What is the weather in Potomac, MD right now?

The latest observation from Gaithersburg - Montgomery County Airport was 59°F and clear, reported at 10/26/2026, 6:30 PM EDT.

Will it rain in Potomac, MD in the next 24 hours?

The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.

What is the 10-day forecast for Potomac, MD?

The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 3 to Nov 4) come from the NOAA National Blend of Models, with highs of 66°F to 69°F and up to a 30% chance of precipitation. Model guidance this far out often changes.

What time is sunrise and sunset in Potomac, MD today?

Sunrise is about 7:30 AM EDT and sunset is about 6:15 PM EDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in Potomac, MD?

At Rockville 1 NE, the 1991 to 2020 normal high in October is 66°F and the normal low is 48°F.

Checked Oct 26, 2026

Potomac, MD Weather

Current conditions, hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Potomac, MD current weather

59°F

Clear

H -- / L 48°Feels like 59°

Wildfire smoke overhead: light
No rain expected in the next 12 hours

Observed at Gaithersburg - Montgomery County Airport (10.6 mi away), 10/26/2026, 6:30 PM EDT

Hourly forecast

NWS, updated 4:52 PM

Now62°
8 PM58°
9 PM56°
10 PM55°
11 PM53°
Tue12 AM51°
1 AM51°
2 AM51°
3 AM50°
4 AM50°
5 AM49°
6 AM49°
7 AM48°
8 AM48°
9 AM52°
10 AM58°
11 AM61°
12 PM63°
1 PM66°
2 PM67°
3 PM68°
4 PM67°
5 PM67°
6 PM65°
7 PM62°
8 PM58°
9 PM56°
10 PM55°
11 PM53°
Wed12 AM52°
1 AM51°
2 AM51°
3 AM50°
4 AM49°
5 AM49°
6 AM49°
7 AM48°
8 AM49°
9 AM51°
10 AM55°
11 AM58°
12 PM61°
1 PM64°
2 PM65°
3 PM66°
4 PM66°
5 PM65°
6 PM63°

10-day forecast

Tap a day for details

Today10/26Low 48°High
Tonight: Mostly clear, with a low around 48. Northwest wind around 5 mph.
Mostly Clear
Tue10/27Low 48°High 68°
Tuesday: Sunny, with a high near 68. North wind around 6 mph.
Tuesday Night: Partly cloudy, with a low around 48. East wind around 3 mph.
Sunny
Wed10/28Low 50°High 67°
Wednesday: Partly sunny, with a high near 67. East wind 1 to 6 mph.
Wednesday Night: Mostly cloudy, with a low around 50. Southeast wind 1 to 6 mph.
Partly Sunny
Thu10/29Low 50°High 71°
Thursday: Mostly sunny, with a high near 71.
Thursday Night: Mostly clear, with a low around 50.
Mostly Sunny
Fri10/30Low 52°High 76°
Friday: Sunny, with a high near 76.
Friday Night: Partly cloudy, with a low around 52.
Sunny
Sat10/31Low 52°High 70°
Saturday: Partly sunny, with a high near 70.
Saturday Night: Mostly cloudy, with a low around 52.
Partly Sunny
Sun11/119% chance of precipitationLow 55°High 69°
Sunday: A slight chance of rain showers after 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 20%.
Sunday Night: A slight chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 20%.
Mostly Cloudy then Slight Chance Rain Showers
Mon11/219% chance of precipitationLow High 69°
Monday: A slight chance of rain showers before 1pm. Mostly cloudy, with a high near 69.
Slight Chance Rain Showers
Model blend
Tue11/3Model blend30% chance of precipitationLow 51°High 69°
Tuesday: Chance of rain. High near 69°. Low that night near 51°. About 0.07 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Wed11/4Model blend28% chance of precipitationLow 48°High 66°
Wednesday: Partly cloudy, slight chance of rain. High near 66°. Low that night near 48°. About 0.43 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 39.018, -77.196 from the NWS LWX office, updated 10/26/2026, 4:52 PM EDT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KGAI (Gaithersburg/Montgomery Cnty, 11 mi), model run 10/26/2026, 4:00 PM EDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

Now62°Clear0%3 mph
8 PM58°Clear0%2 mph
9 PM56°Clear0%2 mph
10 PM55°Clear0%3 mph
11 PM53°Clear0%3 mph
12 AM51°Mostly Clear0%3 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Line: temperature °F. Bars: chance of precipitation.

