pt. cloudy(COLUMN)1 p.m.(COLUMN)61 Dublin(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)70 Geneva(COLUMN)clear(COLUMN)1 p.m.(COLUMN)68 Hong Kong pt.(COLUMN)cldy(COLUMN)8 p.m.(COLUMN)84 Lisbon(COLUMN)clear(COLUMN)noon(COLUMN)75 London(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)68 Madrid(COLUMN)clear(COLUMN)1 p.m.(COLUMN)82 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)88 Manila(COLUMN)Cloudy(COLUMN)8 p.m.(COLUMN)75 Moscow(COLUMN)pt. cldy(COLUMN)3 p.m.(COLUMN)79 New Delhi(COLUMN)cloudy(COLUMN)5 p.m.(COLUMN)90 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)77 Oslo(COLUMN)pt. Cldy(COLUMN)1 p.m.(COLUMN)66 Paris(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)70 Peking(COLUMN)pt. cldy(COLUMN)8 p.m.(COLUMN)77 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)81 Saigon(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)77 Sofia(COLUMN)pt. cldy(COLUMN)2 p.m.(COLUMN)79 Stockholm(COLUMN)pt. Cldy(COLUMN)1 p.m.(COLUMN)66 Sydney(COLUMN)clear(COLUMN)10 p.m.(COLUMN)48 Tel Aviv(COLUMN)clear(COLUMN)2 p.m.(COLUMN)88 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)79 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)84 Vienna(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)70 Warsaw(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)64(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)H.(COLUMN)L. Acapulco(COLUMN)pt. cldy(COLUMN)90(COLUMN)77 Barbados(COLUMN)pt. cldy(COLUMN)86(COLUMN)77 Bermuda(COLUMN)pt. cldy(COLUMN)86(COLUMN)78 Calgary(COLUMN)clear(COLUMN)86(COLUMN)52 Edmonton(COLUMN)clear(COLUMN)82(COLUMN)45 Havana(COLUMN)fair(COLUMN)90(COLUMN)77 Kingston(COLUMN)fair(COLUMN)92(COLUMN)79 Montego Bay(COLUMN)sunny(COLUMN)90(COLUMN)74 Mexico City(COLUMN)fair(COLUMN)77(COLUMN)53(KEY OFF)Monterrey pt. cldy(COLUMN)99(COLUMN)76 Montreal(COLUMN)rain(COLUMN)84(COLUMN)52 Nassau(COLUMN)Pt. cldy(COLUMN)86(COLUMN)76 Ottawa(COLUMN)clear(COLUMN)84(COLUMN)55 Regina(COLUMN)cloudy(COLUMN)86(COLUMN)64 St. Kitts(COLUMN)pt. cldy(COLUMN)89(COLUMN)78 Toronto(COLUMN)clear(COLUMN)81(COLUMN)52 Vancouver(COLUMN)clear(COLUMN)72(COLUMN)52 Veracruz(COLUMN)pt. cldy(COLUMN)89(COLUMN)74 Winnepeg(COLUMN)clear(COLUMN)79(COLUMN)57(END TABLE)(KEYWORD)