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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 Jul 10, 2026
 
This
Afternoon
This Afternoon: Scattered showers and thunderstorms.  Cloudy, with a high near 87. West wind around 8 mph.  Chance of precipitation is 40%.
Scattered
Showers
Tonight

Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 71. Light and variable wind.
Decreasing
Clouds
Saturday

Saturday: A chance of showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 86. North wind 3 to 7 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
Saturday
Night
Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm.  Mostly cloudy, with a low around 69. Light northeast wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely then
Mostly Cloudy
Sunday

Sunday: Partly sunny, with a high near 84. East wind 3 to 7 mph.
Partly Sunny

Sunday
Night
Sunday Night: Mostly cloudy, with a low around 67.
Mostly Cloudy

Monday

Monday: Mostly sunny, with a high near 84.
Mostly Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 66.
Mostly Clear

Tuesday

Tuesday: Sunny, with a high near 90.
Sunny

Hi 87 °F Lo 71 °F Hi 86 °F Lo 69 °F Hi 84 °F Lo 67 °F Hi 84 °F Lo 66 °F Hi 90 °F

Hazardous Weather Outlook
 

This Afternoon
 
Scattered showers and thunderstorms. Cloudy, with a high near 87. West wind around 8 mph. Chance of precipitation is 40%.
Tonight
 
Cloudy, then gradually becoming partly cloudy, with a low around 71. Light and variable wind.
Saturday
 
A chance of showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. North wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Mostly cloudy, with a low around 69. Light northeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
 
Partly sunny, with a high near 84. East wind 3 to 7 mph.
Sunday Night
 
Mostly cloudy, with a low around 67.
Monday
 
Mostly sunny, with a high near 84.
Monday Night
 
Mostly clear, with a low around 66.
Tuesday
 
Sunny, with a high near 90.
Tuesday Night
 
Clear, with a low around 72.
Wednesday
 
Sunny and hot, with a high near 97.
Wednesday Night
 
Mostly clear, with a low around 76.
Thursday
 
Sunny, with a high near 95.
Thursday Night
 
Partly cloudy, with a low around 75.
Friday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.

 

Forecast from NOAA-NWS for Fort Myer VA.

Weather Forecast Discussion
628
FXUS61 KLWX 101918
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
318 PM EDT Fri Jul 10 2026

.WHAT HAS CHANGED...
All sections were updated.

&&

.KEY MESSAGES...
- Heavy showers and strong thunderstorms, a few of which may
  produce damaging winds and flash flooding, are possible
  Saturday afternoon and evening.

- Heat and humidity return for Wednesday through Saturday

&&

.DISCUSSION...

KEY MESSAGE 1...Heavy showers and strong thunderstorms, a few of which may
produce damaging winds and flash flooding, are possible Saturday afternoon
and evening.

KEY MESSAGE 1 DESCRIPTION...

Mid-high level overcast today has kept instability to a minimum
with only stratiform light rain expected for most places. Deep
convection over west central PA will try to make into northern
and northeast MD in the evening and may affect Baltimore metro
late, but likely isn`t going to be severe and neither flash
flood producing. Other convection along and south of I-64 may
affect areas south of Charlottesville this afternoon and
evening, otherwise most areas around Washington DC will remain
in between these main two potential areas of convection.
Overall, we are looking at a much better situation today than
compared to yesterday with mainly a mid-high level overcast and
sct-nmrs light showers.

Saturday...Tomorrow looks like a much more active day as a weak
cold front makes into the area and an upper shortwave-trough
moves across the area during peak heating. Expect thunderstorm
clusters to develop with very high coverage, but the coverage
of severe t-storms and instances of flooding still remain
uncertain. However, sporadic occurrences of damaging winds and
perhaps an instance of flash flooding or two are possible.

KEY MESSAGE 2...Heat and humidity return for Wednesday through
Saturday.

KEY MESSAGE 2 DESCRIPTION...
Surface high pressure will bring dry conditions with lower humidity
for Monday and Tuesday. However, the subtropical ridge will build
over the central CONUS Tuesday and it will spread east toward the
Mid-Atlantic for Wednesday through Friday. The center of the ridge
will be off to the west, but there will be enough subsidence for a
return of hot conditions. Heat indices  around 100 degrees with
temperatures well into the 90s are most likely for the valleys and
urban areas. It may even turn out a bit hotter with respect to heat
indices depending on what dewpoints will mix down to around peak
heating each day. It does not appear that it will be as extreme as
it was earlier in the month, but still quite hot and humid for
Wednesday through the end of next week.

With the increased heat and humidity there may be some showers and
thunderstorms. A few of those storms can be strong, but confidence
is low at this time. Perhaps the best chance for storms will be
Friday where low-level moisture may be more prominent in response to
High pressure building over the Atlantic.

&&

.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...

Numerous light showers are still expected this afternoon into
early evening, but the risk of thunderstorms seems low except at
BWI and MTN. Saturday appears to have a much greater risk of
thunderstorms, which will likely cause some temporary flight
restrictions. Isolated severe storms and flash flooding are
possible Saturday afternoon and evening.

VFR conditions are most likely for Tuesday and Wednesday.

&&

.MARINE...

Light flow below 10 kt is expected through the weekend, but
t-storms Saturday may pose a risk of strong winds and frequent
lightning. SMWs may be required Saturday afternoon and evening.

A west to southwest flow is expected Tuesday and Wednesday. Winds
may gust around SCA criteria during this time since there will be a
gradient between high pressure to the south and west vs lower
pressure to the north and east.

&&

.TIDES/COASTAL FLOODING...
Elevated water levels will persist for the next couple of days
with minor coastal flooding becoming increasingly likely Monday
into Tuesday as southerly flow strengthens.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...Flood Watch until 10 PM EDT this evening for MDZ501-509-510.
VA...None.
WV...Flood Watch until 10 PM EDT this evening for WVZ503.
MARINE...None.

&&

$$

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






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