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Weather for 20854 — Potomac, MD

Conditions and forecast for the exact centre of ZIP code 20854 (39.039, -77.192), not a nearby airport.

64°

Overcast

Feels like:
60°
Humidity:
69%
Wind:
12 mph
Dew point:
54°

Source updated: 12:27:11 AM · WeatherSignal checked: 12:27:11 AM

Source: Open-Meteo (national weather-service models)

Next 12 hours in 20854

12 AM

64°

20%

1 AM

63°

7%

2 AM

62°

6%

3 AM

61°

9%

4 AM

60°

17%

5 AM

59°

37%

6 AM

58°

24%

7 AM

57°

26%

8 AM

55°

29%

9 AM

53°

24%

10 AM

51°

18%

11 AM

49°

11%

7 day forecast for 20854

  • Today

    82° / 59°

    62% rain · 14 mph wind

  • Saturday, Oct 17

    60° / 42°

    37% rain · 18 mph wind

  • Sunday, Oct 18

    57° / 35°

    2% rain · 7 mph wind

  • Monday, Oct 19

    61° / 39°

    22% rain · 10 mph wind

  • Tuesday, Oct 20

    66° / 43°

    15% rain · 13 mph wind

  • Wednesday, Oct 21

    63° / 42°

    16% rain · 8 mph wind

  • Thursday, Oct 22

    60° / 38°

    16% rain · 9 mph wind

About ZIP code 20854

20854 covers Potomac in Maryland. Forecasts on this page are generated for the coordinates at the centre of the ZIP code, so small differences from a nearby city forecast are expected and usually correct.

Closest cities with full forecast pages: Washington (12 mi), Alexandria (18 mi), Baltimore (36 mi), Richmond (104 mi).

Nearby ZIP codes

Severe weather warnings are issued by the National Weather Service for counties and polygons that may not line up with ZIP code boundaries. Always follow official warnings for your exact address.

Planning your week in Potomac 20854, Maryland

  • The warmest afternoon ahead is today, reaching about 82°F.
  • The coldest night ahead dips to about 35°F.
  • Keep an umbrella within reach on today— that day carries the highest rain chances of the week.
  • The breeziest day looks like tomorrow, with sustained wind near 18 mph.

Common questions about Potomac 20854, Maryland weather

How accurate is the Potomac 20854, Maryland forecast?
The next 48 hours are usually reliable on temperature and sky cover, with timing that can shift by an hour or two. Days three and four are dependable for the overall pattern. Beyond that, treat the numbers as a planning direction rather than a promise — we label confidence on every day so you can judge for yourself.
What is the best day this week in Potomac 20854, Maryland?
Right now today shows the highest rain chances. Days outside that window look drier and are the safer bet for outdoor plans.
Where does this forecast come from?
Forecast values come from national weather model data, and official warnings come from the National Weather Service. We show the source and the last-updated time on every page, and we never invent a number the source did not publish — missing measurements are hidden, not guessed.
How often is this page updated?
The forecast refreshes whenever the source model publishes new data, typically several times a day. The freshness note near the top of the page shows exactly when the numbers you are looking at were issued.

More weather for Potomac 20854, Maryland

Weather in nearby cities

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