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Towson, Maryland 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Riderwood MD
National Weather Service Forecast for: Riderwood MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 9:53 pm EST Jan 14, 2026
 
Tonight

Tonight: A chance of rain, mainly between 11pm and 3am.  Cloudy, with a low around 28. Southwest wind 7 to 12 mph becoming west 13 to 18 mph after midnight. Winds could gust as high as 32 mph.  Chance of precipitation is 50%.
Chance Rain

Thursday

Thursday: Mostly sunny, with a high near 30. West wind 15 to 18 mph, with gusts as high as 30 mph.
Mostly Sunny

Thursday
Night
Thursday Night: Partly cloudy, with a low around 20. West wind 11 to 15 mph, with gusts as high as 29 mph.
Partly Cloudy

Friday

Friday: Mostly sunny, with a high near 34. West wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Mostly Sunny

Friday
Night
Friday Night: Mostly cloudy, with a low around 29. South wind 5 to 7 mph.
Mostly Cloudy

Saturday

Saturday: A chance of snow showers before 1pm, then a chance of rain and snow showers.  Partly sunny, with a high near 43. Chance of precipitation is 40%.
Chance Snow
Showers then
Chance
Rain/Snow
Saturday
Night
Saturday Night: Mostly cloudy, with a low around 24.
Mostly Cloudy

Sunday

Sunday: Partly sunny, with a high near 29.
Partly Sunny

Sunday
Night
Sunday Night: Mostly clear, with a low around 17.
Mostly Clear

Lo 28 °F Hi 30 °F Lo 20 °F Hi 34 °F Lo 29 °F Hi 43 °F Lo 24 °F Hi 29 °F Lo 17 °F

 

Tonight
 
A chance of rain, mainly between 11pm and 3am. Cloudy, with a low around 28. Southwest wind 7 to 12 mph becoming west 13 to 18 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 50%.
Thursday
 
Mostly sunny, with a high near 30. West wind 15 to 18 mph, with gusts as high as 30 mph.
Thursday Night
 
Partly cloudy, with a low around 20. West wind 11 to 15 mph, with gusts as high as 29 mph.
Friday
 
Mostly sunny, with a high near 34. West wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Friday Night
 
Mostly cloudy, with a low around 29. South wind 5 to 7 mph.
Saturday
 
A chance of snow showers before 1pm, then a chance of rain and snow showers. Partly sunny, with a high near 43. Chance of precipitation is 40%.
Saturday Night
 
Mostly cloudy, with a low around 24.
Sunday
 
Partly sunny, with a high near 29.
Sunday Night
 
Mostly clear, with a low around 17.
M.L.King Day
 
Sunny, with a high near 32.
Monday Night
 
Partly cloudy, with a low around 14.
Tuesday
 
Mostly sunny, with a high near 26.
Tuesday Night
 
Mostly clear, with a low around 13.
Wednesday
 
Mostly sunny, with a high near 31.

 

Forecast from NOAA-NWS for Riderwood MD.

Weather Forecast Discussion
009
FXUS61 KLWX 150222 AAA
AFDLWX

Area Forecast Discussion...UPDATED
National Weather Service Baltimore MD/Washington DC
922 PM EST Wed Jan 14 2026

.WHAT HAS CHANGED...
Nothing has changed.

&&

.KEY MESSAGES...
- 1) A strong cold front will bring accumulating snow to the
  mountains tonight into Thursday with cold and windy conditions
  expected for the rest of the week.

- 2) Below average temps with multiple disturbances this
  weekend through the middle of next week could bring frigid
  wind chills and wintry wx at times.

&&

.DISCUSSION...
KEY MESSAGE 1...A strong cold front will bring accumulating snow
to the mountains tonight with cold and windy conditions
expected at the end of the week.

Very light rain or showers across north central MD will end
with frontal passage later this evening east of the mountains,
while snow picks up across the Alleghenies.

An upper level trough digs across the midwest this evening,
pivoting towards the eastern CONUS tonight and into Thursday.
At the surface, the trough pushes a potent cold front across the
forecast area from west to east overnight.

In the Alleghenies, upslope enhancement as winds turn
northwesterly behind the front will allow for an uptick in
precipitation rates this evening as temperatures crash and the
snow starts to stick. A Winter Weather Advisory is in effect for
western Pendleton, western Grant, and western Garrett Counties,
where 3 to 5 inches of snow is expected through tomorrow
morning (with most of it falling the first half of tonight).

