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

Current Water Temperature

37.2°F

Measurement Time: Sunday, December 28, 2025, 1:45 AM 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

34.4°F
Cloudy
Conditions: Cloudy
Humidity: 88%
Heat Index: 34.4°F
Feels Like: 28.4°F
Wind: S 4.3 mph
Wind Gusts: 10 mph
Wind Chill: 28.4°F
Air Pressure: 1022.35 millibars
Dew Point: 28.4°F
Chance of Precipitation: 10%
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 10 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Sun
H: 50°F
L: 35°F
Overcast
Mon
H: 57°F
L: 27°F
Sunny
Tue
H: 35°F
L: 24°F
Sunny
Wed
H: 44°F
L: 24°F
Light freezing rain
Thu
H: 40°F
L: 23°F

Air Quality

AQI: 1 - Good
PM2.5: 15.55 μg/m3
PM10: 15.65 μg/m3
Carbon Monoxide: 319.85 μg/m3
Nitrogen Dioxide: 24.05 μg/m3
Sulphur Dioxide: 8.55 μg/m3
Ozone: 29 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 12:11 AM
Sunset: 4:55 PM
Daylight: 9 hrs 26 mins
Moonrise: 12:12 AM
Moon Transit: 7:00 PM
Moonset: 12:47 AM
Moon Phase: First Quarter
Moon Illumination: 63.0%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
6:30 PM - 9:00 PM

Minor Periods

11:42 AM - 1:12 PM
12:17 AM - 1:47 AM

Action Rating: 3 out of 5

Sunday, December 28, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 39.5°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 15.16 μg/m3
PM10: 15.35 μg/m3
Carbon Monoxide: 313.17 μg/m3
Nitrogen Dioxide: 33.13 μg/m3
Sulphur Dioxide: 8.99 μg/m3
Ozone: 18.48 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 12:11 AM
Sunset: 4:55 PM
Daylight: 9 hrs 26 mins
Moonrise: 12:12 AM
Moon Transit: 7:00 PM
Moonset: 12:47 AM
Moon Phase: First Quarter
Moon Illumination: 63.0%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
6:30 PM - 9:00 PM

Minor Periods

11:42 AM - 1:12 PM
12:17 AM - 1:47 AM

Action Rating: 3 out of 5

Monday, December 29, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 42.5°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 20.1 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 7.02 μg/m3
PM10: 7.07 μg/m3
Carbon Monoxide: 205.45 μg/m3
Nitrogen Dioxide: 7.89 μg/m3
Sulphur Dioxide: 6.84 μg/m3
Ozone: 51.12 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 12:12 AM
Sunset: 4:56 PM
Daylight: 9 hrs 26 mins
Moonrise: 12:41 AM
Moon Transit: 7:50 PM
Moonset: 1:59 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

8:37 AM - 11:07 AM
7:20 PM - 9:50 PM

Minor Periods

12:11 AM - 1:41 PM
1:29 AM - 2:59 AM

Action Rating: 2 out of 5

Tuesday, December 30, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 27.9°F
Average Humidity: 46%
Chance of Rain: 0%
Wind: 19.7 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 2.26 μg/m3
PM10: 2.28 μg/m3
Carbon Monoxide: 167.25 μg/m3
Nitrogen Dioxide: 4.17 μg/m3
Sulphur Dioxide: 4.64 μg/m3
Ozone: 70.12 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 12:12 AM
Sunset: 4:56 PM
Daylight: 9 hrs 27 mins
Moonrise: 1:15 PM
Moon Transit: 8:48 PM
Moonset: 3:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.8%

Best Times for Fishing or Hunting

Major Periods

9:32 AM - 12:02 AM
8:18 PM - 10:48 PM

Minor Periods

12:45 AM - 2:15 PM
2:45 AM - 4:15 AM

Action Rating: 2 out of 5

Wednesday, December 31, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 31.6°F
Average Humidity: 51%
Chance of Rain: 0%
Wind: 13 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.71 μg/m3
PM10: 5.01 μg/m3
Carbon Monoxide: 170.12 μg/m3
Nitrogen Dioxide: 7.56 μg/m3
Sulphur Dioxide: 11.26 μg/m3
Ozone: 62.88 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:13 AM
Sunset: 4:57 PM
Daylight: 9 hrs 28 mins
Moonrise: 1:58 PM
Moon Transit: 9:50 PM
Moonset: 4:34 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

10:32 AM - 1:02 PM
9:20 PM - 11:50 PM

Minor Periods

1:28 PM - 2:58 PM
4:04 AM - 5:34 AM

Action Rating: 2 out of 5

Thursday, January 1, 2026

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 30.7°F
Average Humidity: 68%
Chance of Rain: 67%
Wind: 15 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 6.1 μg/m3
PM10: 6.13 μg/m3
Carbon Monoxide: 198.83 μg/m3
Nitrogen Dioxide: 9.57 μg/m3
Sulphur Dioxide: 8.08 μg/m3
Ozone: 50.08 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:13 AM
Sunset: 4:58 PM
Daylight: 9 hrs 28 mins
Moonrise: 2:53 PM
Moon Transit: 10:56 PM
Moonset: 5:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

11:37 AM - 2:07 PM
12:00 AM - 12:00 AM

Minor Periods

2:23 PM - 3:53 PM
5:21 AM - 6:51 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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