Tonight...Mostly clear. Patchy frost in far western portions of the san fernando valley and northeast san gabriel valley. Lows in the 30s to mid 40s.

Christmas Day...Mostly sunny. Patchy frost in far western portions of the san fernando valley and northeast san gabriel valley early. Highs in the 60s.

Friday Night...Mostly clear. Lows in the mid 30 to mid 40s.

Saturday...Partly cloudy. Highs in the upper 50s to mid 60s.

Saturday Night...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the upper 30s to mid 40s.

Sunday...Mostly cloudy with a 20 percent chance of rain. Highs in the mid 50s to lower 60s.

Sunday Night...Mostly cloudy with a 30 percent chance of rain. Lows in the upper 30s to mid 40s.

Monday...Mostly cloudy with a 20 percent chance of showers. Highs in the mid 50s to lower 60s.

Monday Night...Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the upper 50s to mid 60s.

Tuesday...Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the upper 50s to mid 60s.

Wednesday...Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the upper 50s to mid 60s.

Thursday...Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the upper 50s to mid 60s.