Water Temperature of the Potomac River in Point of Rocks, MD
Current Water Temperature
Measurement Time: Tuesday, October 28, 2025, 11:45 PM EDT
Temperature Locations
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Local Points of Interest
Paton Island; Heaters island; Chesapeake and Ohio Canal National Historic ParkSponsored Content
Station Name: POTOMAC RIVER AT POINT OF ROCKS, MD
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 217 feet / 66 meters
Nearest Address:
3707 Canal Rd
Point of Rocks, MD 21777
Frederick County
GPS Coordinates: 39.2735833, -77.5431111
Nearby Water Temperatures
Carroll Creek, Frederick, MD (12.1 mi)Carroll Creek, Frederick, MD (12.5 mi)
Big Hunting Creek, Thurmont, MD (25.1 mi)
Difficult Run, McLean, VA (26.0 mi)
Spout Run, Boyce, VA (28.5 mi)
Difficult Run, Oakton, VA (29.1 mi)
Dead Run, McLean, VA (29.3 mi)
Patuxent River, Brighton, MD (29.4 mi)
Sligo Creek, Takoma Park, MD (35.0 mi)
Paint Branch, Calverton, MD (35.2 mi)
Washington Channel, Washington, DC (39.3 mi)
Northeast Branch Anacostia River, Riverdale Park, MD (39.5 mi)
Scotts Level Branch, Milford Mill, MD (42.2 mi)
Cacapon River , Great Cacapon, WV (46.1 mi)
Gunpowder Falls, Parkton, MD (51.4 mi)
Weather for Point of Rocks, Maryland
Current Weather

Humidity: 81%
Feels Like: 42.7°F
Wind: NE 7.8 mph
Wind Gusts: 11.8 mph
Precipitation: 0.01 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Wed
H: 56°F
L: 41°F

Thu
H: 64°F
L: 48°F

Fri
H: 59°F
L: 41°F

Sat
H: 60°F
L: 41°F

Sun
H: 60°F
L: 41°F
Air Quality
Nitrogen Dioxide: 11.65 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 38 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 6:12 PM
Daylight: 10 hrs 37 mins
Moon Transit: 7:30 PM
Moonset: 12:24 AM
Moon Phase: First Quarter
Moon Illumination: 52.5%
Best Times for Fishing or Hunting
Major Periods
8:18 AM - 10:48 AM7:00 PM - 9:30 PM
Minor Periods
2:07 PM - 3:37 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
This is only a test for monitoring of vital dissemination systems.
Effective: Wed October 29, 2025, 2:24 AM
Expires: Wed October 29, 2025, 2:34 AM
Monitoring message only. Please disregard.
Monitoring message only. Please disregard.
Coastal Flood Advisory issued October 28 at 4:25PM EDT until October 29 at 5:00AM EDT by NWS Baltimore MD/Washington DC
Effective: Tue October 28, 2025, 4:25 PM
Expires: Wed October 29, 2025, 12:30 AM
* WHAT...Up to one half foot of inundation above ground level expected in low-lying areas due to tidal flooding. * WHERE...Shoreline in the City of Alexandria and Arlington County. * WHEN...From 10 PM this evening to 5 AM EDT Wednesday, especially around the time of high tide. * IMPACTS...Water is expected to approach the curb near the intersection of King Street and Strand Street in Alexandria. * ADDITIONAL DETAILS...Tides one to one and a half feet above normal. High tide at Alexandria is at 1:46 AM.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Coastal Flood Advisory issued October 28 at 8:58PM EDT until October 31 at 6:00AM EDT by NWS Baltimore MD/Washington DC
Effective: Tue October 28, 2025, 8:58 PM
Expires: Wed October 29, 2025, 5:00 AM
* WHAT...Two to two and half feet of inundation above ground level expected in low lying areas due to tidal flooding. * WHERE...Shoreline in the City of Alexandria and Arlington County. * WHEN...Until 6 AM EDT Friday, especially around the time of high tide. * IMPACTS....Water is expected to approach the curb near the intersection of King Street and Strand Street in Alexandria. * ADDITIONAL DETAILS...Tides two to two and a half feet above normal. The next high tide at Alexandria is at 1:46 AM and 2:30 PM.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Weather Forecast
Average Temperature: 48°F
Average Humidity: 76%
Wind: 13.9 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 12.15 μg/m3
Sulphur Dioxide: 4.82 μg/m3
Ozone: 44.08 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 6:12 PM
Daylight: 10 hrs 37 mins
Moon Transit: 7:30 PM
Moonset: 12:24 AM
Moon Phase: First Quarter
Moon Illumination: 52.5%
Best Times for Fishing or Hunting
Major Periods
8:18 AM - 10:48 AM7:00 PM - 9:30 PM
Minor Periods
2:07 PM - 3:37 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 54.2°F
Average Humidity: 94%
Wind: 20.4 mph
UV Index: 0.4
Air Quality
Nitrogen Dioxide: 12.36 μg/m3
Sulphur Dioxide: 4.47 μg/m3
Ozone: 51.6 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 6:11 PM
Daylight: 10 hrs 35 mins
Moon Transit: 8:18 PM
Moonset: 12:32 AM
Moon Phase: First Quarter
Moon Illumination: 63.7%
Best Times for Fishing or Hunting
Major Periods
9:07 AM - 11:37 AM7:48 PM - 10:18 PM
Minor Periods
2:36 PM - 4:06 PM12:02 AM - 1:32 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 48.7°F
Average Humidity: 69%
Wind: 21.5 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 5.13 μg/m3
Sulphur Dioxide: 4.33 μg/m3
Ozone: 66.44 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 6:10 PM
Daylight: 10 hrs 33 mins
Moon Transit: 9:05 PM
Moonset: 1:40 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%
Best Times for Fishing or Hunting
Major Periods
9:55 AM - 12:25 AM8:35 PM - 11:05 PM
Minor Periods
3:02 PM - 4:32 PM1:10 AM - 2:40 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 49.5°F
Average Humidity: 60%
Wind: 13.6 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 6.23 μg/m3
Sulphur Dioxide: 5.92 μg/m3
Ozone: 67.28 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 6:09 PM
Daylight: 10 hrs 31 mins
Moon Transit: 9:52 PM
Moonset: 2:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.4%
Best Times for Fishing or Hunting
Major Periods
10:42 AM - 1:12 PM9:22 PM - 11:52 PM
Minor Periods
3:27 PM - 4:57 PM2:19 AM - 3:49 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 48.3°F
Average Humidity: 68%
Wind: 3.6 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 10.25 μg/m3
Sulphur Dioxide: 7.49 μg/m3
Ozone: 44.62 μg/m3
Astronomical
Sun Transit: 12:53 AM
Sunset: 6:08 PM
Daylight: 10 hrs 28 mins
Moon Transit: 12:31 AM
Moonset: 4:00 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.9%
Best Times for Fishing or Hunting
Major Periods
11:30 AM - 2:00 PM12:01 AM - 2:31 PM
Minor Periods
3:52 PM - 5:22 PM3:30 AM - 5:00 AM
Action Rating: 2 out of 5
