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Potomac, MD 20859 Weather
Current conditions
Observed at Gaithersburg - Montgomery County Airport · 46 min ago
Forecast
10-day-
Today
Sunny, with a high near 63. North wind 6 to 9 mph.
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Tonight
Mostly clear, with a low around 39. North wind around 6 mph.
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Thursday
Sunny, with a high near 64. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
National Weather Service forecast updated 2 hrs ago.
Hourly
Hourly forecast- Now50°
- 11 AM54°
- 12 PM56°
- 1 PM60°
- 2 PM62°
- 3 PM62°
- 4 PM63°
- 5 PM61°
- 6 PM59°
- 7 PM56°
- 8 PM51°
- 9 PM49°
- 10 PM47°
- 11 PM46°
- Thu12 AM45°
- 1 AM44°
- 2 AM43°
- 3 AM43°
- 4 AM42°
- 5 AM41°
- 6 AM40°
- 7 AM39°
- 8 AM39°
- 9 AM44°
10-day forecast
Details- TodayOct 21Sunny39°63°
- ThuOct 22Sunny42°64°
- FriOct 23Sunny36°60°
- SatOct 24Sunny38°60°
- SunOct 25Sunny41°64°
- MonOct 26Sunny46°67°
- TueOct 27Mostly Sunny45°65°
- WedOct 28Cloudy51°68°
- ThuOct 29Cloudy54°69°
- FriOct 30Cloudy52°71°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Potomac
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Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- WedGood (28)
- ThuGood (33)
- FriGood (33)
Suburban DC, MD reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyVienna, records since 1948. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Washington 31 km
- Arlington 31 km
- Alexandria 40 km
- Columbia 33 km
- Germantown 6 km
- Silver Spring 23 km
- Centreville 39 km
- Frederick 35 km
- Gaithersburg 1 km
- Rockville 8 km
- Ellicott City 38 km
- Bethesda 20 km
Forecasters' discussion
From the National Weather Service office in LWX, issued 1 hr ago
What Has Changed
Coastal Flood Advisories issued through Thursday afternoon for an extended period of minor tidal flooding.
Key Messages
- 1) Dry conditions and seasonable temperatures are expected through early next week.
Discussion
KEY MESSAGE 1...Dry conditions and seasonable temperatures are expected through early next week.
Surface high pressure continues to build north of the forecast area through the end of the week, yielding dry conditions, seasonal temperatures, and limited cloud cover. High temperatures will be in the 60s to near 70s each day with overnight lows in the 30s to mid 40s.
High pressure will build southward out of southeastern Canada and eastern Great Lakes region Saturday through Tuesday. Dry conditions are expected each day. There could be some areas of frost Saturday morning. Temperatures will start out chilly Saturday with highs 5 to 7 degrees below average and highs generally in the upper 50s to lower 60s. By Sunday, temperatures will be more seasonable. Monday will encounter highs approaching or reaching the 70 degree mark. By Tuesday, temperatures may be knocked down to seasonable once again. Highs in the middle 60s.
Aviation
VFR conditions continue as surface high pressure builds overhead and dry conditions persist. Winds remain primarily out of the north today before shifting to northwesterly on Thursday. On Friday, winds shift to northeasterly. Terminals located near the I-95 corridor will gust around 15 knots each afternoon. Otherwise, terminals can expect light northerly winds, no precipitation, and VFR conditions.
VFR conditions Saturday through Sunday night. Winds light and variable through the period.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.