Washington: Today - Cloudy, high in upper 30s, low in mid 20s. The chance of rain is 30 per cent today and 10 per cent tonight. Thursday - Variably cloudy, high near 40.

Maryland and Virginia: Today - Variably cloudy, chance of snow flurries of drizzle. Highs will be from the low 30s to near 40, lows from the teens to the 20s. Thursday - Variably cloudy, highs from near 30 to near 40.

Lower Potomac and Chesapeake Bay: Today - Chance of snow flurries. Visibility will be more than 5 miles. Wind will be from the northwest at from 15 to 25 knots. Waves In uprotected waters will be from 2 to 4 feet.

Estended Area Forecast for Friday through Sunday: Partly cloudy through the period with a chance of rain or snow on Friday and Saturday. Highs will be in the 30s, lows from the teens of the 20s. Normal Washington temperatures for the period are a high of 44 and low of 28.

West Virginia: Today - Snow flurries, highs from the mid 20s to the low 30s, lows from the low teens to near 20. Thursday - Cloudy, highs from the mid 20s to the low 30s.

The National Weather Forecast for today - Snow will fall over the upper Ohio Valley, northern and Central Appalachians and northern Atlantic states, with some rain in New Jersey. Snow will spread from the northern and central Rockies into the plains as far south as northern Texas and Arkansas. Rain will reach from central and southern Texas into Alabama. Showers will continue throughout the Pacific Coast, with snow in the higher elevations. Temperature will be cold in the northern Rockies> and from the Plains to the Appalachians. It will turn colder along much of the Atlantic Coast, while the Pacific Coast and Southwest will be seasonably cool.

Almanac Data for today - Sun Rises 7:24a.m., sets 12:37 p.m.; Tides: high 3:22 a.m. and 3:55 p.m., low 10:06 a.m. and 10:45 p.m. High and low tides at the following locations may be obtained by subtracting the hours indicated from the tides above. Annapolis (1 1/2), Bloody Point Lighthouse (4 1/2), Deate, Md. (4 1/2), Colonial Beach (6), Norfolk (1 1/2), Virginia point Lookout (7).

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 11 for the pollutant, Carbon monoxide. Index values between zero and 24 indicate good air quality. When the index exceeds unhealthy and individuals woth lung, heart and eve ailments are urged to restrict their activity. The forecast for today indicates tht the air Quality will be good.

