Washington: Today - Variably [LINE ILLEGIBLE] will be in the mid 80s, lows in the mid 50s. The change of rain is 40 percent today and 60 percent tonight. Wind will be from the east at from 5 to 15 mph. Wednesday - Partly cloudy, high near 70.

Maryland and Virginia: Today - Variably cloudy, rain likely by this afternoon. Highs will be from the 70s to the mid 80s lows from the 40s to the 50s. Wednesday - Partly cloudy, high from the 60s to the low 70s.

Lower Potomac and Chesapeake Bay: Today - Rain likely, with visibility of more than 5 miles - except lower in rain. Wind will be from the south at from 12 to 22 knots today, shifting to from the northwest day, shifting to from the northwest at from 10 to 18 knots tonight. Waves in unprotected waters will be near 3 feet.

Extended area forecast for Thursday through Saturday: Rain is possible on Friday fair through the rest of the period. Highs will be from the 60s to the mid 70s, lows in the 40s. Normal Washington temperatures for the period are a high of 67 and a low of 45.

West Virginia: Today - Rain, highs in the 70s, lows in the 40s. Wednesday - Partly sunny, highs from the mid 60s to the low 70s.

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 43 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 Polomac River stage at Little Falls should be near 4.5 feet today.

Washington data at 7 p.m. (EST) yesterday: Highest temperature since 7 a.m. yesterday, 69 degrees at 4:15 p.m. Lowest temperature since midnight, 52 degrees at 2:35 a.m. Excess of temperature since Apr. 1, 56 degrees. Deficiency of temperature since Jan. 1, 207 degrees. Record high temperature for today, 91 degrees in 1930. Record low temperature for today, 26 degrees in 1909. Relative humidity: Maximum, 55 percent at 5 a.m. Minimum, 43 percent at 2 p.m. Deficiency of precipitation since Apr. 1, 83 inches. Excess of precipitation since Jan. 1, 2.77 inches. Highest observed wind since 7 a.m. 9 miles per hour from the east at 8 a.m. Peak oust since 7 a.m., 15 miles per hour from the east at 12:41 p.m. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 mid.(COLUMN)53(COLUMN)38 1 a.m.(COLUMN)53(COLUMN)40 2 a.m.(COLUMN)53(COLUMN)43 3 a.m.(COLUMN)52(COLUMN)48 4 a.m.(COLUMN)53(COLUMN)50 5 a.m.(COLUMN)53(COLUMN)55 6 a.m.(COLUMN)54(COLUMN)53 7 a.m.(COLUMN)53(COLUMN)50 8 a.m.(COLUMN)53(COLUMN)55 9 a.m.(COLUMN)56(COLUMN)51 10 a.m.(COLUMN)58(COLUMN)59 11 a.m.(COLUMN)59(COLUMN)53 12 noon(COLUMN)60(COLUMN)50 1 p.m.(COLUMN)63(COLUMN)48 2 p.m.(COLUMN)65(COLUMN)43 3 p.m.(COLUMN)66(COLUMN)47 4 p.m.(COLUMN)68(COLUMN)45 5 p.m.(COLUMN)68(COLUMN)47 6 p.m.(COLUMN)65(COLUMN)47 7 p.m.(COLUMN)60(COLUMN)46(END TABLE) Temperature ending 7 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Abany(COLUMN)46(COLUMN)24 Albuquerque(COLUMN)60(COLUMN)37 Amarillo(COLUMN)76(COLUMN)35 Anchorage(COLUMN)47(COLUMN)33 Asheville(COLUMN)83(COLUMN)46 Atlanta(COLUMN)85(COLUMN)56 Atlantic City(COLUMN)54(COLUMN)41 Austin(COLUMN)82(COLUMN)66 Baltimore(COLUMN)61(COLUMN)46 Billings(COLUMN)51(COLUMN)35 Birmingham(COLUMN)85(COLUMN)57 Bismarck(COLUMN)54(COLUMN)34 Boise(COLUMN)62(COLUMN)36 Boston(COLUMN)53(COLUMN)35 Brownsville(COLUMN)87(COLUMN)74 Buffalo(COLUMN)42(COLUMN)33 Burlington(COLUMN)32(COLUMN)17 Casper(COLUMN)47(COLUMN)31 Charleston, S.C.