MonNow62° 0% Sky 1%3
8 PM58° 0% Sky 2%2
9 PM56° 0% Sky 1%2
10 PM55° 0% Sky 1%3
11 PM53° 0% Sky 5%3g8
Tue 10/2712 AM51° 0% Sky 21%3g8
1 AM51° 0% Sky 8%5
2 AM51° 0% Sky 20%5
3 AM50° 0% Sky 24%5
4 AM50° 0% Sky 23%5
5 AM49° 0% Sky 11%3g10
6 AM49° 1% Sky 8%3g9
7 AM48° 1% Sky 7%3g9
8 AM48° 2% Sky 7%5
9 AM52° 2% Sky 9%5g10
10 AM58° 2% Sky 9%6g12
11 AM61° 2% Sky 21%5
12 PM63° 2% Sky 20%5
1 PM66° 2% Sky 24%5
2 PM67° 2% Sky 27%3
3 PM68° 2% Sky 27%3
4 PM67° 1% Sky 24%3
5 PM67° 1% Sky 30%3
6 PM65° 2% Sky 24%3
7 PM62° 1% Sky 24%3g8
8 PM58° 0% Sky 28%3g8
9 PM56° 0% Sky 35%3
10 PM55° 0% Sky 45%3
11 PM53° 0% Sky 44%3
Wed 10/2812 AM52° 0% Sky 34%3
1 AM51° 0% Sky 23%2
2 AM51° 0% Sky 35%3
3 AM50° 0% Sky 26%2
4 AM49° 0% Sky 33%2
5 AM49° 0% Sky 42%1
6 AM49° 0% Sky 53%1
7 AM48° 0% Sky 50%2
8 AM49° 0% Sky 52%2
9 AM51° 0% Sky 52%2
10 AM55° 0% Sky 48%3
11 AM58° 0% Sky 44%3
12 PM61° 0% Sky 48%3
1 PM64° 0% Sky 54%5
2 PM65° 0% Sky 60%5
3 PM66° 1% Sky 65%5
4 PM66° 0% Sky 69%6
5 PM65° 0% Sky 73%6
6 PM63° 0% Sky 71%6
7 PM61° 0% Sky 70%5
8 PM58° 0% Sky 68%3g8
9 PM56° 0% Sky 70%3g8
10 PM54° 0% Sky 71%2g7
11 PM53° 0% Sky 73%2g7
Thu 10/2912 AM52° 0% Sky 70%2g7
1 AM52° 0% Sky 68%2
2 AM52° 0% Sky 65%2
3 AM52° 0% Sky 63%2
4 AM51° 0% Sky 60%1
5 AM51° 0% Sky 58%1
6 AM50° 0% Sky 55%1
7 AM50° 0% Sky 53%1
8 AM51° 0% Sky 50%1
9 AM54° 0% Sky 42%2
10 AM58° 0% Sky 33%2
11 AM62° 0% Sky 25%3
12 PM65° 0% Sky 23%3g8
1 PM68° 0% Sky 20%5
2 PM69° 0% Sky 18%5g10
3 PM71° 0% Sky 16%5g10
4 PM71° 0% Sky 14%5
5 PM71° 0% Sky 12%5
6 PM68° 0% Sky 9%5
7 PM65° 0% Sky 7%3
8 PM62° 0% Sky 4%3
9 PM60° 0% Sky 4%3
10 PM58° 0% Sky 4%2g7
11 PM56° 0% Sky 4%2g7
Fri 10/3012 AM55° 0% Sky 4%2g7
1 AM54° 0% Sky 4%1g6
2 AM54° 0% Sky 4%1g6
3 AM53° 0% Sky 4%1g6
4 AM53° 0% Sky 4%1
5 AM52° 0% Sky 4%1
6 AM51° 0% Sky 4%1
7 AM51° 0% Sky 4%2
8 AM52° 0% Sky 14%2
9 AM56° 0% Sky 14%2
10 AM61° 0% Sky 14%3
11 AM66° 0% Sky 14%3
12 PM70° 0% Sky 14%3g8
1 PM72° 0% Sky 14%5
2 PM74° 0% Sky 19%5
3 PM75° 0% Sky 19%5
4 PM76° 0% Sky 19%3
5 PM75° 0% Sky 19%2
6 PM73° 0% Sky 19%2
7 PM69° 0% Sky 19%1
8 PM66° 0% Sky 31%1
9 PM63° 0% Sky 31%1
10 PM61° 0% Sky 31%1
11 PM59° 0% Sky 31%1
Sat 10/3112 AM58° 0% Sky 31%1
1 AM57° 0% Sky 31%1
2 AM56° 0% Sky 50%1
3 AM55° 0% Sky 50%1g6
4 AM55° 0% Sky 50%2
5 AM54° 0% Sky 50%2g7
6 AM53° 0% Sky 50%2g7
7 AM52° 0% Sky 50%3
8 AM52° 1% Sky 63%3
9 AM55° 1% Sky 63%3
10 AM59° 1% Sky 63%5
11 AM63° 1% Sky 63%5
12 PM66° 1% Sky 63%5
1 PM68° 1% Sky 63%3
2 PM69° 1% Sky 68%3
3 PM70° 1% Sky 68%3
4 PM70° 1% Sky 68%3
5 PM69° 1% Sky 68%3
6 PM67° 1% Sky 68%3
7 PM65° 1% Sky 68%3
8 PM62° 1% Sky 70%3
9 PM60° 1% Sky 70%2g7
10 PM58° 1% Sky 70%2
11 PM56° 1% Sky 70%1g6
Sun 11/112 AM55° 1% Sky 70%1g6
1 AM54° 1% Sky 70%1g6
1 AM54° 3% Sky 78%1g6
2 AM54° 3% Sky 78%1g6
3 AM53° 3% Sky 78%1
4 AM53° 3% Sky 78%1
5 AM52° 3% Sky 78%1
6 AM52° 3% Sky 78%2
7 AM53° 8% Sky 83%2
8 AM56° 8% Sky 83%3
9 AM59° 8% Sky 83%3
10 AM62° 8% Sky 83%5
11 AM64° 8% Sky 83%5
12 PM66° 8% Sky 83%6
1 PM67° 15% Sky 80%6
2 PM68° 15% Sky 80%6
3 PM68° 15% Sky 80%6
4 PM68° 15% Sky 80%6
5 PM66° 15% Sky 80%5g10
6 PM64° 15% Sky 80%5
7 PM62° 13% Sky 82%3g9
8 PM60° 13% Sky 82%3g8
9 PM59° 13% Sky 82%2g8
10 PM58° 13% Sky 82%2g7
11 PM57° 13% Sky 82%2g7
Mon 11/212 AM57° 13% Sky 82%2g7
1 AM57° 19% Sky 84%2g7
2 AM57° 19% Sky 84%2g7
3 AM56° 19% Sky 84%2g7
4 AM56° 19% Sky 84%2g7
5 AM55° 19% Sky 84%2g8

