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

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Patuxent River

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

Elevation Above Sea Level: 358 feet / 109 meters

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

64.9°F
Overcast
Conditions: Overcast
Humidity: 100%
Feels Like: 64.9°F
Wind: SE 6.5 mph
Wind Gusts: 10.3 mph
Pressure: 30.21 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Cloudy
Mon
H: 82°F
L: 64°F
Heavy rain
Tue
H: 89°F
L: 67°F
Heavy rain
Wed
H: 83°F
L: 69°F
Moderate rain
Thu
H: 79°F
L: 67°F
Moderate rain
Fri
H: 77°F
L: 68°F

Air Quality

PM2.5: 10.73 μg/m3
PM10: 13.51 μg/m3
Carbon Monoxide: 321.9 μg/m3
Nitrogen Dioxide: 22.02 μg/m3
Sulphur Dioxide: 8.33 μg/m3
Ozone: 46 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:00 PM
Sunset: 7:04 PM
Daylight: 12 hrs 8 mins
Moonrise: 7:40 AM
Moon Transit: 1:34 PM
Moonset: 7:20 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

2:31 AM - 5:01 AM
1:04 PM - 3:34 PM

Minor Periods

6:50 PM - 8:20 PM
7:10 AM - 8:40 AM

Action Rating: 5 out of 5

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

Effective: Sun September 21, 2025, 8:21 PM
Expires: Sun September 21, 2025, 8:31 PM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.


Coastal Flood Advisory issued September 21 at 8:20PM EDT until September 21 at 10:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Sun September 21, 2025, 8:20 PM
Expires: Sun September 21, 2025, 10:00 PM

* WHAT...Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in the City of Alexandria and Arlington County. * WHEN...Until 10 PM EDT this evening, especially around the time of high tide. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Tides one to one and a half feet above normal. The next high tide at Alexandria is at 9:07 PM and 9:25 AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued September 21 at 8:20PM EDT until September 21 at 10:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Sun September 21, 2025, 8:20 PM
Expires: Sun September 21, 2025, 10:00 PM

* WHAT...Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in the City of Alexandria and Arlington County. * WHEN...Until 10 PM EDT this evening, especially around the time of high tide. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Tides one to one and a half feet above normal. The next high tide at Alexandria is at 9:07 PM and 9:25 AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued September 21 at 8:20PM EDT until September 21 at 10:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Sun September 21, 2025, 8:20 PM
Expires: Sun September 21, 2025, 10:00 PM

* WHAT...Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in the City of Alexandria and Arlington County. * WHEN...Until 10 PM EDT this evening, especially around the time of high tide. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Tides one to one and a half feet above normal. The next high tide at Alexandria is at 9:07 PM and 9:25 AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued September 21 at 8:20PM EDT until September 22 at 9:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Sun September 21, 2025, 8:20 PM
Expires: Mon September 22, 2025, 4:30 AM

* WHAT...Up to one and a half feet of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Anne Arundel County. * WHEN...Until 9 PM EDT Monday, especially around the time of high tide. * IMPACTS...At 2.8 feet, flooding of some of the parking area near Dock Street in Annapolis may occur, with water surrounding the Alex Haley Memorial. * ADDITIONAL DETAILS...Tides one to one and a half feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 6:10 AM and 6:43 PM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Monday, September 22, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 70°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 1.1

Air Quality

AQI: 2 - Moderate
PM2.5: 18.63 μg/m3
PM10: 20.93 μg/m3
Carbon Monoxide: 403.52 μg/m3
Nitrogen Dioxide: 25.94 μg/m3
Sulphur Dioxide: 7.22 μg/m3
Ozone: 64.04 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:00 PM
Sunset: 7:04 PM
Daylight: 12 hrs 8 mins
Moonrise: 7:40 AM
Moon Transit: 1:34 PM
Moonset: 7:20 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

2:31 AM - 5:01 AM
1:04 PM - 3:34 PM

Minor Periods

6:50 PM - 8:20 PM
7:10 AM - 8:40 AM

Action Rating: 5 out of 5

Tuesday, September 23, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 75.9°F
Average Humidity: 75%
Chance of Rain: 83%
Wind: 11.4 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 23.44 μg/m3
PM10: 24.01 μg/m3
Carbon Monoxide: 491.8 μg/m3
Nitrogen Dioxide: 24.38 μg/m3
Sulphur Dioxide: 7.97 μg/m3
Ozone: 85.28 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:00 PM
Sunset: 7:03 PM
Daylight: 12 hrs 6 mins
Moonrise: 8:41 AM
Moon Transit: 2:15 PM
Moonset: 7:41 PM
Moon Phase: New
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
1:45 PM - 4:15 PM

Minor Periods

7:11 PM - 8:41 PM
8:11 AM - 9:41 AM

Action Rating: 4 out of 5

Wednesday, September 24, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 72.8°F
Average Humidity: 83%
Chance of Rain: 89%
Wind: 5.4 mph
UV Index: 5

Air Quality

AQI: 2 - Moderate
PM2.5: 16.15 μg/m3
PM10: 16.32 μg/m3
Carbon Monoxide: 610.72 μg/m3
Nitrogen Dioxide: 17.82 μg/m3
Sulphur Dioxide: 7.36 μg/m3
Ozone: 85.12 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:00 PM
Sunset: 7:01 PM
Daylight: 12 hrs 3 mins
Moonrise: 9:42 AM
Moon Transit: 2:57 PM
Moonset: 8:05 PM
Moon Phase: New
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

3:53 AM - 6:23 AM
2:27 PM - 4:57 PM

Minor Periods

7:35 PM - 9:05 PM
9:12 AM - 10:42 AM

Action Rating: 3 out of 5

Thursday, September 25, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 70.2°F
Average Humidity: 90%
Chance of Rain: 89%
Wind: 9.2 mph
UV Index: 5

Air Quality

AQI: 1 - Good
PM2.5: 7.93 μg/m3
PM10: 7.96 μg/m3
Carbon Monoxide: 573.07 μg/m3
Nitrogen Dioxide: 16.82 μg/m3
Sulphur Dioxide: 2.99 μg/m3
Ozone: 63.23 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:00 PM
Sunset: 7:00 PM
Daylight: 12 hrs 1 mins
Moonrise: 10:45 AM
Moon Transit: 3:41 PM
Moonset: 8:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

4:36 AM - 7:06 AM
3:11 PM - 5:41 PM

Minor Periods

8:03 PM - 9:33 PM
10:15 AM - 11:45 AM

Action Rating: 3 out of 5

Friday, September 26, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 70.3°F
Average Humidity: 93%
Chance of Rain: 88%
Wind: 6 mph
UV Index: 5

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:00 PM
Sunset: 6:58 PM
Daylight: 11 hrs 58 mins
Moonrise: 11:46 AM
Moon Transit: 4:28 PM
Moonset: 9:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
3:58 PM - 6:28 PM

Minor Periods

8:35 PM - 10:05 PM
11:16 AM - 12:46 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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