The National Weather Service forecasts the Potomac River stage at Little Falls should be near 4.1 feet today. Local Temp., Humidity(TABLE) Time(COLUMN)T.(COLUMN)H. 12 midnite(COLUMN)31(COLUMN)72 1 a.m.(COLUMN)31(COLUMN)75 2 a.m.(COLUMN)31(COLUMN)75 2 a.m.(COLUMN)31(COLUMN)82 3 a.m.(COLUMN)31(COLUMN)82 4 a.m.(COLUMN)31(COLUMN)82 5 a.m.(COLUMN)31(COLUMN)78 6 a.m.(COLUMN)32(COLUMN)78 7 a.m.(COLUMN)32(COLUMN)78 8 a.m.(COLUMN)33(COLUMN)79 9 a.m.(COLUMN)32(COLUMN)82 10 a.m.(COLUMN)32(COLUMN)82 11 a.m.(COLUMN)32(COLUMN)82 12 a.m.(COLUMN)32(COLUMN)82 1 p.m.(COLUMN)32(COLUMN)82 2 p.m.(COLUMN)33(COLUMN)82 3 p.m.(COLUMN)34(COLUMN)82 4 p.m.(COLUMN)35(COLUMN)83 5 p.m.(COLUMN)36(COLUMN)82 6 p.m.(COLUMN)36(COLUMN)85 7 p.m.(COLUMN)37(COLUMN)86(END TABLE) Temperatures ending 8 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)30(COLUMN)12 Albuquerque(COLUMN)52(COLUMN)35 Amarillo(COLUMN)39(COLUMN)6 Anchorage(COLUMN)19(COLUMN)12 Asheville(COLUMN)38(COLUMN)26 Atlanta(COLUMN)44(COLUMN)35 Atlantic City(COLUMN)31(COLUMN)26 Austin(COLUMN)73(COLUMN)26 Baltimore(COLUMN)29(COLUMN)26 Billings(COLUMN)7(COLUMN)-1 Birmingham(COLUMN)44(COLUMN)38 Bismarck(COLUMN)-8(COLUMN)-16 Boise(COLUMN)46(COLUMN)42 Boston(COLUMN)32(COLUMN)25 Brownsville(COLUMN)83(COLUMN)45 Buffalo(COLUMN)20(COLUMN)11 Casper(COLUMN)29(COLUMN)3 Charleston, W Va.(COLUMN)24(COLUMN)22 Charlotte(COLUMN)39(COLUMN)36 Cheyenne(COLUMN)13(COLUMN)5 Chicago(COLUMN)14(COLUMN)11 Cincinnati(COLUMN)22(COLUMN)21 Cleveland(COLUMN)20(COLUMN)16 Columbia, S.C.(COLUMN)43(COLUMN)38 Columbus(COLUMN)20(COLUMN)19 Dal.-Ft. Worth(COLUMN)58(COLUMN)16 Dayton(COLUMN)23(COLUMN)21 Denver(COLUMN)17(COLUMN)2 Des Moines(COLUMN)10(COLUMN)-9 Detroit(COLUMN)21(COLUMN)6 Duluth(COLUMN)6(COLUMN)-21 El Paso(COLUMN)58(COLUMN)45 Fairbanks(COLUMN)-5(COLUMN)-13 Fargo(COLUMN)-12(COLUMN)-24 Flagstaff(COLUMN)35(COLUMN)32 Great Falls(COLUMN)6(COLUMN)0 Hartford(COLUMN)29(COLUMN)17 Helena(COLUMN)19(COLUMN)13 Jacksonville(COLUMN)57(COLUMN)47 Juneau(COLUMN)28(COLUMN)19 Kansas City(COLUMN)22(COLUMN)-10 Las Vegas(COLUMN)52(COLUMN)45 Little Rock(COLUMN)33(COLUMN)19 Los Angeles(COLUMN)57(COLUMN)51 Louisville(COLUMN)28(COLUMN)27 Memphis(COLUMN)44(COLUMN)26 Miami Beach(COLUMN)70(COLUMN)67 Midland-Odessa(COLUMN)54(COLUMN)22 Milwaukee(COLUMN)22(COLUMN)10 Mpls., St. Paul(COLUMN)3(COLUMN)-12 Nashville(COLUMN)34(COLUMN)33 New Orleans(COLUMN)61(COLUMN)48 New York(COLUMN)28(COLUMN)24 Norfolk(COLUMN)36(COLUMN)31 North Platte(COLUMN)6(COLUMN)-14 Oklahoma City(COLUMN)37(COLUMN)4 Omaha(COLUMN)10(COLUMN)-14 Orlando(COLUMN)68(COLUMN)53 Philadelphia(COLUMN)H28(COLUMN)23 Phoenix(COLUMN)62(COLUMN)554 Pittsburgh(COLUMN)21(COLUMN)21 Portland, Me.(COLUMN)27(COLUMN)9 Portland, Ore.(COLUMN)45(COLUMN)40 Providence(COLUMN)25(COLUMN)22 Raleigh(COLUMN)42(COLUMN)34 Rapid City(COLUMN)6(COLUMN)0 Reno(COLUMN)47(COLUMN)36 Richmond(COLUMN)37(COLUMN)30 St. Louis(COLUMN)24(COLUMN)10 St. Prbg.