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Arlington, Virginia 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Fort Myer VA
National Weather Service Forecast for: Fort Myer VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 4:53 pm EDT Aug 9, 2026
 
Tonight

Tonight: Mostly clear, with a low around 74. Light southwest wind.
Mostly Clear

Monday

Monday: Scattered showers and thunderstorms after 2pm.  Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming southwest 5 to 9 mph in the afternoon.  Chance of precipitation is 30%.
Sunny then
Scattered
T-storms
Monday
Night
Monday Night: Scattered showers and thunderstorms before 11pm.  Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming light and variable  in the evening.  Chance of precipitation is 40%.
Scattered
T-storms then
Partly Cloudy
Tuesday

Tuesday: Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 91. Northwest wind 3 to 8 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Scattered
Showers then
Showers
Likely
Tuesday
Night
Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am.  Mostly cloudy, with a low around 72. West wind 3 to 5 mph.  Chance of precipitation is 60%.
Showers
Likely

Wednesday

Wednesday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 89. Chance of precipitation is 30%.
Mostly Sunny
then Chance
T-storms
Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Chance
T-storms then
Chance
Showers
Thursday

Thursday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Mostly Sunny
then Chance
Showers
Thursday
Night
Thursday Night: A chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Chance
Showers then
Partly Cloudy
Lo 74 °F Hi 95 °F Lo 76 °F Hi 91 °F Lo 72 °F Hi 89 °F Lo 72 °F Hi 90 °F Lo 71 °F

 

Tonight
 
Mostly clear, with a low around 74. Light southwest wind.
Monday
 
Scattered showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
 
Scattered showers and thunderstorms before 11pm. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 40%.
Tuesday
 
Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Northwest wind 3 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 72. West wind 3 to 5 mph. Chance of precipitation is 60%.
Wednesday
 
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 30%.
Wednesday Night
 
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Thursday
 
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Thursday Night
 
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
 
A slight chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Friday Night
 
A slight chance of showers. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Saturday
 
A slight chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Saturday Night
 
A slight chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Sunday
 
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Fort Myer VA.

Weather Forecast Discussion
314
FXUS61 KLWX 091923
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
323 PM EDT Sun Aug 9 2026

.WHAT HAS CHANGED...
Slight Risk of severe weather introduced for western Maryland
for Monday.

&&

.KEY MESSAGES...
- Hot and humid conditions will persist through Thursday with
  daily of risk of showers and thunderstorms, some of which
  could be severe.

- Cooler conditions are expected for the end of the week,
  although showers and thunderstorms remain possible at times.

&&

.DISCUSSION...

KEY MESSAGE 1...Hot and humid conditions will persist through
Thursday with daily of risk of showers and thunderstorms, some
of which, could be severe.

KEY MESSAGE 1 DESCRIPTION...

A hot and humid air mass will persist over the mid-Atlantic
region between subtropical ridge over the south central U.S.
and an active northern stream jet. As a result of this active
northern stream flow, numerous shortwave-troughs are fcst to
traverse the area during much of the work keeping the risk of
daily showers and thunderstorms, some of which, could be severe.

Tue and Wed look like the most active days of the week due to
stronger height falls and stronger mid-level flow with Tue
looking the day with greater instability and more enhanced
severe wx risk. As always, exact timing and location of severe
weather will depend on location`s of outflow boundaries from the
previous day.


KEY MESSAGE 2...Cooler conditions are expected for the end of the
week, although showers and thunderstorms remain possible at times.


KEY MESSAGE 2 DESCRIPTION...

The southward progress of the cold front becomes more uncertain for
the end of the week, although it likely drifts south with time. Both
physics-based and AI guidance shows lower severe weather chances
Thursday with declining instability. Showers and thunderstorms could
remain possible though with the front nearby. For Friday and
Saturday in particular, there may be a better chance of drying out
as high pressure builds to the north. This will also bring a
corresponding cool down in temperatures (potentially a bit below
normal) along with lower humidity. The front won`t be too far to the
south however, and will likely attempt to lift north this weekend or
early next week as a low pressure system moves into the Great Lakes.
Thus, some low end PoPs remain in the forecast each day through the
end of the forecast period.

&&

.AVIATION /18Z SUNDAY THROUGH FRIDAY/...

Fair weather today. Sct-nmrs afternoon and early evening
thunderstorms Mon-Wed with temporary flight restrictions
possible.

Relatively lower, but still existent, shower and thunderstorm
chances will continue Thursday and Friday (mainly afternoon/evening)
as a cold front gradually pushes south of the area.

&&

.MARINE...

Scattered mainly afternoon and evening thunderstorms which may
cause strong wind gusts. SMWs may be required Mon through Wed.

Wind speed and direction are a bit uncertain Thursday and Friday as
a cold front gradually pushes through the area. While winds appear
to be mostly sub-SCA at this time, there could be an enhanced
northwesterly surge once the front does push through. Afternoon and
evening thunderstorms remain possible until the front pushes south,
but the risk of strong/severe storms is lower compared to earlier in
the week.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...None.

&&

$$

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






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