Conditions: Baltimore, Maryland, 12/18/2024 12:00:04 pm
Temperature

53°

Mostly Cloudy

33°

Dew Point
Relative Humidity

46%

Feels Like

53°

Wind (VRB)

5mph

Air Pressure

30.15

Sun
Sun Rise

07:21 AM

Sun Set

04:46 PM

Day Length

09:25 Hours

Difference

0 min 11 sec loss

Moon
Moon Rise

08:15 PM

Moon Set

10:21 AM

Next: Last Quarter

Dec 22,2024

Moon Phase

Waning Gibbous

Climate
Average Low

27°

44°

Average High
Record Low


(1919)

72°


(2006)
Record High
Conditions

December 18 Rain Later Today Then Much Colder Into The Weekend

Maryland Weather
climate data
rain timeline
Winter Weather
Forecast

December 18, 2024

Wednesday Morning Report

Temperatures are already cooling down after reaching the mid-60s yesterday.  Today will still be mild, with rain arriving in the mountains this afternoon and evening across metro areas.

Behind this system, much colder air will spill in for a few days. The core of the cold will arrive this weekend and bottom out on Monday morning. Then, a slight warming trend begins on Christmas.

Local Morning Temperatures

Not too cold, but not as warm as yesterday.

December 18 weather temperatures Wednesday morning

 

Morning Surface Weather

This complex storm setup is the pattern changer:

The Ohio Valley is experiencing heavy rain and thunderstorms, accompanied by a cold front. That Low Pressure will cross our region this evening.

To the north of the Great Lakes is a Clipper with the much colder air filling in behind it.

December 18 weather Wednesday morning storm

 

LIVE RADAR WIDGET

Radar Simulation Forecast:
HRRR Model: Noon to 9 PM

Rain in the mountains sooner will end with brief snow in Garrett County.

Then rain enters metro areas between sunset and midnight.

December 18 weather radar forecast rain snow

3 PM Snapshot

Rain arrives in the Western and Northern suburbs.

December 18 weather radar forecast rain snow afternoon

3 PM Temperatures

December 18 weather temperatures Wednesday afternoon

 

Evening Snapshot

December 18 weather radar forecast rain snow evening

Potential Rainfall Total

December 18 weather forecast rainfall total

 

CLIMATE DATA: Baltimore

TODAY December 18

Sunrise at 7:21 AM

Sunset at 4:46 PM

Normal Low in Baltimore:  29ºF

Record 7ºF in 1919

Normal High in Baltimore: 47ºF

Record 72ºF 2006

 

Baltimore Drought Update

  • 7.22 inches BELOW AVERAGE rainfall since September 1st
  • 7.70 inches BELOW AVERAGE rainfall since January 1st

 

Thursday, December 19

Morning Temperatures

December 18 weather temperatures Thursday morning

 

Afternoon Temperatures

December 18 weather temperatures Thursday afternoon

 

WEEKEND BRIEF LOOK

Thursday to Saturday

A storm will develop well offshore, just out of our reach, and miss the upper-level energy to fully blossom. However, there is support to produce:

Snow showers and flurries on Friday and Saturday, then the core cold will be just dry by Sunday.

December 18 weather storm snow Friday

Snapshot Friday Evening

December 18 weather storm snow Friday

Sunday Morning Temperatures

Cold and unstable cold air will be flowing our way with snow showers.

December 18 weather temperatures Sunday morning

LONGER RANGE OUTLOOK

Jet Stream: Friday  To Christmas Eve

Expect the core of the cold air this weekend and then a shift to warmer air for the holiday week, Christmas to New Year.

December 18 weather jet stream forecast Christmas eve

 

7 Day Forecast

Cooling down with rain this evening, much colder to end the week.

Snow showers and flurries on Friday and Saturday.

Temps bottom out on Monday, then Christmas week will be warmer.

December 18 weather forecast 7 day Wednesday