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

Current Water Temperature

86.9°F

Measurement Time: Sunday, July 5, 2026, 9:55 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

72.5°F
Overcast
Overcast
76.7°F
78.3°F
100%
N 3.4 mph
6.1 mph
74.3°F
71°F
0.03 in
100%
9 mi
1014 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 88°F
L: 68°F
Patchy rain nearby
Tue
H: 75°F
L: 68°F
Patchy rain nearby
Wed
H: 80°F
L: 67°F
Mist
Thu
H: 90°F
L: 67°F
Sunny
Fri
H: 86°F
L: 66°F

Air Quality

AQI: 1 - Good
PM2.5: 15.1 μg/m3
PM10: 15.5 μg/m3
Carbon Monoxide: 143 μg/m3
Nitrogen Dioxide: 8.9 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:15 PM
Sunset: 8:40 PM
Daylight: 14 hrs 50 mins
Moonrise: 12:50 AM
Moon Transit: 5:58 AM
Moonset: 12:18 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
12:45 AM - 3:15 PM

Minor Periods

11:48 AM - 1:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, July 6, 2026

Weather Forecast

Sunny
87.7°F
68.3°F
78.3°F
81%
0.52 in
79%
0%
7.6 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 13.3 μg/m3
PM10: 13.81 μg/m3
Carbon Monoxide: 142.38 μg/m3
Nitrogen Dioxide: 5.63 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 92.29 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:15 PM
Sunset: 8:40 PM
Daylight: 14 hrs 50 mins
Moonrise: 12:50 AM
Moon Transit: 5:58 AM
Moonset: 12:18 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
12:45 AM - 3:15 PM

Minor Periods

11:48 AM - 1:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 7, 2026

Weather Forecast

Patchy rain nearby
75.3°F
67.9°F
71°F
94%
0.15 in
87%
0%
5.4 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 6.66 μg/m3
PM10: 6.79 μg/m3
Carbon Monoxide: 152.46 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 83.29 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:15 PM
Sunset: 8:40 PM
Daylight: 14 hrs 49 mins
Moonrise: 12:13 AM
Moon Transit: 12:00 AM
Moonset: 1:24 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:18 PM - 10:48 PM

Minor Periods

12:54 AM - 2:24 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, July 8, 2026

Weather Forecast

Patchy rain nearby
80.4°F
66.9°F
71.8°F
88%
0.05 in
71%
0%
5.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.01 μg/m3
PM10: 7.08 μg/m3
Carbon Monoxide: 162.83 μg/m3
Nitrogen Dioxide: 8.19 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 58.63 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:15 PM
Sunset: 8:39 PM
Daylight: 14 hrs 48 mins
Moonrise: 12:38 AM
Moon Transit: 7:29 AM
Moonset: 2:35 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

6:59 AM - 9:29 AM
9:08 PM - 11:38 PM

Minor Periods

2:05 PM - 3:35 PM
12:08 AM - 1:38 AM

Action Rating: 3 out of 5

Thursday, July 9, 2026

Weather Forecast

Mist
89.5°F
67°F
74.2°F
85%
0.76 in
84%
0%
11.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 7.44 μg/m3
PM10: 7.64 μg/m3
Carbon Monoxide: 185.28 μg/m3
Nitrogen Dioxide: 5.87 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 80.25 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:15 PM
Sunset: 8:39 PM
Daylight: 14 hrs 47 mins
Moonrise: 1:07 AM
Moon Transit: 8:21 AM
Moonset: 3:49 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
12:00 AM - 12:00 AM

Minor Periods

3:19 PM - 4:49 PM
12:37 AM - 2:07 AM

Action Rating: 2 out of 5

Friday, July 10, 2026

Weather Forecast

Sunny
85.6°F
66.3°F
73.9°F
84%
0.08 in
63%
0%
8.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 5.34 μg/m3
PM10: 5.4 μg/m3
Carbon Monoxide: 238.44 μg/m3
Nitrogen Dioxide: 4.42 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 52.56 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:15 PM
Sunset: 8:39 PM
Daylight: 14 hrs 46 mins
Moonrise: 1:42 AM
Moon Transit: 9:18 AM
Moonset: 5:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:48 AM - 11:18 AM
12:00 AM - 12:00 AM

Minor Periods

4:36 PM - 6:06 PM
1:12 AM - 2:42 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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