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

Current Water Temperature

75.9°F

Measurement Time: Sunday, September 20, 2026, 6:55 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

74°F
Scattered Rain Showers
Scattered Rain Showers
82%
S 12 mph
68°F

Weather Forecast

Showers And Thunderstorms
Today
82°F - Showers And Thunderstorms
Showers And Thunderstorms
Tonight
61°F - Showers And Thunderstorms
Chance Rain Showers
Monday
72°F - Chance Rain Showers
Rain Showers
Monday Night
57°F - Rain Showers
Rain Showers
Tuesday
64°F - Rain Showers
Showers And Thunderstorms Likely
Tuesday Night
52°F - Showers And Thunderstorms Likely
Rain Showers Likely
Wednesday
62°F - Rain Showers Likely
Rain Showers Likely
Wednesday Night
52°F - Rain Showers Likely
Chance Rain Showers
Thursday
64°F - Chance Rain Showers
Chance Rain Showers
Thursday Night
50°F - Chance Rain Showers
Slight Chance Rain Showers
Friday
66°F - Slight Chance Rain Showers
Partly Cloudy
Friday Night
50°F - Partly Cloudy
Mostly Sunny
Saturday
69°F - Mostly Sunny
Partly Cloudy
Saturday Night
50°F - Partly Cloudy

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:03 PM
Sunset: 7:10 PM
Daylight: 12 hrs 14 mins
Moonrise: 4:10 PM
Moon Transit: 8:46 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:35 AM - 12:05 AM
8:16 PM - 10:46 PM

Minor Periods

3:40 PM - 5:10 PM
12:00 AM - 12:00 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: 6:56 AM
Sun Transit: 1:03 PM
Sunset: 7:10 PM
Daylight: 12 hrs 14 mins
Moonrise: 4:10 PM
Moon Transit: 8:46 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:35 AM - 12:05 AM
8:16 PM - 10:46 PM

Minor Periods

3:40 PM - 5:10 PM
12:00 AM - 12:00 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: 6:56 AM
Sun Transit: 1:03 PM
Sunset: 7:10 PM
Daylight: 12 hrs 14 mins
Moonrise: 4:10 PM
Moon Transit: 8:46 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:35 AM - 12:05 AM
8:16 PM - 10:46 PM

Minor Periods

3:40 PM - 5:10 PM
12:00 AM - 12:00 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: 6:57 AM
Sun Transit: 1:03 PM
Sunset: 7:09 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:44 PM
Moon Transit: 9:34 PM
Moonset: 1:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:24 AM - 12:54 AM
9:04 PM - 11:34 PM

Minor Periods

4:14 PM - 5:44 PM
12:58 AM - 2:28 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: 6:57 AM
Sun Transit: 1:03 PM
Sunset: 7:09 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:44 PM
Moon Transit: 9:34 PM
Moonset: 1:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:24 AM - 12:54 AM
9:04 PM - 11:34 PM

Minor Periods

4:14 PM - 5:44 PM
12:58 AM - 2:28 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: 6:58 AM
Sun Transit: 1:02 PM
Sunset: 7:07 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:13 PM
Moon Transit: 10:21 PM
Moonset: 2:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

11:11 AM - 1:41 PM
12:00 AM - 12:00 AM

Minor Periods

4:43 PM - 6:13 PM
2:02 AM - 3:32 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: 6:58 AM
Sun Transit: 1:02 PM
Sunset: 7:07 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:13 PM
Moon Transit: 10:21 PM
Moonset: 2:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

11:11 AM - 1:41 PM
12:00 AM - 12:00 AM

Minor Periods

4:43 PM - 6:13 PM
2:02 AM - 3:32 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: 6:59 AM
Sun Transit: 1:02 PM
Sunset: 7:05 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:39 PM
Moon Transit: 11:05 PM
Moonset: 3:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

11:56 AM - 2:26 PM
12:00 AM - 12:00 AM

Minor Periods

5:09 PM - 6:39 PM
3:06 AM - 4:36 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: 6:59 AM
Sun Transit: 1:02 PM
Sunset: 7:05 PM
Daylight: 12 hrs 7 mins
Moonrise: 5:39 PM
Moon Transit: 11:05 PM
Moonset: 3:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

11:56 AM - 2:26 PM
12:00 AM - 12:00 AM

Minor Periods

5:09 PM - 6:39 PM
3:06 AM - 4:36 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: 7:00 AM
Sun Transit: 1:02 PM
Sunset: 7:04 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:03 PM
Moon Transit: 11:49 PM
Moonset: 4:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 PM
12:00 AM - 12:00 AM

Minor Periods

5:33 PM - 7:03 PM
4:12 AM - 5:42 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: 7:00 AM
Sun Transit: 1:02 PM
Sunset: 7:04 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:03 PM
Moon Transit: 11:49 PM
Moonset: 4:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 PM
12:00 AM - 12:00 AM

Minor Periods

5:33 PM - 7:03 PM
4:12 AM - 5:42 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: 7:01 AM
Sun Transit: 1:01 PM
Sunset: 7:02 PM
Daylight: 12 hrs 2 mins
Moonrise: 6:27 PM
Moon Transit: 12:00 AM
Moonset: 5:47 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:24 PM - 3:54 PM

Minor Periods

5:57 PM - 7:27 PM
5:17 AM - 6:47 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: 7:01 AM
Sun Transit: 1:01 PM
Sunset: 7:02 PM
Daylight: 12 hrs 2 mins
Moonrise: 6:27 PM
Moon Transit: 12:00 AM
Moonset: 5:47 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:24 PM - 3:54 PM

Minor Periods

5:57 PM - 7:27 PM
5:17 AM - 6:47 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: 7:02 AM
Sun Transit: 1:01 PM
Sunset: 7:01 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:50 PM
Moon Transit: 8:33 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

6:20 PM - 7:50 PM
6:24 AM - 7:54 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: 7:02 AM
Sun Transit: 1:01 PM
Sunset: 7:01 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:50 PM
Moon Transit: 8:33 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

6:20 PM - 7:50 PM
6:24 AM - 7:54 AM

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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