Expires:202512210900;;954297 FPUS51 KLWX 210558 ZFPLWX Zone Forecast Product National Weather Service Baltimore MD/Washington DC 1257 AM EST Sun Dec 21 2025 MDZ507-210900- Northwest Harford- Including the city of Jarrettsville 1257 AM EST Sun Dec 21 2025 .OVERNIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds around 10 mph with gusts up to 20 mph. .SUNDAY...Mostly sunny. Highs in the mid 40s. West winds 15 to 20 mph with gusts up to 35 mph. .SUNDAY NIGHT...Mostly clear. Lows in the lower 20s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening. .MONDAY...Mostly sunny. Highs in the upper 30s. West winds around 5 mph. .MONDAY NIGHT...Cloudy. A chance of rain and snow after midnight. Lows around 30. South winds 5 to 10 mph. Chance of precipitation 50 percent. .TUESDAY...Cloudy. Highs in the upper 40s. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 30s. .WEDNESDAY...Mostly sunny. Highs in the mid 40s. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain. Lows in the lower 30s. .CHRISTMAS DAY...Mostly cloudy with a 40 percent chance of rain. Highs in the mid 40s. .THURSDAY NIGHT...Cloudy with a 40 percent chance of rain. Lows in the upper 30s. .FRIDAY...Mostly cloudy with a 40 percent chance of rain. Highs in the lower 50s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 30s. .SATURDAY...Partly sunny. Highs in the lower 40s. $$