Washington: Today- Partly cloudly, high in low 50s, low in low 30s. Morning showers possible. The chance of presipitation is 30 percent today and 10 per cent tonight. Tuesday - Cloudly, high in the mid 50s.

Maryland and Virginia: Today - Partly cloudly, highs from the 40s to the 50s. There is a chance of showers in Virginia, and snow in the Maryland mountains. Highs will be from the 40s to the upper 50s.

Lower Potomac and Chesapeake Bay: Today - Fair with visibility of more than 5 miles. Wind willbe from the south at less than 25 knots. Waves in unprotected waters will be less than 2 feet.

Extended Area Forecast for Wednesday through Friday: Chance of rain on Wednesday and on Friday, fair on Thursday. Highs will be from the 30s to the 40s. Temperatures will be nearly 10 degrees colder in the mountains. Normal Washington Temperatures for the period are a high of 50 and a low of 33.

West Virginia: Today - Partly cloudly, highs from the mid 30s to the mid 40s, lows from the upper teens to the low 30s. Tuesday - Rain, highs in the 50s.

The National Weather Forecast for today - Snow is likely over the Ohio Valley and the northern Appalachians. Rain is expected over the northern half of the Atlantic coast, while scattered showers will dot the Gulf Coast. Rain and snow will scatter over the northwest quarter of the country. Snow will develop over the northern plains and upper Mississippi Valley. Temperatures will continue to be chilly from the Mississippi Valley to the Atlantic coast and over the northern plains. It will be mild over the southern plains and in southwest, and seasonably cool in the Northwest.

Almanac data for today - Sunrises 7:03 a.m., sets 4:48 p.m., moon rises 6:40 p.m., sets 8:24 a.m.

Tides: High 8:57 a.m. and 9:12 p.m., low 3:34 and 3:38 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), Deale, Md. (4 1/2), Colonial Beach (6), Norfolk (1 1/2), Virginia Beach (1), Solomons Island (6 1/2), Point Lookout (7).

The National Weather Service forecasts the Potomac River stage at Little Falls should be near 4.2 feet today.

