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

Current Water Temperature

76.6°F

Measurement Time: Friday, June 19, 2026, 11:55 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

63°F
Partly cloudy
Partly cloudy
63°F
63.5°F
82%
WNW 5.4 mph
11.3 mph
63.5°F
51°F
0 in
50%
9 mi
1013 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 90°F
L: 60°F
Sunny
Sun
H: 84°F
L: 53°F
Moderate rain
Mon
H: 73°F
L: 60°F
Patchy rain nearby
Tue
H: 80°F
L: 62°F
Patchy rain nearby
Wed
H: 80°F
L: 53°F

Air Quality

AQI: 1 - Good
PM2.5: 9.7 μg/m3
PM10: 10.2 μg/m3
Carbon Monoxide: 128 μg/m3
Nitrogen Dioxide: 5.7 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 56 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:11 PM
Sunset: 8:40 PM
Daylight: 14 hrs 57 mins
Moonrise: 11:59 AM
Moon Transit: 6:26 PM
Moonset: 12:20 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
5:56 PM - 8:26 PM

Minor Periods

11:29 AM - 12:59 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Small Craft Advisory issued June 19 at 10:03PM EDT until June 20 at 12:00AM EDT by NWS Baltimore MD/Washington DC

Effective: Fri June 19, 2026, 10:03 PM
Expires: Sat June 20, 2026, 6:15 AM

* WHAT...For the first Small Craft Advisory, northwest winds around 10 kt with gusts up to 20 kt. For the second Small Craft Advisory, west winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE...Tidal Potomac from Key Bridge to Indian Head MD and Patapsco River including Baltimore Harbor. * WHEN...For the first Small Craft Advisory, until midnight EDT tonight. For the second Small Craft Advisory, from 11 AM to 8 PM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued June 19 at 10:03PM EDT until June 20 at 8:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Fri June 19, 2026, 10:03 PM
Expires: Sat June 20, 2026, 6:15 AM

* WHAT...For the first Small Craft Advisory, northwest winds around 10 kt with gusts up to 20 kt. For the second Small Craft Advisory, west winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE...Tidal Potomac from Key Bridge to Indian Head MD and Patapsco River including Baltimore Harbor. * WHEN...For the first Small Craft Advisory, until midnight EDT tonight. For the second Small Craft Advisory, from 11 AM to 8 PM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Saturday, June 20, 2026

Weather Forecast

Sunny
89.6°F
59.7°F
73.4°F
50%
0 in
2%
0%
15.4 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 7.63 μg/m3
PM10: 8.11 μg/m3
Carbon Monoxide: 115.21 μg/m3
Nitrogen Dioxide: 2.73 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 81.42 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:11 PM
Sunset: 8:40 PM
Daylight: 14 hrs 57 mins
Moonrise: 11:59 AM
Moon Transit: 6:26 PM
Moonset: 12:20 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
5:56 PM - 8:26 PM

Minor Periods

11:29 AM - 12:59 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 21, 2026

Weather Forecast

Sunny
84.4°F
53.4°F
68.5°F
62%
0 in
4%
0%
8.3 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 6.6 μg/m3
PM10: 7.08 μg/m3
Carbon Monoxide: 114.25 μg/m3
Nitrogen Dioxide: 2.94 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 86.25 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:12 PM
Sunset: 8:41 PM
Daylight: 14 hrs 57 mins
Moonrise: 1:04 PM
Moon Transit: 7:09 PM
Moonset: 12:44 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

8:01 AM - 10:31 AM
6:39 PM - 9:09 PM

Minor Periods

12:34 AM - 2:04 PM
12:14 AM - 1:44 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Moderate rain
73.4°F
60°F
66°F
91%
0.5 in
92%
0%
11.4 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 6.56 μg/m3
PM10: 6.75 μg/m3
Carbon Monoxide: 135.33 μg/m3
Nitrogen Dioxide: 5.58 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 76.25 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:12 PM
Sunset: 8:41 PM
Daylight: 14 hrs 57 mins
Moonrise: 2:08 PM
Moon Transit: 7:52 PM
Moonset: 1:05 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

8:43 AM - 11:13 AM
7:22 PM - 9:52 PM

Minor Periods

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

Action Rating: 2 out of 5

Tuesday, June 23, 2026

Weather Forecast

Patchy rain nearby
80.4°F
62.3°F
68.9°F
75%
0.08 in
58%
0%
8.5 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 2.33 μg/m3
PM10: 2.4 μg/m3
Carbon Monoxide: 120.37 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:12 PM
Sunset: 8:41 PM
Daylight: 14 hrs 57 mins
Moonrise: 3:10 PM
Moon Transit: 8:34 PM
Moonset: 1:28 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

9:26 AM - 11:56 AM
8:04 PM - 10:34 PM

Minor Periods

2:40 PM - 4:10 PM
12:58 AM - 2:28 AM

Action Rating: 2 out of 5

Wednesday, June 24, 2026

Weather Forecast

Patchy rain nearby
80°F
52.8°F
65°F
72%
0.09 in
57%
0%
7.8 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 3.37 μg/m3
PM10: 3.44 μg/m3
Carbon Monoxide: 143.89 μg/m3
Nitrogen Dioxide: 4.43 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 57.11 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:12 PM
Sunset: 8:41 PM
Daylight: 14 hrs 56 mins
Moonrise: 4:13 PM
Moon Transit: 9:18 PM
Moonset: 1:52 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

10:09 AM - 12:39 AM
8:48 PM - 11:18 PM

Minor Periods

3:43 PM - 5:13 PM
1:22 AM - 2:52 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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