Weather Potomac, Maryland weekend

Weather forecast for Potomac, Maryland for this and next weekend.

Sunday during the day morning light rain, later morning overcast, in the afternoon cloudy, in the evening initially cloudy, later clear.

Saturday, Jan 10

66 / 36°F

0.03 in

8 mph

sunrise 7:27 am
sunset 5:05 pm

HOURLY

During the day overcast, later morning heavy rain, in the afternoon light rain. The highest temperature 66 °F. Total rainfall 0.65 in. At night light rain. The lowest temperature 36 °F. Total rainfall 0.04 in.

Interactive map weather Maryland, USA

GPS: 39.0182; -77.2086

altitude: 354 ft
local time:

PLACES IN THE AREA

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Weather forecast Potomac, Maryland, Maryland, USA extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Saturday 01/10/2026
1 AM	overcast	55 °F 55 °F	0.01 in	9 fps 6 mph southwest	30.0 in	98 %	54 °F	100 %	0%	0%	61%	100%
7 AM	heavy rain	52 °F 52 °F	0.61 in	7 fps 5 mph northeast	30.1 in	99 %	50 °F	100 %	0%	100%	46%	100%
1 PM	light rain	52 °F 52 °F	0.02 in	11 fps 8 mph east-southeast	29.9 in	99 %	52 °F	100 %	0%	100%	61%	100%
7 PM	overcast	63 °F 64 °F	0.01 in	20 fps 14 mph south-southwest	29.8 in	94 %	59 °F	100 %	0%	100%	3%	100%
Sunday 01/11/2026
1 AM	light rain	63 °F 64 °F	0.04 in	16 fps 11 mph southwest	29.8 in	93 %	59 °F	100 %	0%	39%	100%	99%
7 AM	overcast	46 °F 41 °F	0.0 in	14 fps 9 mph northwest	29.9 in	58 %	32 °F	100 %	0%	0%	100%	57%
1 PM	cloudy	50 °F 43 °F	0.0 in	25 fps 17 mph west-southwest	29.9 in	30 %	21 °F	85 %	0%	0%	85%	0%
7 PM	clear	36 °F 28 °F	0.0 in	21 fps 14 mph west-northwest	30.0 in	40 %	14 °F	6 %	0%	3%	3%	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.

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Astronomical information Potomac, Maryland

data are always in the local time

Sun and light

Jan. 10, 2026

Sunrise:	Sunset:
7:27 am	5:05 pm
Noon:	Length of day:
12:16 pm	09:38
Start of civil twilight*:	End of civil twilight*:
6:57 am	5:35 pm
Start of nautical twilight*:	End of nautical twilight*:
6:24 am	6:08 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:52 am	6:40 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
01/10/2026 12:09 am	01/10/2026 11:22 am
Next new moon:	Next full moon:
01/18/2026	02/01/2026