Washington data at 8 p.m. (EDT) yesterday: Highest temperature since 8 a.m. yesterday, 37 degrees at 2:45 p.m. Lowest temperature since midnight, 25 degreed at 5:45 a.m. Excess of temperature since Nov. 1, 123 degrees. Excess of temperature since Jan. 1, 546 degrees. Record high temperature for today, 74 degrees in 1973. Record low temperature for today, 15 degrees in 1930. Relative humidity: Maximum, 52 percent at 6 a.m.; Minimum, 37 per cent at 3 p.m. Excess of precipitaion since Nov, 1, 1.33 inches. Deficiency of precipitation since Jan. 1, 5.15 inches. Highest observed wind since 7 a.m. 12 miles per hour from the northwest at 10:53 a.m. Peak gust since 7 a.m., 17 miles per hour from the northwest at 9:31 a.m. Local Temp., Humudity(TABLE) Time(COLUMN)T(COLUMN)H 12 m/night(COLUMN)31(COLUMN)38 1 a.m.(COLUMN)30(COLUMN)39 2 a.m.(COLUMN)30(COLUMN)39 3 a.m.(COLUMN)30(COLUMN)39 4 a.m.(COLUMN)28(COLUMN)42 5 a.m.(COLUMN)26(COLUMN)50 6 a.m.(COLUMN)26(COLUMN)52 7 a.m.(COLUMN)25(COLUMN)52 8 a.m.(COLUMN)27(COLUMN)51 9 a.m.(COLUMN)31(COLUMN)43 10 a.m.(COLUMN)33(COLUMN)40 11 a.m.(COLUMN)33(COLUMN)40 12 noon(COLUMN)34(COLUMN)38 1 p.m.(COLUMN)35(COLUMN)38 2 p.m.(COLUMN)36(COLUMN)38 3 p.m.(COLUMN)37(COLUMN)37 4 p.m.(COLUMN)36(COLUMN)40 5 p.m.(COLUMN)36(COLUMN)58 6 p.m.(COLUMN)31(COLUMN)51 7 p.m.(COLUMN)37(COLUMN)44(END TABLE) Temperatures ending 8 a.m. (EST) yesterday:(TABLE) City(COLUMN)H.(COLUMN)L. Albany(COLUMN)37(COLUMN)19 Albuquerque(COLUMN)70(COLUMN)38 Amarillp(COLUMN)78(COLUMN)41 Anchorage(COLUMN)21(COLUMN)15 Ashville(COLUMN)35(COLUMN)17 Atlanta(COLUMN)43(COLUMN)26 Atlantic City(COLUMN)55(COLUMN)28 Austin(COLUMN)71(COLUMN)61 Baltimore(COLUMN)41(COLUMN)26 Billings(COLUMN)48(COLUMN)28 Birmingham(COLUMN)26(COLUMN)30 Bismarck(COLUMN)28(COLUMN)08 Boise(COLUMN)50(COLUMN)35 Boston(COLUMN)57(COLUMN)30 Brownsville(COLUMN)79(COLUMN)64 Buffalo(COLUMN)37(COLUMN)19 Burlington(COLUMN)40(COLUMN)14 Casper(COLUMN)53(COLUMN)24 Charleston, S.C.(COLUMN)46(COLUMN)36 Charleston, W Va.(COLUMN)33(COLUMN)17 Charlotte(COLUMN)45(COLUMN)24 Cheynne(COLUMN)52(COLUMN)24 Chicago(COLUMN)19(COLUMN)11 Cincinnati(COLUMN)23(COLUMN)13 Cleveland(COLUMN)30(COLUMN)10 Columbia S.C.(COLUMN)52(COLUMN)22 Columbus(COLUMN)25(COLUMN)15 Dal. Ft. Worth(COLUMN)65(COLUMN)54 Dayton(COLUMN)25(COLUMN)15 Denver(COLUMN)65(COLUMN)28 Des Mcines(COLUMN)20(COLUMN)16 Detroit(COLUMN)24(COLUMN)13 Duluth(COLUMN)13(COLUMN)07 El Paso(COLUMN)77(COLUMN)55 Fairbanks(COLUMN)-05(COLUMN)-25 Fargo(COLUMN)12(COLUMN)10 Flagstaff(COLUMN)70(COLUMN)30 Great Falls(COLUMN)47(COLUMN)25 Hartford(COLUMN)47(COLUMN)25 helena(COLUMN)55(COLUMN)20 Honolulu(COLUMN)86(COLUMN)72 Houston(COLUMN)66(COLUMN)62 Indianapolis(COLUMN)26(COLUMN)20 Jackson, Miss.(COLUMN)46(COLUMN)31 Jacksonville(COLUMN)60(COLUMN)31 Juneau(COLUMN)31(COLUMN)30 Kansas City(COLUMN)28(COLUMN)25 Las Vegas(COLUMN)75(COLUMN)48 Little Rock(COLUMN)36(COLUMN)34 Los Angeles(COLUMN)86(COLUMN)61 Loulsville(COLUMN)28(COLUMN)22 Memphis(COLUMN)26(COLUMN)33 Miami Beach(COLUMN)72(COLUMN)55 Midland-Odessa(COLUMN)81(COLUMN)51 Milwaukee(COLUMN)14(COLUMN)07 Mpls.-St.Paul(COLUMN)12(COLUMN)09 Nashville(COLUMN)28(COLUMN)27 New Orleans(COLUMN)56(COLUMN)44 New York(COLUMN)53(COLUMN)29 Norfolk(COLUMN)45(COLUMN)27 North Platte(COLUMN)43(COLUMN)25 Oklahoma City(COLUMN)64(COLUMN)43 Omaha(COLUMN)31(COLUMN)21 Orlando(COLUMN)67(COLUMN)41 Philadelphia(COLUMN)37(COLUMN)25 Phoenix(COLUMN)84(COLUMN)54 Pittsburgh(COLUMN)33(COLUMN)15 Portland, Me.