As temperatures rapidly drop behind the front, a flash freeze
appears possible in the Alleghenies. There may also be some
refreeze of residual moisture to the east of the mountains as
well late tonight as temperatures drop back below freezing.
Overnight lows are forecast to be in the 20s for most, with
teens and upper single digits in the mountains.

In the wake of the cold front, very cold and windy conditions
are expected through the day on Thursday. Conditions will dry out
for most, but a few snow showers will linger on and off through
the day in the Alleghenies. Any additional snow accumulations
there will be light (generally less than an inch).

High temperatures will be in the 20s to low 30s(teens in the
Alleghenies) on Thursday, although northwest winds gusting 25
to 35mph will yield wind chills in the teens to single digits
(negatives Alleghenies) in the afternoon. Cold Weather
Advisories remain in effect for western Pendleton and western
Grant Counties beginning late tonight through Thursday night.

KEY MESSAGE 2...Below average temps with multiple disturbances this
weekend through the middle of next week could bring frigid wind
chills and wintry wx at times.

Remaining unsettled Fri into Sat with sw energy and weak lows
bringing snow to the Alleghenies. Several inches of snow could
accumulate during this period, so will continue to monitor for
potential Winter Wx Advisory issuance. Further east Sat, snow or
light rain is possible depending on timing of precip wrt cold
frontal passage. Impacts appear limited at the lower elevations. For
temps, Sat is expected to be the warmest day of the wknd before the
cold front pushes through.

Uncertainty arises with potential system Sun into early Mon along
the east coast. Recent trends in guidance has been for this system
to dig a little more with potential low formation along eastern
seaboard, but lots of spread and with no blocking upstream
definitely a thread the needle scenario for accumulating snow.

Thereafter, frigid cold wind chills are expected with Cold Weather
headlines possible each night Sun through Wed in the Alleghenies and
Blue Ridge, and possible some lower elevations as well. Some
uncertainty with northern stream waves during this period as well,
but if there is precip, it is likely snow through the middle of next
week.

&&

.AVIATION /01Z THURSDAY THROUGH MONDAY/...

Very unlikely that any of the terminals will see any precip this
evening, except for a trace of rain at MRB in the next few
hours. In the wake of the cold front, winds shift to
northwesterly and gust 20 to 30 knots overnight. VFR conditions
continue Friday as southerly winds gust 15 to 20 knots in the
afternoon.


VFR conditions should largely prevail through Sun. However, there
are low probs (15-25%) of some rain or snow showers Sat as a cold
front moves through, and again Sun (10-20%) as another wave scoots
by. S to SW winds could gust to 20 kt Sat, then W winds could gust
to around 20 kt on Sun.

&&

.MARINE...
Winds increase to Small Craft Advisory criteria as a cold front
pushes over the waters overnight. Winds shift to northwesterly
and quickly increase with gusts around 30 knots expected.
Sporadic gusts to Gale force are possible with high end SCA
gusts expected. Small Craft Advisories are in effect for all
waters tonight through Thursday with a Gale Watch in effect for
Thursday afternoon.

Winds diminish Thursday night and into Friday with winds
shifting to southerly overnight. With southerly flow,
additional Small Craft Advisories may be needed over the open
waters Friday afternoon.

S`ly flow could bring SCA conditions Sat. A cold front will move
through late Sat with additional SCA conditions possible into
Sun.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...Small Craft Advisory until 6 PM EST Thursday for MDZ008.
     Gale Watch from Thursday evening through late Thursday night
     for MDZ008.
     Winter Weather Advisory until 10 AM EST Thursday for MDZ509.
VA...None.
WV...Winter Weather Advisory until 10 AM EST Thursday for WVZ501-
     505.
     Cold Weather Advisory from 3 AM Thursday to 7 AM EST Friday
     for WVZ501-505.
MARINE...Small Craft Advisory until 6 PM EST Thursday for ANZ530>543.
     Gale Watch from Thursday evening through late Thursday night
     for ANZ530>543.

&&

$$

DISCUSSION...LFR/KJP/CPB
AVIATION...LFR/KJP/CPB
MARINE...LFR/KJP/CPB
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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