Water Temperature of the Potomac River in Point of Rocks, MD

Current Water Temperature

79.9°F

Measurement Time: Friday, September 11, 2026, 1:55 AM EDT

Temperature Locations

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Local Points of Interest

Paton Island; Heaters island; Chesapeake and Ohio Canal National Historic Park

Potomac River

Station Name: POTOMAC RIVER AT POINT OF ROCKS, MD
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 217 feet

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 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 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

70°F
Rain Showers Likely
Rain Showers Likely
93%
N 5 mph
68°F

Weather Forecast

Rain Showers Likely then Mostly Cloudy
Today
80°F - Rain Showers Likely then Mostly Cloudy
Mostly Cloudy then Chance Rain Showers
Tonight
65°F - Mostly Cloudy then Chance Rain Showers
Showers And Thunderstorms Likely
Saturday
82°F - Showers And Thunderstorms Likely
Chance Showers And Thunderstorms then Showers And Thunderstorms
Saturday Night
67°F - Chance Showers And Thunderstorms then Showers And Thunderstorms
Chance Rain Showers then Mostly Sunny
Sunday
86°F - Chance Rain Showers then Mostly Sunny
Mostly Clear
Sunday Night
66°F - Mostly Clear
Mostly Sunny
Monday
82°F - Mostly Sunny
Partly Cloudy
Monday Night
59°F - Partly Cloudy
Sunny
Tuesday
83°F - Sunny
Mostly Clear
Tuesday Night
63°F - Mostly Clear
Sunny then Slight Chance Rain Showers
Wednesday
87°F - Sunny then Slight Chance Rain Showers
Slight Chance Rain Showers
Wednesday Night
66°F - Slight Chance Rain Showers
Chance Rain Showers
Thursday
87°F - Chance Rain Showers
Chance Rain Showers
Thursday Night
65°F - Chance Rain Showers

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:06 PM
Sunset: 7:25 PM
Daylight: 12 hrs 37 mins
Moonrise: 7:16 AM
Moon Transit: 1:30 PM
Moonset: 7:33 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:20 AM - 4:50 AM
1:00 PM - 3:30 PM

Minor Periods

7:03 PM - 8:33 PM
6:46 AM - 8:16 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:06 PM
Sunset: 7:25 PM
Daylight: 12 hrs 37 mins
Moonrise: 7:16 AM
Moon Transit: 1:30 PM
Moonset: 7:33 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:20 AM - 4:50 AM
1:00 PM - 3:30 PM

Minor Periods

7:03 PM - 8:33 PM
6:46 AM - 8:16 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:06 PM
Sunset: 7:25 PM
Daylight: 12 hrs 37 mins
Moonrise: 7:16 AM
Moon Transit: 1:30 PM
Moonset: 7:33 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:20 AM - 4:50 AM
1:00 PM - 3:30 PM

Minor Periods

7:03 PM - 8:33 PM
6:46 AM - 8:16 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:06 PM
Sunset: 7:23 PM
Daylight: 12 hrs 34 mins
Moonrise: 8:24 AM
Moon Transit: 2:15 PM
Moonset: 7:56 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:05 AM - 5:35 AM
1:45 PM - 4:15 PM

Minor Periods

7:26 PM - 8:56 PM
7:54 AM - 9:24 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:06 PM
Sunset: 7:23 PM
Daylight: 12 hrs 34 mins
Moonrise: 8:24 AM
Moon Transit: 2:15 PM
Moonset: 7:56 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:05 AM - 5:35 AM
1:45 PM - 4:15 PM

Minor Periods

7:26 PM - 8:56 PM
7:54 AM - 9:24 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:06 PM
Sunset: 7:21 PM
Daylight: 12 hrs 32 mins
Moonrise: 9:31 AM
Moon Transit: 3:00 PM
Moonset: 8:21 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
2:30 PM - 5:00 PM

Minor Periods

7:51 PM - 9:21 PM
9:01 AM - 10:31 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:06 PM
Sunset: 7:21 PM
Daylight: 12 hrs 32 mins
Moonrise: 9:31 AM
Moon Transit: 3:00 PM
Moonset: 8:21 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:50 AM - 6:20 AM
2:30 PM - 5:00 PM

Minor Periods

7:51 PM - 9:21 PM
9:01 AM - 10:31 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:05 PM
Sunset: 7:20 PM
Daylight: 12 hrs 29 mins
Moonrise: 10:37 AM
Moon Transit: 3:46 PM
Moonset: 8:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:36 AM - 7:06 AM
3:16 PM - 5:46 PM

Minor Periods

8:19 PM - 9:49 PM
10:07 AM - 11:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:05 PM
Sunset: 7:20 PM
Daylight: 12 hrs 29 mins
Moonrise: 10:37 AM
Moon Transit: 3:46 PM
Moonset: 8:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:36 AM - 7:06 AM
3:16 PM - 5:46 PM

Minor Periods

8:19 PM - 9:49 PM
10:07 AM - 11:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:05 PM
Sunset: 7:18 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:42 AM
Moon Transit: 4:33 PM
Moonset: 9:20 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
4:03 PM - 6:33 PM

Minor Periods

8:50 PM - 10:20 PM
11:12 AM - 12:42 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:05 PM
Sunset: 7:18 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:42 AM
Moon Transit: 4:33 PM
Moonset: 9:20 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
4:03 PM - 6:33 PM

Minor Periods

8:50 PM - 10:20 PM
11:12 AM - 12:42 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:04 PM
Sunset: 7:17 PM
Daylight: 12 hrs 24 mins
Moonrise: 12:46 AM
Moon Transit: 5:23 PM
Moonset: 9:57 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
4:53 PM - 7:23 PM

Minor Periods

9:27 PM - 10:57 PM
12:16 AM - 1:46 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:04 PM
Sunset: 7:17 PM
Daylight: 12 hrs 24 mins
Moonrise: 12:46 AM
Moon Transit: 5:23 PM
Moonset: 9:57 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
4:53 PM - 7:23 PM

Minor Periods

9:27 PM - 10:57 PM
12:16 AM - 1:46 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:04 PM
Sunset: 7:15 PM
Daylight: 12 hrs 22 mins
Moonrise: 1:46 PM
Moon Transit: 6:14 PM
Moonset: 10:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
5:44 PM - 8:14 PM

Minor Periods

10:11 PM - 11:41 PM
1:16 PM - 2:46 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:04 PM
Sunset: 7:15 PM
Daylight: 12 hrs 22 mins
Moonrise: 1:46 PM
Moon Transit: 6:14 PM
Moonset: 10:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
5:44 PM - 8:14 PM

Minor Periods

10:11 PM - 11:41 PM
1:16 PM - 2:46 PM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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