(COLUMN)48(COLUMN)17 Portland, Ore.(COLUMN)56(COLUMN)43 Providence(COLUMN)54(COLUMN)25 Raleigh(COLUMN)42(COLUMN)19 Rapid City(COLUMN)50(COLUMN)28 Reno(COLUMN)65(COLUMN)34 Richmond(COLUMN)43(COLUMN)17 St.Louis$28(COLUMN)21 St.Prbg.-Tampa(COLUMN)67(COLUMN)41 Salt Lake City(COLUMN)58(COLUMN)33 San Antonio(COLUMN)72(COLUMN)54 San Diego(COLUMN)75(COLUMN)59 San Francisco(COLUMN)69(COLUMN)51 San Juan(COLUMN)86(COLUMN)75 St.Ste.Marie(COLUMN)17(COLUMN)02 Seattle(COLUMN)52(COLUMN)46 Shreveport(COLUMN)60(COLUMN)45 Sioux Falls(COLUMN)22(COLUMN)17 Spokane(COLUMN)46(COLUMN)35 Syracuse(COLUMN)37(COLUMN)20 Topeka(COLUMN)29(COLUMN)28 Tuckson(COLUMN)82(COLUMN)51 Tulsa(COLUMN)50(COLUMN)36 Washington(COLUMN)43(COLUMN)25 Wichita(COLUMN)44(COLUMN)36(END TABLE) Temperatures Abroad Yesterday(TABLE) City(COLUMN)Weather(COLUMN)Time(COLUMN)Temp. Aberdeen(COLUMN)Clear(COLUMN)1 p.m.(COLUMN)Amsterdam Clear(COLUMN)1 p.m.(COLUMN)36 Ankara(COLUMN)Pt.cidy(COLUMN)3 p.m.(COLUMN)63 Athens(COLUMN)cloudy(COLUMN)2 p.kland(COLUMN)pt. cidy midnight(COLUMN)Berlin(COLUMN)cloudy(COLUMN)1 p.m. Birmingham(COLUMN)clear(COLUMN)1 p.m.(COLUMN)Brussels pt. cidy(COLUMN)1 p.m.(COLUMN)Casablanca(COLUMN)cloudy noon(COLUMN)61 Copenhagen(COLUMN)clear(COLUMN)1 p.m.(COLUMN)30 Dublia(COLUMN)pt.cidy(COLUMN)1 p.m.(COLUMN)43 Geneva(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)36 Hong Kong(COLUMN)pt.cidy(COLUMN)8 p.m.(COLUMN)70 Lisbon(COLUMN)cloudy(COLUMN)noon(COLUMN)57 London(COLUMN)clear(COLUMN)1 p.m.(COLUMN)41 Madrid(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)41 Malta(COLUMN)pt.cidy(COLUMN)1 p.m.(COLUMN)59 Manila(COLUMN)clear(COLUMN)8 p.m.(COLUMN)82 Moscow(COLUMN)snow(COLUMN)3 p.m.(COLUMN)34 New Delhi(COLUMN)cloudy(COLUMN)5 p.m.(COLUMN)72 Nice(COLUMN)clear(COLUMN)1 p.m.(COLUMN)52 Oslo(COLUMN)pt.cidy(COLUMN)1 p.m.(COLUMN)27 Paris(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)33 peking(COLUMN)clear(COLUMN)1 p.m.(COLUMN)28 Rome(COLUMN)clear(COLUMN)8 p.m.(COLUMN)54 Saigon(COLUMN)clear(COLUMN)8 p.m.(COLUMN)81 Sofia(COLUMN)pt.cidy(COLUMN)2 p.m.(COLUMN)50 Stockholm(COLUMN)snow(COLUMN)1 p.m.(COLUMN)28 Sydney(COLUMN)lear(COLUMN)10 p.m.(COLUMN)68 Tel Aviv(COLUMN)clear(COLUMN)2 p.m.(COLUMN)82 Tokyo(COLUMN)clear(COLUMN)9 p.m.(COLUMN)57 Tunis(COLUMN)pt cidy(COLUMN)1 p.m.(COLUMN)57 Vienna(COLUMN)rain(COLUMN)1 p.m.(COLUMN)37 Warsaw(COLUMN)cloudy(COLUMN)1 p.m.(COLUMN)36(END TABLE) Temperatures (Western Hemisphere)(TABLE) City(COLUMN)Weather(COLUMN)High(COLUMN)Low Acapulco(COLUMN)fair(COLUMN)90(COLUMN)75 Barbacos(COLUMN)Cloudy(COLUMN)86(COLUMN)74 Bermuda(COLUMN)cloudy(COLUMN)76(COLUMN)69 Calgary(COLUMN)pt.cidy(COLUMN)37(COLUMN)21 Culiacan(COLUMN)fair(COLUMN)72(COLUMN)40 Edmonton(COLUMN)cloudy(COLUMN)28(COLUMN)14 Havana(COLUMN)clear(COLUMN)86(COLUMN)75 Kingston(COLUMN)cloudy(COLUMN)86(COLUMN)75 Montego Bay(COLUMN)Cloudy(COLUMN)82(COLUMN)73 Mexico City(COLUMN)haze(COLUMN)73(COLUMN)44 Monterry(COLUMN)clear(COLUMN)75(COLUMN)51 Montreal(COLUMN)pt.cidy(COLUMN)34(COLUMN)10 Nassau(COLUMN)fair(COLUMN)79(COLUMN)51 Ottawa(COLUMN)clear(COLUMN)28(COLUMN)7 Regina(COLUMN)pt.cidy(COLUMN)18(COLUMN)7 St.kitts(COLUMN)Cloudy(COLUMN)82(COLUMN)74 St.Thomas(COLUMN)cloudy(COLUMN)86(COLUMN)76 Toronto(COLUMN)clear(COLUMN)34(COLUMN)14 Vancouver(COLUMN)rain(COLUMN)48(COLUMN)41 Veracruz(COLUMN)pt.cidy(COLUMN)85(COLUMN)64 Winnipeg(COLUMN)cler(COLUMN)9(COLUMN)3(END TABLE).