Potomac, MD Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Potomac, MD in one place.
Mostly clear, with a low around 63. North wind around 5 mph.
Local Weather Overview
This forecast page for Potomac, MD is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 29, 2026 4:23 AM EDT.
The active forecast window currently covers Aug 29 to Sep 4, 2026 for Potomac, MD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 4, 2026
- Latest sync
- Aug 29, 2026 4:23 AM EDT
- Forecast office
- LWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Potomac
Wednesday looks like the warmest upcoming period in Potomac at 95 degrees F.
Overnight is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Sunday at about 2 to 8 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 29, 2026 4:23 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- LWX
- Radar station
- KLWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 85. Northeast wind around 6 mph.
Partly cloudy, with a low around 67. Southeast wind around 5 mph.
Mostly sunny, with a high near 89. South wind 2 to 8 mph.
Partly cloudy, with a low around 73. South wind 2 to 6 mph.
Mostly sunny, with a high near 92.
Partly cloudy, with a low around 74.
Mostly sunny, with a high near 94.
Partly cloudy, with a low around 76.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 29
|
Mostly Clear
|
63°F |
5 mph
N
|
|
Saturday
Aug 29
|
Sunny
|
85°F |
6 mph
NE
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
67°F |
5 mph
SE
|
|
Sunday
Aug 30
|
Mostly Sunny
|
89°F |
2 to 8 mph
S
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
73°F |
2 to 6 mph
S
|
|
Monday
Aug 31
|
Mostly Sunny
|
92°F |
2 to 6 mph
NW
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
74°F |
1 to 6 mph
SW
|
|
Tuesday
Sep 1
|
Mostly Sunny
|
94°F |
1 to 6 mph
W
|
|
Tuesday Night
Sep 1
|
Partly Cloudy
|
76°F |
2 to 6 mph
SW
|
|
Wednesday
Sep 2
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
95°F |
2 to 8 mph
W
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms
|
76°F |
2 to 7 mph
SW
|
|
Thursday
Sep 3
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
3 to 8 mph
W
|
|
Thursday Night
Sep 3
|
Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
2 to 7 mph
NW
|
|
Friday
Sep 4
|
Mostly Sunny then Slight Chance Rain Showers
|
88°F |
3 to 7 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Potomac.
