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

Current Water Temperature

66.6°F

Measurement Time: Saturday, September 26, 2026, 10:55 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

69°F
Chance Light Rain
Chance Light Rain
57%
N 17 mph
53°F

Weather Forecast

Chance Light Rain
This Afternoon
70°F - Chance Light Rain
Chance Light Rain
Tonight
59°F - Chance Light Rain
Chance Light Rain then Rain Showers Likely
Sunday
66°F - Chance Light Rain then Rain Showers Likely
Chance Rain Showers then Cloudy
Sunday Night
59°F - Chance Rain Showers then Cloudy
Mostly Cloudy
Monday
71°F - Mostly Cloudy
Mostly Cloudy
Monday Night
61°F - Mostly Cloudy
Partly Sunny
Tuesday
75°F - Partly Sunny
Partly Cloudy
Tuesday Night
60°F - Partly Cloudy
Mostly Sunny
Wednesday
80°F - Mostly Sunny
Mostly Cloudy
Wednesday Night
60°F - Mostly Cloudy
Mostly Sunny
Thursday
82°F - Mostly Sunny
Mostly Cloudy
Thursday Night
63°F - Mostly Cloudy
Partly Sunny then Slight Chance Rain Showers
Friday
79°F - Partly Sunny then Slight Chance Rain Showers
Chance Rain Showers
Friday Night
61°F - Chance Rain Showers

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

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: 7:03 AM
Sun Transit: 1:01 PM
Sunset: 6:59 PM
Daylight: 11 hrs 57 mins
Moonrise: 7:15 PM
Moon Transit: 1:20 AM
Moonset: 8:02 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
2:56 PM - 5:26 PM

Minor Periods

6:45 PM - 8:15 PM
7:32 AM - 9:02 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: 7:03 AM
Sun Transit: 1:01 PM
Sunset: 6:59 PM
Daylight: 11 hrs 57 mins
Moonrise: 7:15 PM
Moon Transit: 1:20 AM
Moonset: 8:02 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
2:56 PM - 5:26 PM

Minor Periods

6:45 PM - 8:15 PM
7:32 AM - 9:02 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: 7:03 AM
Sun Transit: 1:00 PM
Sunset: 6:57 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:45 PM
Moon Transit: 2:08 AM
Moonset: 9:14 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:38 AM - 4:08 AM
3:46 PM - 6:16 PM

Minor Periods

7:15 PM - 8:45 PM
8:44 AM - 10:14 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: 7:03 AM
Sun Transit: 1:00 PM
Sunset: 6:57 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:45 PM
Moon Transit: 2:08 AM
Moonset: 9:14 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:38 AM - 4:08 AM
3:46 PM - 6:16 PM

Minor Periods

7:15 PM - 8:45 PM
8:44 AM - 10:14 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: 7:04 AM
Sun Transit: 1:00 PM
Sunset: 6:56 PM
Daylight: 11 hrs 52 mins
Moonrise: 8:20 PM
Moon Transit: 3:00 AM
Moonset: 10:28 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
4:41 PM - 7:11 PM

Minor Periods

7:50 PM - 9:20 PM
9:58 AM - 11:28 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: 7:04 AM
Sun Transit: 1:00 PM
Sunset: 6:56 PM
Daylight: 11 hrs 52 mins
Moonrise: 8:20 PM
Moon Transit: 3:00 AM
Moonset: 10:28 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
4:41 PM - 7:11 PM

Minor Periods

7:50 PM - 9:20 PM
9:58 AM - 11:28 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: 7:05 AM
Sun Transit: 1:00 PM
Sunset: 6:54 PM
Daylight: 11 hrs 49 mins
Moonrise: 9:03 PM
Moon Transit: 3:56 AM
Moonset: 11:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:26 AM - 5:56 AM
5:39 PM - 8:09 PM

Minor Periods

8:33 PM - 10:03 PM
11:13 AM - 12:43 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: 7:05 AM
Sun Transit: 1:00 PM
Sunset: 6:54 PM
Daylight: 11 hrs 49 mins
Moonrise: 9:03 PM
Moon Transit: 3:56 AM
Moonset: 11:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:26 AM - 5:56 AM
5:39 PM - 8:09 PM

Minor Periods

8:33 PM - 10:03 PM
11:13 AM - 12:43 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: 7:06 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 47 mins
Moonrise: 9:57 PM
Moon Transit: 4:56 AM
Moonset: 12:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:26 AM - 6:56 AM
6:41 PM - 9:11 PM

Minor Periods

9:27 PM - 10:57 PM
12:26 AM - 1:56 PM

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: 7:06 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 47 mins
Moonrise: 9:57 PM
Moon Transit: 4:56 AM
Moonset: 12:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:26 AM - 6:56 AM
6:41 PM - 9:11 PM

Minor Periods

9:27 PM - 10:57 PM
12:26 AM - 1:56 PM

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: 7:07 AM
Sun Transit: 1:00 PM
Sunset: 6:51 PM
Daylight: 11 hrs 44 mins
Moonrise: 11:01 PM
Moon Transit: 6:00 AM
Moonset: 2:01 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
7:44 PM - 10:14 PM

Minor Periods

12:00 AM - 12:00 AM
1:31 PM - 3:01 PM

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: 7:07 AM
Sun Transit: 1:00 PM
Sunset: 6:51 PM
Daylight: 11 hrs 44 mins
Moonrise: 11:01 PM
Moon Transit: 6:00 AM
Moonset: 2:01 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
7:44 PM - 10:14 PM

Minor Periods

12:00 AM - 12:00 AM
1:31 PM - 3:01 PM

Action Rating: 2 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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