Washington: Today - Rain, high near 70, low in the mid 40s. Chance of rain is 80 percent today and 50 percent tonight. Wind will be from the south at from 15 to 25 knots with gusts. Thursday - partly cloudy, high in the mid 60s.

Maryland and Virginia: Today - Rain, highs from the 60s to the mid 70s, lows from the upper 30s to the mid 40s. Thursday - Partly cloudy, highs from the 50s to the mid 60s.

Lower Potomac and Chesapeake Bay: Today - Rain with visibility of less than 3 miles. Wind will be from south at from 20 to 25 knots today, shifting to from the southwest at from 15 to 25 knots tonight. Waves unprotected waters will be from 1 to 3 feet.

Extended Area Forecast for Friday through Sunday: Fair through the period except for a chance of rain on Sunday.Highs will be from the 550s to the mid 60s, lows from the 30s to the mid 40s. Normal Washington temperatures for the period are a high of 70 and a low of 48.

West Virginia: Today - Cloudy, rain likely, highs from the 50s to the mid 60s, ows from the upper 30s to the mid 40s. Thursday - Cloudy, rain likely, highs from the mid 50s to near 60.

The ational Weather Forecast for today - The Pacific Northwest and extreme northwestern Montana will have scattered showers. Rain also will reach from the Great Lakes across the Ohio Valley, through New England to the mid-Atlantic Coast and the Carolinas. Thunder-showers will also fall from the Ohio Valley across the Carolinas. Some snow will be mixed with rain over the mountains of Maine. Most of the rest of the country will be sunny or partly clouyd. Mild temperatures will continue over the gulf coast and the southern California Coast. Elsewhere seasonably cool weather will dominate.

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 41 for the polutant, photochemcial oxidants. Index values between 25 and 49 Indicate 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 dicates that the air quality will imactivity. The forecast for today in-

The National Weather Service forecasts the Potomac River stage at Little Fails should be near 3.9 prove.

Almanac Data for today: The sun rises 5:26 a.m., sets 6:49 p.m., moon rises 3:20 p.m., sets 3:24 a.m. Tides: High 4:54 a.m. and 5:18 p.m., low 11:53 a.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).

Pollen Count: 113 trees (a reading of more than 7 is considered to be undersirable).

Local Temp, Humidity(TABLE) Time(COLUMN)t.(COLUMN)H. 12 mid.(COLUMN)52(COLUMN)61 1 a.m.(COLUMN)51(COLUMN)66 2 a.m.(COLUMN)50(COLUMN)68 3 a.m.(COLUMN)49(COLUMN)71 4 a.m.(COLUMN)49(COLUMN)68 5 a.m.(COLUMN)48(COLUMN)68 6 a.m.(COLUMN)47(COLUMN)77 7 a.m.(COLUMN)48(COLUMN)80 8 a.m.(COLUMN)53(COLUMN)69 9 a.m.(COLUMN)56(COLUMN)64 10 a.m.(COLUMN)58(COLUMN)60 11 a.m.(COLUMN)61(COLUMN)56 12 noon(COLUMN)62(COLUMN)52 1 p.m.(COLUMN)56(COLUMN)64 2 p.m.(COLUMN)64$48 3 p.m.(COLUMN)63(COLUMN)48 4 p.m.(COLUMN)62(COLUMN)41 5 p.m.(COLUMN)60(COLUMN)44 6 p.m.(COLUMN)58(COLUMN)47 7 p.m.(COLUMN)51(COLUMN)52(END TABLE)

