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Arlington, Virginia 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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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 Sep 18, 2026 |
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Tonight
 Mostly Cloudy
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Saturday
 Partly Sunny
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Saturday Night
 Mostly Cloudy
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Sunday
 Partly Sunny then Chance Showers
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Sunday Night
 Showers Likely
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Monday
 Chance Showers
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Monday Night
 Chance Showers
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Tuesday
 Showers Likely
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Tuesday Night
 Showers Likely
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| Lo 64 °F |
Hi 79 °F |
Lo 68 °F |
Hi 84 °F |
Lo 68 °F |
Hi 76 °F |
Lo 64 °F |
Hi 67 °F |
Lo 59 °F |
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Tonight
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Mostly cloudy, with a low around 64. Northeast wind 7 to 9 mph. |
Saturday
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Partly sunny, with a high near 79. Northeast wind 7 to 9 mph. |
Saturday Night
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Mostly cloudy, with a low around 68. East wind 6 to 8 mph. |
Sunday
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A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 84. South wind 7 to 13 mph. Chance of precipitation is 40%. |
Sunday Night
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A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 68. Southwest wind around 6 mph becoming north after midnight. Chance of precipitation is 60%. |
Monday
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A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 40%. |
Monday Night
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A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 50%. |
Tuesday
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Showers likely, mainly after 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%. |
Tuesday Night
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Showers likely, mainly before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%. |
Wednesday
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A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 50%. |
Wednesday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%. |
Thursday
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A chance of showers and thunderstorms. Mostly cloudy, with a high near 65. Chance of precipitation is 40%. |
Thursday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 30%. |
Friday
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A slight chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 20%. |
Forecast from NOAA-NWS
for Fort Myer VA.
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Weather Forecast Discussion
942
FXUS61 KLWX 181852
AFDLWX
Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
252 PM EDT Fri Sep 18 2026
.WHAT HAS CHANGED...
All sections were updated.
&&
.KEY MESSAGES...
- 1) Cooler and drier conditions are forecast for Saturday, before
showers and thunderstorms return Sunday.
- 2) Daily chances for showers persists into next week
along with cooler temperatures.
&&
.DISCUSSION...
KEY MESSAGE 1...Cooler and drier conditions are forecast for Saturday,
before showers and thunderstorms return Sunday.
Cdfnt will continue to push south of the area this afternoon
with isolated light showers ending from north to south, but
could linger through mid evening in central VA. Surface ridging
builds in for Saturday supporting fair weather conditions. Warm
air and moisture advection atop a shallow cool layer will
support scattered showers across the northern half of the fcst
area late Sat night into Sunday. Then, additional showers and
thunderstorms are expected Sunday afternoon and evening along a
retreating warm front. The front will sink south Sunday night as
low pressure passes by and high pressure starts building south
again.
KEY MESSAGE 2...Daily chances for showers persists into next week
along with cooler temperatures.
Upper-level ridging breaks down early next week, with multiple
shortwave disurbances moving across the Mid-Atlantic in the days
following. Mid-level moisture brought in from the south will
continue overhead as winds flow northeasterly. As a result, daily
showers remain a possibility into late next week as these
disturbances slowly track across the region. Temperatures drop
on Tuesday in the wake of one of these disturbances, with highs
generally ranging in the upper 50s and 60s. This cooler- than-
average weather persists at least through midweek as nearby
disturbances continue to bring rain showers to the area. Towards
the bay & coastlines, wind gusts could remain elevated mid-to-
late week as these disturbances begin to track offshore.
Overall, coastal flooding could become something to watch out
for next week as these elevated winds combined with persistent
rain stretches on.
&&
.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
Clouds expected to hang around tonight into Sat morning, but
cigs should remain VFR. Clearing is expected Sat afternoon,
before low clouds redevelop again toward Sunday morning. Low
clouds/overcask skies will remain prevalent early next week.
Winds generally flow north to northeasterly between Tuesday and
Wednesday. Showers and thunderstorms are possible each day,
potentially bringing intermittent sub-VFR conditions across most
terminals. Wind gusts gradually increase as the week continues.
&&
.MARINE...
SCAs were issued for late tonight into Sat morning as winds
strengthen behind a northerly surge. Winds diminish Sat
afternoon, but pick up again across the southern waters on
easterly flow.
Winds begin to increase starting Monday afternoon and could
potentially approach gale conditions between Tuesday night and
Wednesday as a trough lingers near the waters. Showers & possibly a
few thunderstorms are possible during this period as the trough
slowly moves out of the region. Depending on how slowly the trough
tracks, winds could stay elevated into late next week. Winds
generally flow northeasterly.
&&
.TIDES/COASTAL FLOODING...
As onshore flow strengthens next week, expect water levels to
rise each day with minor coastal flooding becoming likely on
Monday and possibly reaching moderate category by mid next week.
&&
.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory from 10 PM this evening to 10 AM EDT
Saturday for ANZ531>533-539>541.
Small Craft Advisory from 5 AM to 1 PM EDT Saturday for ANZ534-
537-543.
Small Craft Advisory from 5 PM Saturday to 1 AM EDT Sunday for
ANZ534-537-543.
&&
$$
DISCUSSION...LFR/KJP/SRT
AVIATION...LFR/KJP/SRT
MARINE...LFR/KJP/SRT
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