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

Current Water Temperature

70.9°F

Measurement Time: Monday, October 5, 2026, 12:55 PM 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

69°F
Mostly Sunny
Mostly Sunny
45%
NW 12 mph
47°F

Weather Forecast

Mostly Sunny
This Afternoon
72°F - Mostly Sunny
Mostly Clear
Tonight
42°F - Mostly Clear
Sunny
Tuesday
66°F - Sunny
Clear
Tuesday Night
40°F - Clear
Sunny
Wednesday
74°F - Sunny
Mostly Clear
Wednesday Night
52°F - Mostly Clear
Sunny
Thursday
80°F - Sunny
Clear
Thursday Night
51°F - Clear
Sunny
Friday
75°F - Sunny
Mostly Clear
Friday Night
50°F - Mostly Clear
Mostly Sunny
Saturday
72°F - Mostly Sunny
Partly Cloudy
Saturday Night
50°F - Partly Cloudy
Partly Sunny then Slight Chance Rain Showers
Sunday
71°F - Partly Sunny then Slight Chance Rain Showers
Chance Rain Showers
Sunday Night
54°F - Chance Rain Showers

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:58 AM
Sunset: 6:47 PM
Daylight: 11 hrs 37 mins
Moonrise: 1:27 AM
Moon Transit: 8:57 AM
Moonset: 4:16 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:27 AM - 10:57 AM
12:00 AM - 12:00 AM

Minor Periods

3:46 PM - 5:16 PM
12:57 AM - 2:27 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: 7:10 AM
Sun Transit: 12:58 AM
Sunset: 6:47 PM
Daylight: 11 hrs 37 mins
Moonrise: 1:27 AM
Moon Transit: 8:57 AM
Moonset: 4:16 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:27 AM - 10:57 AM
12:00 AM - 12:00 AM

Minor Periods

3:46 PM - 5:16 PM
12:57 AM - 2:27 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: 7:10 AM
Sun Transit: 12:58 AM
Sunset: 6:47 PM
Daylight: 11 hrs 37 mins
Moonrise: 1:27 AM
Moon Transit: 8:57 AM
Moonset: 4:16 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:27 AM - 10:57 AM
12:00 AM - 12:00 AM

Minor Periods

3:46 PM - 5:16 PM
12:57 AM - 2:27 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: 7:11 AM
Sun Transit: 12:58 AM
Sunset: 6:45 PM
Daylight: 11 hrs 34 mins
Moonrise: 2:41 AM
Moon Transit: 9:49 AM
Moonset: 4:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:19 AM - 11:49 AM

Minor Periods

4:16 PM - 5:46 PM
2:11 AM - 3:41 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: 7:11 AM
Sun Transit: 12:58 AM
Sunset: 6:45 PM
Daylight: 11 hrs 34 mins
Moonrise: 2:41 AM
Moon Transit: 9:49 AM
Moonset: 4:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:19 AM - 11:49 AM

Minor Periods

4:16 PM - 5:46 PM
2:11 AM - 3:41 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: 7:12 AM
Sun Transit: 12:57 AM
Sunset: 6:43 PM
Daylight: 11 hrs 32 mins
Moonrise: 3:52 AM
Moon Transit: 10:37 AM
Moonset: 5:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:07 AM - 12:37 AM

Minor Periods

4:41 PM - 6:11 PM
3:22 AM - 4:52 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: 7:12 AM
Sun Transit: 12:57 AM
Sunset: 6:43 PM
Daylight: 11 hrs 32 mins
Moonrise: 3:52 AM
Moon Transit: 10:37 AM
Moonset: 5:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:07 AM - 12:37 AM

Minor Periods

4:41 PM - 6:11 PM
3:22 AM - 4:52 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: 7:13 AM
Sun Transit: 12:57 AM
Sunset: 6:42 PM
Daylight: 11 hrs 29 mins
Moonrise: 5:01 AM
Moon Transit: 11:23 AM
Moonset: 5:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 AM
10:53 AM - 1:23 PM

Minor Periods

5:05 PM - 6:35 PM
4:31 AM - 6:01 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: 7:13 AM
Sun Transit: 12:57 AM
Sunset: 6:42 PM
Daylight: 11 hrs 29 mins
Moonrise: 5:01 AM
Moon Transit: 11:23 AM
Moonset: 5:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 AM
10:53 AM - 1:23 PM

Minor Periods

5:05 PM - 6:35 PM
4:31 AM - 6:01 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: 7:14 AM
Sun Transit: 12:57 AM
Sunset: 6:40 PM
Daylight: 11 hrs 27 mins
Moonrise: 6:08 AM
Moon Transit: 12:08 AM
Moonset: 5:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:58 AM - 3:28 AM
11:38 AM - 2:08 PM

Minor Periods

5:29 PM - 6:59 PM
5:38 AM - 7:08 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: 7:14 AM
Sun Transit: 12:57 AM
Sunset: 6:40 PM
Daylight: 11 hrs 27 mins
Moonrise: 6:08 AM
Moon Transit: 12:08 AM
Moonset: 5:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:58 AM - 3:28 AM
11:38 AM - 2:08 PM

Minor Periods

5:29 PM - 6:59 PM
5:38 AM - 7:08 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: 7:15 AM
Sun Transit: 12:57 AM
Sunset: 6:39 PM
Daylight: 11 hrs 24 mins
Moonrise: 7:14 AM
Moon Transit: 12:53 AM
Moonset: 6:23 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
12:23 AM - 2:53 PM

Minor Periods

5:53 PM - 7:23 PM
6:44 AM - 8:14 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: 7:15 AM
Sun Transit: 12:57 AM
Sunset: 6:39 PM
Daylight: 11 hrs 24 mins
Moonrise: 7:14 AM
Moon Transit: 12:53 AM
Moonset: 6:23 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
12:23 AM - 2:53 PM

Minor Periods

5:53 PM - 7:23 PM
6:44 AM - 8:14 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: 7:16 AM
Sun Transit: 12:56 AM
Sunset: 6:37 PM
Daylight: 11 hrs 22 mins
Moonrise: 8:20 AM
Moon Transit: 1:38 PM
Moonset: 6:49 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
1:08 PM - 3:38 PM

Minor Periods

6:19 PM - 7:49 PM
7:50 AM - 9:20 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: 7:16 AM
Sun Transit: 12:56 AM
Sunset: 6:37 PM
Daylight: 11 hrs 22 mins
Moonrise: 8:20 AM
Moon Transit: 1:38 PM
Moonset: 6:49 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
1:08 PM - 3:38 PM

Minor Periods

6:19 PM - 7:49 PM
7:50 AM - 9:20 AM

Action Rating: 4 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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