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

Current Water Temperature

34.0°F

Measurement Time: Wednesday, December 31, 2025, 10:45 PM EST

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

35.8°F
Partly cloudy
Partly cloudy
30.2°F
32.4°F
75%
SW 6.7 mph
14.1 mph
26.5°F
25.2°F
0 in
75%
9 mi
1004 mbar
0

Five Day Weather Forecast

Light freezing rain
Thu
H: 35°F
L: 23°F
Sunny
Fri
H: 34°F
L: 23°F
Overcast
Sat
H: 35°F
L: 25°F
Sunny
Sun
H: 40°F
L: 26°F
Overcast
Mon
H: 38°F
L: 23°F

Air Quality

AQI: 1 - Good
PM2.5: 2.05 μg/m3
PM10: 2.05 μg/m3
Carbon Monoxide: 158.85 μg/m3
Nitrogen Dioxide: 3.05 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 79 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

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

Effective: Thu January 1, 2026, 1:26 AM
Expires: Thu January 1, 2026, 1:36 AM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.


Special Weather Statement issued December 31 at 11:25PM EST by NWS Baltimore MD/Washington DC

Effective: Wed December 31, 2025, 11:25 PM
Expires: Thu January 1, 2026, 4:00 AM

A line of snow showers will likely pass through the area along a cold front between 2 AM and 4 AM overnight. The heavier snow showers will last about 10 to 20 minutes with visibilities locally reduced to near one-half mile. Snow may coat the ground and temperatures will quickly fall below freezing behind this line. Therefore, any wet or slushy untreated surfaces may become icy into Thursday morning. Please use extra caution if you are travelling during this time. Drive slowly and leave plenty of distance between you and the vehicle in front of you so you are prepared for any sudden changes in visibility.


Thursday, January 1, 2026

Weather Forecast

Light freezing rain
34.7°F
22.8°F
29.3°F
49%
0.01 in
70%
3%
15.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.73 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 186.97 μg/m3
Nitrogen Dioxide: 8.18 μg/m3
Sulphur Dioxide: 6.31 μg/m3
Ozone: 60.84 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

Friday, January 2, 2026

Weather Forecast

Sunny
33.6°F
23.4°F
27.5°F
41%
0 in
0%
0%
9.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 9.33 μg/m3
PM10: 9.54 μg/m3
Carbon Monoxide: 200.01 μg/m3
Nitrogen Dioxide: 16.45 μg/m3
Sulphur Dioxide: 8.91 μg/m3
Ozone: 51.56 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:14 AM
Sunset: 4:59 PM
Daylight: 9 hrs 29 mins
Moonrise: 4:00 PM
Moon Transit: 12:00 AM
Moonset: 7:02 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:44 AM - 3:14 PM

Minor Periods

3:30 PM - 5:00 PM
6:32 AM - 8:02 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Overcast
34.9°F
24.8°F
29.5°F
59%
0 in
0%
0%
4.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 10.16 μg/m3
PM10: 10.25 μg/m3
Carbon Monoxide: 228.45 μg/m3
Nitrogen Dioxide: 15.28 μg/m3
Sulphur Dioxide: 9.77 μg/m3
Ozone: 55.24 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:14 AM
Sunset: 5:00 PM
Daylight: 9 hrs 30 mins
Moonrise: 5:15 PM
Moon Transit: 12:03 AM
Moonset: 8:01 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:49 PM - 4:19 PM

Minor Periods

4:45 PM - 6:15 PM
7:31 AM - 9:01 AM

Action Rating: 5 out of 5

Sunday, January 4, 2026

Weather Forecast

Sunny
40.1°F
26.3°F
31.4°F
69%
0 in
0%
0%
14.1 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 15.91 μg/m3
PM10: 16.27 μg/m3
Carbon Monoxide: 311.53 μg/m3
Nitrogen Dioxide: 26.08 μg/m3
Sulphur Dioxide: 11.21 μg/m3
Ozone: 40.56 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:15 AM
Sunset: 5:01 PM
Daylight: 9 hrs 31 mins
Moonrise: 6:33 PM
Moon Transit: 1:06 AM
Moonset: 8:47 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
2:50 PM - 5:20 PM

Minor Periods

6:03 PM - 7:33 PM
8:17 AM - 9:47 AM

Action Rating: 4 out of 5

Monday, January 5, 2026

Weather Forecast

Overcast
37.5°F
22.8°F
27.5°F
67%
0 in
0%
0%
9.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.8 μg/m3
PM10: 6.83 μg/m3
Carbon Monoxide: 213.87 μg/m3
Nitrogen Dioxide: 12.17 μg/m3
Sulphur Dioxide: 10.33 μg/m3
Ozone: 56.92 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:15 AM
Sunset: 5:01 PM
Daylight: 9 hrs 31 mins
Moonrise: 7:48 PM
Moon Transit: 2:04 AM
Moonset: 9:23 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
3:44 PM - 6:14 PM

Minor Periods

7:18 PM - 8:48 PM
8:53 AM - 10:23 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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