(COLUMN)75(COLUMN)64 Charleston, W.Va.(COLUMN)76(COLUMN)51 Charlotte(COLUMN)83(COLUMN)55 Cheyenne(COLUMN)47(COLUMN)25 Chicago(COLUMN)65(COLUMN)54 Cincinnati(COLUMN)76(COLUMN)54 Cleveland(COLUMN)47(COLUMN)38 Columbia, S.C.(COLUMN)86(COLUMN)58 Columbus, Ohio(COLUMN)57(COLUMN)47 Dal.-Ft. Worth(COLUMN)76(COLUMN)64 Dayton(COLUMN)62(COLUMN)50 Denver(COLUMN)53(COLUMN)27 Des Moines(COLUMN)74(COLUMN)45 Detroit(COLUMN)39(COLUMN)33 Duluth(COLUMN)35(COLUMN)32 El Paso(COLUMN)58(COLUMN)38 Fairbanks(COLUMN)50(COLUMN)30 Fargo(COLUMN)45(COLUMN)34 Flagstaff(COLUMN)42(COLUMN)23 Great Falls(COLUMN)54(COLUMN)35 Hartford(COLUMN)55(COLUMN)32 Helena(COLUMN)60(COLUMN)33 Honolulu(COLUMN)79(COLUMN)70 Houston(COLUMN)73(COLUMN)69 Indianapolis(COLUMN)78(COLUMN)57 jackson, Miss.(COLUMN)81(COLUMN)64 Jacksonville(COLUMN)90(COLUMN)57 Juneau(COLUMN)43(COLUMN)38 Kansas City(COLUMN)76(COLUMN)46 Las Vegas(COLUMN)60(COLUMN)44 Little Rock(COLUMN)87(COLUMN)66 Los Angeles(COLUMN)70(COLUMN)55 Louisville(COLUMN)86(COLUMN)58 Memphis(COLUMN)85(COLUMN)69 Miami Beach(COLUMN)78(COLUMN)69 Midland-Odessa(COLUMN)78(COLUMN)45 Milwaukee(COLUMN)42(COLUMN)40 Mpls-St. Paul(COLUMN)46(COLUMN)39 Nashville(COLUMN)88(COLUMN)57 New Orleans(COLUMN)85(COLUMN)68 New York(COLUMN)57(COLUMN)37 Norfolk(COLUMN)57(COLUMN)46 North Platte(COLUMN)58(COLUMN)31 Oklahoma City(COLUMN)70(COLUMN)48 Omaha(COLUMN)69(COLUMN)41 Orlando(COLUMN)91(COLUMN)62 Philadelphia(COLUMN)55(COLUMN)37 Phoenix(COLUMN)67(COLUMN)47 Pittsburgh(COLUMN)58(COLUMN)45 Portland, Maine(COLUMN)47(COLUMN)25 Portland, Ore.(COLUMN)70(COLUMN)43 Providence(COLUMN)52(COLUMN)30 Raleigh(COLUMN)79(COLUMN)50 Rapid City(COLUMN)52(COLUMN)28 Reno(COLUMN)66(COLUMN)27 Richmond(COLUMN)69(COLUMN)44 St. Louis(COLUMN)85(COLUMN)70 St. Prbg.-Tampa(COLUMN)87(COLUMN)60 Salt Lake City(COLUMN)61(COLUMN)39 San Antonio(COLUMN)79(COLUMN)64 San Diego(COLUMN)66(COLUMN)52 San Francisco(COLUMN)78(COLUMN)56 San Juan(COLUMN)84(COLUMN)72 St. Ste. Marie(COLUMN)31(COLUMN)30 Seattle(COLUMN)64(COLUMN)45 Shreveport(COLUMN)85(COLUMN)61 Sioux Falls(COLUMN)51(COLUMN)36 Spokane(COLUMN)59(COLUMN)40 Syracuse(COLUMN)41(COLUMN)24 Topeka(COLUMN)78(COLUMN)45 Tucson(COLUMN)60(COLUMN)39 Tulsa(COLUMN)82(COLUMN)53 Washington(COLUMN)65(COLUMN)52 Wichita(COLUMN)72(COLUMN)45(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)clear(COLUMN)92(COLUMN)75 Barbados(COLUMN)cloudy(COLUMN)81(COLUMN)75 Bermuda(COLUMN)fair(COLUMN)69(COLUMN)62 Bogota(COLUMN)pt. cldy.(COLUMN)67(COLUMN)41 Havana(COLUMN)fair(COLUMN)81(COLUMN)68 Kingston(COLUMN)pt. cldy.(COLUMN)86(COLUMN)75 Montego Bay(COLUMN)pt. cldy.(COLUMN)85(COLUMN)72 Mexico City(COLUMN)fair(COLUMN)81(COLUMN)50 Monterrey(COLUMN)pt. cldy.(COLUMN)92(COLUMN)70 Nassau(COLUMN)fair(COLUMN)81(COLUMN)59 St. Kitts(COLUMN)pt. cldy.(COLUMN)88(COLUMN)70 Veracruz(COLUMN)fog(COLUMN)85(COLUMN)77(END TABLE)