-Tampa(COLUMN)64(COLUMN)54 Salt Lake City(COLUMN)48(COLUMN)37 San Antonio(COLUMN)76(COLUMN)28 San Diego(COLUMN)67(COLUMN)60 San Francisco(COLUMN)62(COLUMN)54 San Juan(COLUMN)86(COLUMN)71 St. Ste. Marie(COLUMN)14(COLUMN)-16 Seattle(COLUMN)54(COLUMN)40 Shreveport(COLUMN)56(COLUMN)22 Sioux Falls(COLUMN)-2(COLUMN)-24 Spokane(COLUMN)34(COLUMN)33 Syracuse(COLUMN)25(COLUMN)16 Tucson(COLUMN)61(COLUMN)30 Tulsa(COLUMN)32(COLUMN)2 Washington(COLUMN)34(COLUMN)31 Wichita(COLUMN)25(COLUMN)3(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)36 Amsterdam(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)43 Ankara(COLUMN)clear(COLUMN)3 p.m.(COLUMN)30 Athens(COLUMN)cloudy(COLUMN)2 p.m.(COLUMN)46 Auckland(COLUMN)clear(COLUMN)midnight(COLUMN)66 Berlin(COLUMN)clear(COLUMN)1 p.m.(COLUMN)37 Birmingham(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)37 Brussels(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)41 Cairo(COLUMN)clear(COLUMN)2 p.m.(COLUMN)72 Casablanca(COLUMN)rain(COLUMN)noon(COLUMN)50 Copenhagen(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)37 Dublin(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)32 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)34 Hong Kong(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)48 Lisbon(COLUMN)pt. cldy(COLUMN)noon(COLUMN)50 London(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)36 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)37 Malta(COLUMN)clear(COLUMN)1 p.m.(COLUMN)59 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)79 Moscow(COLUMN)cloudy(COLUMN)3 p.m.(COLUMN)16 New Delhi(COLUMN)clear(COLUMN)5 p.m.(COLUMN)64 Nice(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)54 Oslo(COLUMN)snow(COLUMN)1 p.m.(COLUMN)32 Paris(COLUMN)clear(COLUMN)1 p.m.(COLUMN)43 Peking(COLUMN)clear(COLUMN)8 p.m.(COLUMN)28 Rome(COLUMN)clear(COLUMN)1 p.m.(COLUMN)54 Saigon(COLUMN)cloudy(COLUMN)8 p.m.(COLUMN)82 Sofia(COLUMN)snow(COLUMN)2 p.m.(COLUMN)28 Stockholm(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)36 Sydney(COLUMN)pt. cldy(COLUMN)10 p.m.(COLUMN)70 Tel Aviv(COLUMN)clear(COLUMN)2 p.m.(COLUMN)70 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)41 Tunis(COLUMN)clear(COLUMN)1 p.m.(COLUMN)59 Vienna(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)34 Warsaw(COLUMN)pt. cldy(COLUMN)1 p.m.(COLUMN)32(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)H.(COLUMN)L. Acapulco(COLUMN)fair(COLUMN)86(COLUMN)72 Barbados(COLUMN)pt. cldy(COLUMN)82(COLUMN)70 Bermuda(COLUMN)cloudy(COLUMN)69(COLUMN)64 Bogota(COLUMN)fair(COLUMN)68(COLUMN)35 Calgary(COLUMN)snow(COLUMN)5(COLUMN)-6 Edmonton(COLUMN)cloudy(COLUMN)zero(COLUMN)-17 Havana(COLUMN)pt. cldy(COLUMN)75(COLUMN)64 Kingston(COLUMN)fair(COLUMN)84(COLUMN)73 Montego Bay(COLUMN)pt. cldy(COLUMN)81(COLUMN)68 Mexico City(COLUMN)haze(COLUMN)73(COLUMN)40 Monterrey(COLUMN)pt. cldy(COLUMN)92(COLUMN)38 Montreal(COLUMN)clear(COLUMN)7(COLUMN)-2 Nassau(COLUMN)fair(COLUMN)70(COLUMN)63 Ottawa(COLUMN)clear(COLUMN)7(COLUMN)-6 Regina(COLUMN)clear(COLUMN)-11(COLUMN)-17 St. Kitts(COLUMN)pt. cldy(COLUMN)82(COLUMN)70 St. Thomas(COLUMN)fair(COLUMN)84(COLUMN)69 Toronto(COLUMN)pt. cldy(COLUMN)21(COLUMN)5 Vancouver(COLUMN)pt. cldy(COLUMN)48(COLUMN)39 Veracruz(COLUMN)pt. cldy(COLUMN)82(COLUMN)63 Winnipeg(COLUMN)snow(COLUMN)-13(COLUMN)-20(END TABLE)