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

Current Water Temperature

73.8°F

Measurement Time: Monday, September 1, 2025, 10:45 AM EDT

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 / 66 meters

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 (26.0 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 (35.0 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

79.3°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 42%
Feels Like: 79.4°F
Wind: E 8.7 mph
Wind Gusts: 10 mph
Pressure: 30.22 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 6.7

Five Day Weather Forecast

Sunny
Mon
H: 82°F
L: 48°F
Partly Cloudy
Tue
H: 74°F
L: 53°F
Partly Cloudy
Wed
H: 77°F
L: 62°F
Moderate rain
Thu
H: 87°F
L: 62°F
Moderate rain
Fri
H: 83°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 12.58 μg/m3
PM10: 12.77 μg/m3
Carbon Monoxide: 357.05 μg/m3
Nitrogen Dioxide: 14.8 μg/m3
Sulphur Dioxide: 4.26 μg/m3
Ozone: 120 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:10 PM
Sunset: 7:40 PM
Daylight: 13 hrs 1 mins
Moonrise: 3:59 PM
Moon Transit: 8:21 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

9:07 AM - 11:37 AM
7:51 PM - 10:21 PM

Minor Periods

3:29 PM - 4:59 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

This is only a test for monitoring of vital dissemination systems.

Effective: Mon September 1, 2025, 2:23 PM
Expires: Mon September 1, 2025, 2:33 PM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.
Monday, September 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 65.4°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 1.7

Air Quality

AQI: 2 - Moderate
PM2.5: 16.9 μg/m3
PM10: 17.04 μg/m3
Carbon Monoxide: 418.77 μg/m3
Nitrogen Dioxide: 29.52 μg/m3
Sulphur Dioxide: 6.44 μg/m3
Ozone: 75.04 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:10 PM
Sunset: 7:40 PM
Daylight: 13 hrs 1 mins
Moonrise: 3:59 PM
Moon Transit: 8:21 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

9:07 AM - 11:37 AM
7:51 PM - 10:21 PM

Minor Periods

3:29 PM - 4:59 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, September 2, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 65.9°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 1.7

Air Quality

AQI: 2 - Moderate
PM2.5: 25.05 μg/m3
PM10: 25.72 μg/m3
Carbon Monoxide: 401.45 μg/m3
Nitrogen Dioxide: 37.34 μg/m3
Sulphur Dioxide: 6.42 μg/m3
Ozone: 86.16 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:09 PM
Sunset: 7:39 PM
Daylight: 12 hrs 58 mins
Moonrise: 4:50 PM
Moon Transit: 9:15 PM
Moonset: 12:44 AM
Moon Phase: First Quarter
Moon Illumination: 74.7%

Best Times for Fishing or Hunting

Major Periods

10:01 AM - 12:31 AM
8:45 PM - 11:15 PM

Minor Periods

4:20 PM - 5:50 PM
12:14 AM - 1:44 AM

Action Rating: 2 out of 5

Wednesday, September 3, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 69°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 9.8 mph
UV Index: 0.4

Air Quality

AQI: 2 - Moderate
PM2.5: 20.33 μg/m3
PM10: 20.58 μg/m3
Carbon Monoxide: 434.6 μg/m3
Nitrogen Dioxide: 16.41 μg/m3
Sulphur Dioxide: 5.14 μg/m3
Ozone: 102.72 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 1:09 PM
Sunset: 7:37 PM
Daylight: 12 hrs 56 mins
Moonrise: 5:33 PM
Moon Transit: 10:09 PM
Moonset: 1:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.9%

Best Times for Fishing or Hunting

Major Periods

10:55 AM - 1:25 PM
12:00 AM - 12:00 AM

Minor Periods

5:03 PM - 6:33 PM
1:14 AM - 2:44 AM

Action Rating: 2 out of 5

Thursday, September 4, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 71.1°F
Average Humidity: 66%
Chance of Rain: 77%
Wind: 18.6 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 18.34 μg/m3
PM10: 18.71 μg/m3
Carbon Monoxide: 335.44 μg/m3
Nitrogen Dioxide: 15.09 μg/m3
Sulphur Dioxide: 5.72 μg/m3
Ozone: 105.4 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 1:09 PM
Sunset: 7:35 PM
Daylight: 12 hrs 53 mins
Moonrise: 6:10 PM
Moon Transit: 11:01 PM
Moonset: 2:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

11:49 AM - 2:19 PM
12:00 AM - 12:00 AM

Minor Periods

5:40 PM - 7:10 PM
2:21 AM - 3:51 AM

Action Rating: 3 out of 5

Friday, September 5, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 70°F
Average Humidity: 70%
Chance of Rain: 86%
Wind: 8.5 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 8.07 μg/m3
PM10: 8.44 μg/m3
Carbon Monoxide: 325.32 μg/m3
Nitrogen Dioxide: 10.47 μg/m3
Sulphur Dioxide: 3.43 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:08 PM
Sunset: 7:34 PM
Daylight: 12 hrs 51 mins
Moonrise: 6:42 PM
Moon Transit: 11:52 PM
Moonset: 4:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 PM
12:00 AM - 12:00 AM

Minor Periods

6:12 PM - 7:42 PM
3:31 AM - 5:01 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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