National Weather Service forecast
Potomac, Maryland Weather
Potomac 7-Day Forecast
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Overnight52°FMostly Clear1% chance of precipitation
Mostly clear, with a low around 52. Southeast wind around 3 mph.
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Wednesday75°FMostly Sunny1% chance of precipitation
Mostly sunny, with a high near 75. South wind 3 to 9 mph, with gusts as high as 18 mph.
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Wednesday Night62°FMostly Cloudy then Chance Rain Showers40% chance of precipitation
A chance of rain showers after 3am. Mostly cloudy, with a low around 62. South wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
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Thursday74°FChance Rain Showers43% chance of precipitation
A chance of rain showers. Mostly cloudy, with a high near 74. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
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Thursday Night61°FChance Rain Showers54% chance of precipitation
A chance of rain showers. Mostly cloudy, with a low around 61. Southwest wind 2 to 7 mph. Chance of precipitation is 50%.
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Friday70°FChance Light Rain54% chance of precipitation
A chance of rain showers before 7am, then a chance of rain. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
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Friday Night49°FChance Light Rain then Partly Cloudy32% chance of precipitation
A chance of rain before 7pm. Partly cloudy, with a low around 49. Chance of precipitation is 30%.
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Saturday62°FMostly Sunny6% chance of precipitation
Mostly sunny, with a high near 62.
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Saturday Night41°FMostly Clear5% chance of precipitation
Mostly clear, with a low around 41.
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Sunday60°FMostly Sunny1% chance of precipitation
Mostly sunny, with a high near 60.
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Sunday Night41°FMostly Clear5% chance of precipitation
Mostly clear, with a low around 41.
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Monday61°FSunny5% chance of precipitation
Sunny, with a high near 61.
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Monday Night38°FMostly Clear5% chance of precipitation
Mostly clear, with a low around 38.
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Tuesday64°FSunny3% chance of precipitation
Sunny, with a high near 64.
Issued by the National Weather Service (LWX office), updated .
Potomac Hourly Forecast
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Potomac Weather Radar
Open the full radar for PotomacAbout Potomac
- Population (2020 Census)
- 47,018
- Coordinates
- 39.013, -77.194
- Elevation
- 381 ft
- NWS forecast office
- LWX
- Time zone
- America/New York
- Sunrise today
- 6:39 AM EST
- Sunset today
- 5:05 PM EST
- Daylight today
- 10 h 26 min
Potomac Weather Questions
What is the weather forecast for Potomac, Maryland?
Overnight: Mostly clear, with a low around 52. Southeast wind around 3 mph. Wednesday: Mostly sunny, with a high near 75. South wind 3 to 9 mph, with gusts as high as 18 mph.
Will it rain or snow in Potomac this week?
The best chance of precipitation is Thursday Night at 54%. Periods with a 30% chance or more: Wednesday Night (40%), Thursday (43%), Thursday Night (54%), Friday (54%), Friday Night (32%).
How warm and how cold will it get in Potomac this week?
The warmest day is Wednesday, with a high near 75°F. The coldest night is Monday Night, with a low near 38°F.
What time are sunrise and sunset in Potomac today?
Sunrise is at 6:39 AM EST and sunset is at 5:05 PM EST, for 10 h 26 min of daylight.
Weather near Potomac
- Cabin John 3 mi
- Glen Echo 4 mi
- North Bethesda 4 mi
- Bethesda 4 mi
- Travilah 4 mi
- Rockville 5 mi
- Brookmont 5 mi
- Garrett Park 6 mi