TTCM () > WeatherThursday, September 28, 2023W1 W2 W3 W4 238% 64°F
Washington, D.C., WeatherSunrise: 7:01 (W1: 50%); Solar Noon: 12:58 (W3: 49%); Sunset: 6:56 (W5: 47%)

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Last 72 Hours: ObservationsCurrently: 64°F  — USNO Clear Sky ChartHeavens-Above

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                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
  MAXIMUM         71   1:56 PM  95    1998  77     -6       75
  MINIMUM         59   6:48 AM  40    1879  60     -1       56
  AVERAGE         65                        68     -3       66

  TODAY            0.00          3.17 1985   0.13  -0.13     0.00
  MONTH TO DATE    3.60                      3.53   0.07     1.95
  SINCE SEP 1      3.60                      3.53   0.07     1.95
  SINCE JAN 1     26.09                     31.44  -5.35    33.90

T: Month, Season, Year
P: Month, Season, Year
NWS Radar (National Mosaic, Loop)
NWS Hourly Forecast Graph; Table
NWS Forecast (Print, Text); Discussion
NWS Hazardous Weather Outlook

Coastal Flood Advisory
Hazardous Weather Outlook

Tonight: Patchy drizzle with scattered showers. Cloudy, with a low around 61°. North wind around 8 mph. Chance of precipitation is 40%.

Friday: Patchy drizzle with scattered showers before 2pm, then isolated showers after 2pm. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 69°. North wind 7 to 9 mph. Chance of precipitation is 30%.

Friday Night: Isolated showers before 2am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60°. North wind around 8 mph. Chance of precipitation is 20%.

Saturday: Partly sunny, with a high near 74°. North wind 9 to 11 mph.

Saturday Night: Partly cloudy, with a low around 59°. North wind 7 to 9 mph.

Sunday: Sunny, with a high near 79°.

Sunday Night: Mostly clear, with a low around 60°.

Monday: Sunny, with a high near 81°.

Monday Night: Mostly clear, with a low around 61°.

Tuesday: Sunny, with a high near 81°.

Tuesday Night: Mostly clear, with a low around 59°.

Wednesday: Sunny, with a high near 79°.

Wednesday Night: Mostly clear, with a low around 58°.

Thursday: Mostly sunny, with a high near 77°.

Baltimore/Washington Forecast Office

Latest Forecast

Time and Date: Today, Sun-Moon, Climate-ForecastLight

ISS SightingsSpace Dashboard

Launch Calendars: NASA, KSC, 2019, SFN, SFI, RLL, SpaceX

Weather Prediction CenterStorm Prediction CenterClimate Prediction Center

Continental U.S. (CONUS) Surface Analysis

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
243 PM EDT Thu Sep 28 2023

High pressure remains wedged along the eastern slopes of the
Appalachians today while an upper level trough of low pressure
approaches from the Great Lakes region. This trough will bring
increasing clouds and shower chances through Friday. The trough will
push offshore for the start of the weekend as upper level ridging
aloft and high pressure builds back into the region. Sunny skies,
warmer temperatures, and dry conditions are expected Saturday
through the middle of next week.

Synoptically, not much has changed with a coastal front/inverted
trough lingering offshore and a well defined trough/closed upper
level low slowly drifting east toward the region. This system will
be in it`s weakening phase as it progresses eastward late tonight
into Friday. With that said, expect the continuation of increased
cloud cover, below normal temperatures, and shower chances through
the remainder of the workweek.

For today, expect a few breaks of sunshine across central VA and
western MD where a bit more dry air remains in the low/mid levels
due to northerly flow. Elsewhere, low/mid stratus continues to
expand as onshore flow increases with high pressure remaining wedged
along the eastern Appalachians. This trend will continue into the
evening and overnight hours with low level ascent/weak warm air
advection increasing as the upper level trough advances toward the
region. With that said, expect light showers and areas of drizzle
working in from east to west later this afternoon and into the
evening hours. Highest confidence for precipitation appears to be
along and east of the Blue Ridge compared to areas further west
where drier air may hold on longer. Either way coverage will be
fairly isolated to scattered with more widespread precipitation
confined to areas east of US-15 and back across central/northeast
MD. Chances for light showers or drizzle will continue through the
overnight into Friday morning as the trough inches closer to the
region. Rainfall amounts will remain less than a tenth of an inch
for most locations with locally higher totals across central and
northeast MD where a convective element could set up.

Temperatures will continue to run 5 to 10 degrees below average for
this time of year. WIth just a little bit of sunshine highs will
push into the mid to upper 60s and low 70s. Overnight lows under the
clouds, fog, and drizzle will fall into the mid to upper 50s and low

High pressure still remains wedged along the eastern slopes of the
Appalachians Friday as the aforementioned upper level trough slowly
progresses east. This will lead to continued cloudiness along with
increased shower chances across the region. Low clouds and drizzle
will start the day for many east of the Blue Ridge with isolated to
scattered showers during the afternoon, especially in areas east of
US-15. Rain amounts will remain less than a tenth of inch for most
locations with some seeing nothing at all.

The aforementioned upper level trough kicks east Saturday morning
while the cool air wedge remains with onshore northeasterly flow
continuing. It`s not until late Saturday morning into Saturday
afternoon when the wedge erodes with winds turning back to the north
and northwesterly direction. This will allow drier air to filter in
as we sit on the eastern periphery of a building upper level ridge
aloft and area of surface high pressure moving in from Midwest. Once
again low clouds and drizzle will favor areas east of Blue Ridge
with patch fog and clearing further west of the I-81 corridor.
Sunshine should return for all by Saturday afternoon and evening as
ample dry air advects in.

With the added clouds and showers expect highs to remain below
average Friday before getting close to normal Saturday. High
temperatures will push into the mid to upper 60s and low 70s Friday
afternoon before pushing into the low to mid 70s Saturday as
sunshine returns/northeast flow ceases. Overnight lows will range
from the upper 40s and low to mid 50s in the west to mid to upper
50s east of the Blue Ridge.

A strong upper level ridge located over the eastern half of the
CONUS will persist throughout the duration of the long term period.
With high pressure located at the surface, the forecast remains dry
through at least midweek. Temperatures will be slightly above normal
with highs in the 70s for most. Urban areas could get into the low
80s with higher elevations staying in the upper 60s. Overnight low
temperatures will be in the 50s and 60s for most.

Latest Discussion

Climate — Genesis 8:22
While the earth remains, seedtime and harvest, cold and heat, winter and summer, and day and night shall not cease.

Sea Level — Job 38:8-11
Who shut in the sea with doors, when it burst forth and issued from the womb; when I made the clouds its garment, and thick darkness its swaddling band; when I fixed My limit for it, and set bars and doors; when I said, ‘This far you may come, but no farther, and here your proud waves must stop!’

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