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/26/2026, 4:52 PM EDT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Maryland hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
River gauges within 40 miles at or above flood stage: None reported
Active wildfires within 50 miles: None reported

Drought

By county

Montgomery County, week of 10/20/2026

2% of the county is in moderate drought or worse.

Tides nearby

NOAA tide stations

Washington, Washington Channel, D.C.13.7 mi
Washington Naval Yard14.8 mi
Kingman Lake14.9 mi

Frequently asked questions

What is the weather in Potomac, MD right now?: The latest observation from Gaithersburg - Montgomery County Airport was 59°F and clear, reported at 10/26/2026, 6:30 PM EDT.
Will it rain in Potomac, MD in the next 24 hours?: The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Potomac, MD?: The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 3 to Nov 4) come from the NOAA National Blend of Models, with highs of 66°F to 69°F and up to a 30% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Potomac, MD today?: Sunrise is about 7:30 AM EDT and sunset is about 6:15 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Potomac, MD?: At Rockville 1 NE, the 1991 to 2020 normal high in October is 66°F and the normal low is 48°F.

Sun and moon

Local time, center of the area

Sunrise: 7:30 AM
Sunset: 6:15 PM
Daylight: 10 hr 45 min
Moon: Full Moon 99% lit

First light (civil dawn): 7:02 AM
Last light (civil dusk): 6:42 PM
Moonrise: 6:10 PM
Moonset: 8:03 AM

Normal October weather

Climate

Normal October high 66°, low 48°, precipitation 3.52 in for the month. 1991 to 2020 normals at Rockville 1 NE, 6 mi away.

Other places nearby

Data sources

National Weather Service APINOAA
National Blend of Models (NBM) text guidanceNOAA National Weather Service
Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
National Water Prediction ServiceNOAA National Weather Service
WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
Hazard Mapping System Smoke AnalysisNOAA NESDIS Office of Satellite and Product Operations
UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
AirNowU.S. Environmental Protection Agency
NWS HeatRisk (experimental)NOAA National Weather Service
U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research

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About this data

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