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

Current Water Temperature

80.2°F

Measurement Time: Monday, September 14, 2026, 2:55 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

67°F

Conditions: Mostly Sunny

Humidity: 84%

Wind: N 10 mph

Dew Point: 62°F

Weather Forecast

Today
79°F - Sunny

Tonight
52°F - Mostly Clear

Tuesday
81°F - Sunny

Tuesday Night
56°F - Mostly Clear

Wednesday
86°F - Sunny

Wednesday Night
63°F - Mostly Clear

Thursday
88°F - Sunny

Thursday Night
67°F - Partly Cloudy

Friday
87°F - Mostly Sunny then Slight Chance Rain Showers

Friday Night
64°F - Slight Chance Rain Showers

Saturday
84°F - Partly Sunny then Slight Chance Rain Showers

Saturday Night
64°F - Chance Rain Showers

Sunday
81°F - Chance Rain Showers

Sunday Night
61°F - Chance Showers And Thunderstorms

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:54 AM
Sun Transit: 1:04 PM
Sunset: 7:13 PM
Daylight: 12 hrs 19 mins

Moonrise: 2:41 PM
Moon Transit: 7:05 PM
Moonset: 11:31 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:53 AM - 10:23 AM
6:35 PM - 9:05 PM

Minor Periods

12:00 AM - 12:00 AM
2:11 PM - 3:41 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:54 AM
Sun Transit: 1:04 PM
Sunset: 7:13 PM
Daylight: 12 hrs 19 mins

Moonrise: 2:41 PM
Moon Transit: 7:05 PM
Moonset: 11:31 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:53 AM - 10:23 AM
6:35 PM - 9:05 PM

Minor Periods

12:00 AM - 12:00 AM
2:11 PM - 3:41 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:55 AM
Sun Transit: 1:03 PM
Sunset: 7:12 PM
Daylight: 12 hrs 17 mins

Moonrise: 3:29 PM
Moon Transit: 7:56 PM
Moonset: 12:31 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
7:26 PM - 9:56 PM

Minor Periods

2:59 PM - 4:29 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:55 AM
Sun Transit: 1:03 PM
Sunset: 7:12 PM
Daylight: 12 hrs 17 mins

Moonrise: 3:29 PM
Moon Transit: 7:56 PM
Moonset: 12:31 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
7:26 PM - 9:56 PM

Minor Periods

2:59 PM - 4:29 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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

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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