Water Temperature of the Patuxent River in Brighton, MD

Current Water Temperature

70.3°F

Measurement Time: Tuesday, October 10, 2017, 4:45 AM EDT

Temperature Locations

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Local Points of Interest

Triadelphia Reservoir; Brighton Dam; Brighton Dam Recreation Park; Clarksville, MD

Patuxent River

Station Name: PATUXENT RIVER BELOW BRIGHTON DAM NEAR BRIGHTON,MD
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 358 feet

Nearest Address:
14199 Brighton Dam Rd
Brighton, MD 21029
Montgomery County

GPS Coordinates: 39.19219444, -77.00438889

Nearby Water Temperatures

Paint Branch, Calverton, MD (11.2 mi)
Sligo Creek, Takoma Park, MD (14.2 mi)
Northeast Branch Anacostia River, Riverdale Park, MD (16.6 mi)
Scotts Level Branch, Milford Mill, MD (17.5 mi)
Dead Run, McLean, VA (18.5 mi)
Difficult Run, McLean, VA (19.8 mi)
Washington Channel, Washington, DC (22.1 mi)
Northwest Harbor, Baltimore, MD (23.3 mi)
Herring Run, Baltimore, MD (25.6 mi)
Difficult Run, Oakton, VA (27.6 mi)
Carroll Creek, Frederick, MD (27.8 mi)
Carroll Creek, Frederick, MD (28.8 mi)
Potomac River, Point of Rocks, MD (29.4 mi)
Severn River, Annapolis, MD (31.7 mi)
Chesapeake Bay, Annapolis, MD (33.8 mi)

Weather for Brighton, Maryland

Current Weather

25°F
Overcast
Overcast
21.1°F
25.7°F
48%
SSW 3.1 mph
4.5 mph
22.3°F
5.4°F
0 in
100%
9 mi
1011 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 44°F
L: 25°F
Overcast
Sat
H: 36°F
L: 25°F
Partly Cloudy
Sun
H: 44°F
L: 29°F
Light freezing rain
Mon
H: 37°F
L: 27°F
Partly Cloudy
Tue
H: 44°F
L: 33°F

Air Quality

AQI: 2 - Moderate
PM2.5: 22.15 μg/m3
PM10: 23.15 μg/m3
Carbon Monoxide: 296.85 μg/m3
Nitrogen Dioxide: 28.55 μg/m3
Sulphur Dioxide: 11.95 μg/m3
Ozone: 36 μg/m3

Astronomical

Sunrise: 7:27 AM
Sun Transit: 12:12 AM
Sunset: 4:57 PM
Daylight: 9 hrs 29 mins
Moonrise: 3:58 PM
Moon Transit: 12:00 AM
Moonset: 6:59 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:46 AM - 3:16 PM

Minor Periods

3:28 PM - 4:58 PM
6:29 AM - 7:59 AM

Action Rating: 4 out of 5

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

Effective: Fri January 2, 2026, 1:26 AM
Expires: Fri January 2, 2026, 1:36 AM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.
Friday, January 2, 2026

Weather Forecast

Sunny
43.7°F
24.8°F
30.7°F
45%
0 in
0%
0%
7.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 12.81 μg/m3
PM10: 13.39 μg/m3
Carbon Monoxide: 232.41 μg/m3
Nitrogen Dioxide: 18.72 μg/m3
Sulphur Dioxide: 10.03 μg/m3
Ozone: 52.08 μg/m3

Astronomical

Sunrise: 7:27 AM
Sun Transit: 12:12 AM
Sunset: 4:57 PM
Daylight: 9 hrs 29 mins
Moonrise: 3:58 PM
Moon Transit: 12:00 AM
Moonset: 6:59 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:46 AM - 3:16 PM

Minor Periods

3:28 PM - 4:58 PM
6:29 AM - 7:59 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Overcast
36°F
25°F
30.2°F
69%
0 in
0%
0%
7.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 11.7 μg/m3
PM10: 11.87 μg/m3
Carbon Monoxide: 291.77 μg/m3
Nitrogen Dioxide: 18.05 μg/m3
Sulphur Dioxide: 10.21 μg/m3
Ozone: 52.76 μg/m3

Astronomical

Sunrise: 7:27 AM
Sun Transit: 12:12 AM
Sunset: 4:58 PM
Daylight: 9 hrs 30 mins
Moonrise: 5:13 PM
Moon Transit: 12:01 AM
Moonset: 7:58 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:51 PM - 4:21 PM

Minor Periods

4:43 PM - 6:13 PM
7:28 AM - 8:58 AM

Action Rating: 5 out of 5

Sunday, January 4, 2026

Weather Forecast

Partly Cloudy
43.5°F
28.5°F
34.6°F
68%
0 in
0%
0%
13.2 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 30.24 μg/m3
PM10: 30.91 μg/m3
Carbon Monoxide: 564.65 μg/m3
Nitrogen Dioxide: 38.76 μg/m3
Sulphur Dioxide: 15.03 μg/m3
Ozone: 28.16 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:13 AM
Sunset: 4:59 PM
Daylight: 9 hrs 31 mins
Moonrise: 6:31 PM
Moon Transit: 1:04 AM
Moonset: 8:45 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 AM
2:52 PM - 5:22 PM

Minor Periods

6:01 PM - 7:31 PM
8:15 AM - 9:45 AM

Action Rating: 4 out of 5

Monday, January 5, 2026

Weather Forecast

Light freezing rain
37.3°F
27.4°F
31.7°F
63%
0.01 in
75%
0%
8.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 9.89 μg/m3
PM10: 9.99 μg/m3
Carbon Monoxide: 263.04 μg/m3
Nitrogen Dioxide: 22.88 μg/m3
Sulphur Dioxide: 11.74 μg/m3
Ozone: 47.6 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:13 AM
Sunset: 5:00 PM
Daylight: 9 hrs 32 mins
Moonrise: 7:46 PM
Moon Transit: 2:02 AM
Moonset: 9:21 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
3:47 PM - 6:17 PM

Minor Periods

7:16 PM - 8:46 PM
8:51 AM - 10:21 AM

Action Rating: 3 out of 5

Tuesday, January 6, 2026

Weather Forecast

Partly Cloudy
44°F
32.6°F
37.6°F
85%
0 in
0%
0%
7.2 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 20.09 μg/m3
PM10: 20.17 μg/m3
Carbon Monoxide: 317.36 μg/m3
Nitrogen Dioxide: 35.7 μg/m3
Sulphur Dioxide: 11.37 μg/m3
Ozone: 18.77 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:13 AM
Sunset: 5:00 PM
Daylight: 9 hrs 33 mins
Moonrise: 8:57 PM
Moon Transit: 2:54 AM
Moonset: 9:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

2:24 AM - 4:54 AM
4:36 PM - 7:06 PM

Minor Periods

8:27 PM - 9:57 PM
9:21 AM - 10:51 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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