Temperatures ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)54(COLUMN)27 Albuquerque(COLUMN)66(COLUMN)30 Amarilo(COLUMN)73(COLUMN)34 Anchorage(COLUMN)48(COLUMN)34 Asheville(COLUMN)66(COLUMN)52 Atlanta(COLUMN)73(COLUMN)57 Atlantic City(COLUMN)55(COLUMN)36 Austin(COLUMN)82(COLUMN)64 Baltimore(COLUMN)67(COLUMN)41 Billings(COLUMN)47(COLUMN)38 Birmingham(COLUMN)77(COLUMN)63 Bismarck(COLUMN)46(COLUMN)33 Bosie(COLUMN)54(COLUMN)38 Boston(COLUMN)55(COLUMN)43 Brownsville(COLUMN)89(COLUMN)73 Buffalo(COLUMN)52(COLUMN)28 Burlington(COLUMN)50(COLUMN)26 Casper(COLUMN)45(COLUMN)27 Chas'tn, S.C.(COLUMN)69(COLUMN)67 Chast'n. W. Va.(COLUMN)71(COLUMN)47 Charlotte(COLUMN)57(COLUMN)51 Cheyenne(COLUMN)43(COLUMN)31 Chicago(COLUMN)52(COLUMN)43 Columbia, S.C.(COLUMN)70(COLUMN)56 Columbus, Ohio(COLUMN)61(COLUMN)45 Dal. Ft. Worth(COLUMN)86(COLUMN)49 Dayton(COLUMN)62(COLUMN)47 Denver(COLUMN)52(COLUMN)38 Des Molnes(COLUMN)48$44 Detroit(COLUMN)56(COLUMN)38 Duluth(COLUMN)52(COLUMN)36 El Paso(COLUMN)75(COLUMN)42 Fairbanks(COLUMN)42(COLUMN)30 Fargo(COLUMN)54(COLUMN)40 Flagstaff(COLUMN)52(COLUMN)17 Great Falls(COLUMN)42(COLUMN)32 Hartford(COLUMN)57(COLUMN)35 Helena(COLUMN)47(COLUMN)40 Honolulu(COLUMN)88(COLUMN)72 Houston(COLUMN)77(COLUMN)70 Indianapolis(COLUMN)66(COLUMN)49 Jackson, Miss.(COLUMN)83(COLUMN)66 Jacksonville(COLUMN)82(COLUMN)66 Juneau(COLUMN)56(COLUMN)39 Kansas City(COLUMN)62(COLUMN)44 Las Vegas(COLUMN)71(COLUMN)47 Little Rock(COLUMN)75(COLUMN)52 Los Angeles(COLUMN)72(COLUMN)54 Louisville(COLUMN)66(COLUMN)52 Miami Beach(COLUMN)77(COLUMN)74 Midland-Odessa(COLUMN)62(COLUMN)43 Milwaukes(COLUMN)43(COLUMN)38 Mpls. St. Paul(COLUMN)56(COLUMN)38 Nashville(COLUMN)83(COLUMN)60 New Orleans(COLUMN)86(COLUMN)77 New York(COLUMN)45(COLUMN)40 Norfolk(COLUMN)60(COLUMN)42 North Platte(COLUMN)58(COLUMN)39 Oklahoma City(COLUMN)85(COLUMN)48 Omaha(COLUMN)45(COLUMN)40 Orlando(COLUMN)86(COLUMN)64 Philadelphia(COLUMN)59(COLUMN)36 Phoenix(COLUMN)78(COLUMN)51 Pittsburgh(COLUMN)59(COLUMN)42 Portland, Maine(COLUMN)49(COLUMN)26 Portland, Ore.(COLUMN)51(COLUMN)47 Providence(COLUMN)53(COLUMN)40 Raleigh(COLUMN)57(COLUMN)50 Rapid City(COLUMN)54(COLUMN)34 Reno(COLUMN)59(COLUMN)26 Richmond(COLUMN)60(COLUMN)42 St. Louis(COLUMN)68(COLUMN)49 St. Prbg.-Tampa(COLUMN)87(COLUMN)70 Salt Lake City(COLUMN)50(COLUMN)30 San Antonio(COLUMN)83(COLUMN)62 San Diego(COLUMN)69(COLUMN)56 San Francisco(COLUMN)61(COLUMN)51 St. Ste. Marle(COLUMN)51(COLUMN)28 Seattle(COLUMN)54(COLUMN)45 Shreveport(COLUMN)78(COLUMN)64 Sioux Falls(COLUMN)44(COLUMN)34 Spokane(COLUMN)52(COLUMN)31 Syracuse(COLUMN)51(COLUMN)27 Topeka(COLUMN)67(COLUMN)39 Tucson(COLUMN)72(COLUMN)43 Tulsa(COLUMN)73(COLUMN)49 Washington(COLUMN)67(COLUMN)47 Wlchita(COLUMN)76(COLUMN)43(END TABLE)

Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weahter(COLUMN)High(COLUMN)Low Acapuico(COLUMN)fair(COLUMN)88 Barbados(COLUMN)pt. cldy(COLUMN)86(COLUMN)78 Bermuda(COLUMN)pt. cldy(COLUMN)66(COLUMN)56 Bogota(COLUMN)pt. cldy(COLUMN)64(COLUMN)51 Havana(COLUMN)pt. cldy(COLUMN)84(COLUMN)72 Kingston(COLUMN)fair(COLUMN)82(COLUMN)77 Montego Bay(COLUMN)pt. cldy(COLUMN)86(COLUMN)72 Mexico City(COLUMN)haze(COLUMN)88(COLUMN)58 Monterrey(COLUMN)pt. cldy(COLUMN)99(COLUMN)73 Nassau(COLUMN)pt. cldy(COLUMN)82(COLUMN)70 St. Kitts(COLUMN)fair(COLUMN)87(COLUMN)74 St. Thomas(COLUMN)fair(COLUMN)86(COLUMN)75 Veracruz(COLUMN)haze(COLUMN)90(COLUMN)73(END TABLE)