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

Current Water Temperature

55.0°F 12.8°C
Cold Thermal Gear Required
55.0°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Tuesday, November 10, 2026, 9:55 PM EST

Temperature Locations

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Local Points of Interest

Paton Island; Heaters island; Chesapeake and Ohio Canal National Historic Park

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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

45.3°F
Clear
Conditions: Clear
Humidity: 72%
Feels Like: 39.7°F
Wind: NW 6.3 mph
Wind Gusts: 8.1 mph
Pressure: 30 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 13 mi
UV Index: 0

Weather Forecast

Overcast
Wed
H: 68°F
L: 44°F
Fog
Thu
H: 59°F
L: 44°F
Overcast
Fri
H: 51°F
L: 34°F
Overcast
Sat
H: 49°F
L: 34°F
Overcast
Sun
H: 51°F
L: 33°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
11.6 μg/m³
Good
PM10
11.6 μg/m³
Good
Ozone (O3)
35 μg/m³
Photochemical
NO2
17.7 μg/m³
Nitrogen Dioxide
SO2
3.1 μg/m³
Sulfur Dioxide
CO
232 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 9m daylight
Sunrise 6:49 AM
Solar Noon 11:54 AM
Sunset 4:59 PM
Moon
New • 2%
Moonrise 9:20 AM
Transit 1:49 PM
Moonset 6:16 PM

Best Times for Fishing or Hunting

Major Periods

12:53 AM - 3:23 AM
1:19 PM - 3:49 PM

Minor Periods

8:50 AM - 10:20 AM
5:46 PM - 7:16 PM
Action Rating:
Good Action 3/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 54.9°F
Average Humidity: 58%
Chance of Rain: 2%
Wind: 7.5 mph
UV Index: 3.5

Air Quality

EPA Index 2 • Moderate
PM2.5
9.6 μg/m³
Good
PM10
9.7 μg/m³
Good
Ozone (O3)
52.5 μg/m³
Photochemical
NO2
14.6 μg/m³
Nitrogen Dioxide
SO2
3.5 μg/m³
Sulfur Dioxide
CO
241.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 9m daylight
Sunrise 6:49 AM
Solar Noon 11:54 AM
Sunset 4:59 PM
Moon
New • 2%
Moonrise 9:20 AM
Transit 1:49 PM
Moonset 6:16 PM

Best Times for Fishing or Hunting

Major Periods

12:53 AM - 3:23 AM
1:19 PM - 3:49 PM

Minor Periods

8:50 AM - 10:20 AM
5:46 PM - 7:16 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 51.1°F
Average Humidity: 80%
Chance of Rain: 26%
Wind: 14.9 mph
UV Index: 2.1

Air Quality

EPA Index 2 • Moderate
PM2.5
6.7 μg/m³
Good
PM10
7 μg/m³
Good
Ozone (O3)
55.5 μg/m³
Photochemical
NO2
9.6 μg/m³
Nitrogen Dioxide
SO2
2 μg/m³
Sulfur Dioxide
CO
187.1 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 7m daylight
Sunrise 6:51 AM
Solar Noon 11:54 AM
Sunset 4:58 PM
Moon
Waxing Crescent • 6%
Moonrise 10:14 AM
Transit 2:40 PM
Moonset 7:08 PM

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
2:10 PM - 4:40 PM

Minor Periods

9:44 AM - 11:14 AM
6:38 PM - 8:08 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 43°F
Average Humidity: 60%
Chance of Rain: 13%
Wind: 16.3 mph
UV Index: 3.3

Air Quality

EPA Index 1 • Good
PM2.5
0.8 μg/m³
Good
PM10
0.9 μg/m³
Good
Ozone (O3)
64.6 μg/m³
Photochemical
NO2
2.8 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
135 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 5m daylight
Sunrise 6:52 AM
Solar Noon 11:54 AM
Sunset 4:57 PM
Moon
Waxing Crescent • 13%
Moonrise 11:00 AM
Transit 3:31 PM
Moonset 8:06 PM

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
3:01 PM - 5:31 PM

Minor Periods

10:30 AM - 12:00 PM
7:36 PM - 9:06 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 39.4°F
Average Humidity: 66%
Chance of Rain: 1%
Wind: 19 mph
UV Index: 3.3

Air Quality

EPA Index 1 • Good
PM2.5
1.3 μg/m³
Good
PM10
1.3 μg/m³
Good
Ozone (O3)
57.6 μg/m³
Photochemical
NO2
3.6 μg/m³
Nitrogen Dioxide
SO2
1.3 μg/m³
Sulfur Dioxide
CO
135.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 3m daylight
Sunrise 6:53 AM
Solar Noon 11:54 AM
Sunset 4:56 PM
Moon
Waxing Crescent • 21%
Moonrise 11:39 AM
Transit 4:20 PM
Moonset 9:06 PM

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
3:50 PM - 6:20 PM

Minor Periods

11:09 AM - 12:39 PM
8:36 PM - 10:06 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 40.1°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 13.7 mph
UV Index: 3.4

Air Quality

EPA Index 1 • Good
PM2.5
1.6 μg/m³
Good
PM10
1.7 μg/m³
Good
Ozone (O3)
50.8 μg/m³
Photochemical
NO2
3.8 μg/m³
Nitrogen Dioxide
SO2
1 μg/m³
Sulfur Dioxide
CO
168.9 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 2m daylight
Sunrise 6:54 AM
Solar Noon 11:54 AM
Sunset 4:56 PM
Moon
Waxing Crescent • 31%
Moonrise 12:12 PM
Transit 5:06 PM
Moonset 10:08 PM

Best Times for Fishing or Hunting

Major Periods

4:13 AM - 6:43 AM
4:36 PM - 7:06 PM

Minor Periods

11:42 AM - 1:12 PM
9:38 PM - 11:08 PM
Action Rating:
Very Good 4/5
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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