Weather Potomac, Maryland long-term weather forecast

Long-term weather forecast for Potomac, Maryland for ten days.

Wednesday, Jan 14

48 / 32°F

0.00 in

5 mph

34 °F	28 °F	1 am
30 °F	25 °F	7 am
46 °F	43 °F	1 pm
46 °F	41 °F	7 pm

sunrise 7:26 am
sunset 5:10 pm

HOURLY

During the day morning clear, later morning overcast. The highest temperature 48 °F. At night clear. The lowest temperature 32 °F.

Interactive map weather Maryland, USA

GPS: 39.0182; -77.2086

altitude: 354 ft
local time:

PLACES IN THE AREA

Weather forecast Potomac, Maryland, Maryland, USA extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Wednesday 01/14/2026
1 AM	clear	34 °F 28 °F	0.0 in	6 fps 4 mph south-southwest	29.9 in	79 %	28 °F	0 %	0%	0%	0%	0%
7 AM	overcast	30 °F 25 °F	0.0 in	5 fps 3 mph south	29.8 in	85 %	27 °F	100 %	0%	0%	26%	100%
1 PM	overcast	46 °F 41 °F	0.0 in	8 fps 5 mph south-southeast	29.7 in	54 %	32 °F	100 %	0%	0%	100%	100%
7 PM	overcast	46 °F 41 °F	0.0 in	12 fps 8 mph south-southwest	29.6 in	62 %	32 °F	100 %	0%	1%	100%	84%
Thursday 01/15/2026
1 AM	clear	39 °F 36 °F	0.0 in	10 fps 7 mph southwest	29.6 in	81 %	34 °F	0 %	0%	0%	0%	0%
7 AM	overcast	32 °F 28 °F	0.00 in	6 fps 4 mph west-northwest	29.6 in	91 %	30 °F	94 %	0%	0%	94%	0%
1 PM	overcast	45 °F 39 °F	0.00 in	12 fps 9 mph west-northwest	29.6 in	55 %	30 °F	100 %	0%	31%	100%	0%
7 PM	overcast	36 °F 28 °F	0.0 in	18 fps 12 mph west-northwest	29.7 in	55 %	23 °F	99 %	0%	99%	0%	0%

Potomac, Maryland, Maryland, USA - information

State: Maryland, USA

GPS coordinates: 39.0182; -77.2086

Time zone: America / New York time difference in hours with time in NY is -6 hours

Population: 44 965
Altitude: 354 ft
The administrative part:

Maryland, Annapolis
Montgomery County, Rockville

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Weather Potomac, Maryland, Maryland, USA. Weather forecast Potomac, Maryland.

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Data source

Weather forecast for Potomac, Maryland is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

Weather with Meteobox for your website

Astronomical information Potomac, Maryland

data are always in the local time

Sun and light

Jan. 14, 2026

Sunrise:	Sunset:
7:26 am	5:10 pm
Noon:	Length of day:
12:17 pm	09:43
Start of civil twilight*:	End of civil twilight*:
6:56 am	5:39 pm
Start of nautical twilight*:	End of nautical twilight*:
6:24 am	6:11 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:52 am	6:43 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
01/14/2026 4:14 am	01/14/2026 1:21 pm
Next new moon:	Next full moon:
01/18/2026	02/01/2026