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

79°F
Clear
Conditions: Clear
Humidity: 74%
Feels Like: 84.3°F
Wind: NW 4.9 mph
Wind Gusts: 10.3 mph
Pressure: 30.06 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Wed
H: 101°F
L: 79°F
Patchy rain nearby
Thu
H: 95°F
L: 72°F
Overcast
Fri
H: 92°F
L: 71°F
Moderate rain
Sat
H: 92°F
L: 68°F
Patchy rain nearby
Sun
H: 87°F
L: 71°F

Air Quality

PM2.5: 37.19 μg/m3
PM10: 39.96 μg/m3
Carbon Monoxide: 440.3 μg/m3
Nitrogen Dioxide: 17.39 μg/m3
Sulphur Dioxide: 19.61 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:10 PM
Sunset: 8:39 PM
Daylight: 14 hrs 56 mins
Moonrise: 5:25 AM
Moon Transit: 1:29 PM
Moonset: 9:28 PM
Moon Phase: New
Moon Illumination: 1.6%

Best Times for Fishing or Hunting

Major Periods

2:15 AM - 4:45 AM
12:59 AM - 3:29 PM

Minor Periods

8:58 PM - 10:28 PM
4:55 AM - 6:25 AM

Action Rating: 4 out of 5

Heat Advisory issued June 24 at 8:43PM EDT until June 25 at 9:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Tue June 24, 2025, 8:43 PM
Expires: Wed June 25, 2025, 4:45 AM

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, central, northern, and northwest Virginia, and panhandle West Virginia. * WHEN...From 11 AM to 9 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Extreme Heat Warning issued June 24 at 5:23PM EDT until June 24 at 9:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Tue June 24, 2025, 5:23 PM
Expires: Wed June 25, 2025, 1:30 AM

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111. For the Heat Advisory, heat index values up to 108 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...For the Extreme Heat Warning, until 9 PM EDT this evening. For the Heat Advisory, from 11 AM to 9 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Heat Advisory issued June 24 at 5:23PM EDT until June 25 at 9:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Tue June 24, 2025, 5:23 PM
Expires: Wed June 25, 2025, 1:30 AM

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111. For the Heat Advisory, heat index values up to 108 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...For the Extreme Heat Warning, until 9 PM EDT this evening. For the Heat Advisory, from 11 AM to 9 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


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

Effective: Wed June 25, 2025, 2:24 AM
Expires: Wed June 25, 2025, 2:34 AM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.


Heat Advisory issued June 24 at 8:43PM EDT until June 25 at 9:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Tue June 24, 2025, 8:43 PM
Expires: Wed June 25, 2025, 4:45 AM

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, central, northern, and northwest Virginia, and panhandle West Virginia. * WHEN...From 11 AM to 9 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Wednesday, June 25, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 89.3°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 2.6

Air Quality

AQI: 2 - Moderate
PM2.5: 35.53 μg/m3
PM10: 39.37 μg/m3
Carbon Monoxide: 393.46 μg/m3
Nitrogen Dioxide: 16.91 μg/m3
Sulphur Dioxide: 15.38 μg/m3
Ozone: 114.28 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:10 PM
Sunset: 8:39 PM
Daylight: 14 hrs 56 mins
Moonrise: 5:25 AM
Moon Transit: 1:29 PM
Moonset: 9:28 PM
Moon Phase: New
Moon Illumination: 1.6%

Best Times for Fishing or Hunting

Major Periods

2:15 AM - 4:45 AM
12:59 AM - 3:29 PM

Minor Periods

8:58 PM - 10:28 PM
4:55 AM - 6:25 AM

Action Rating: 4 out of 5

Thursday, June 26, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 84.7°F
Average Humidity: 75%
Chance of Rain: 77%
Wind: 11.2 mph
UV Index: 2.5

Air Quality

AQI: 2 - Moderate
PM2.5: 40.17 μg/m3
PM10: 42.45 μg/m3
Carbon Monoxide: 411.81 μg/m3
Nitrogen Dioxide: 21.29 μg/m3
Sulphur Dioxide: 12.27 μg/m3
Ozone: 111.48 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:11 PM
Sunset: 8:39 PM
Daylight: 14 hrs 55 mins
Moonrise: 6:37 AM
Moon Transit: 2:30 PM
Moonset: 10:16 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
2:00 PM - 4:30 PM

Minor Periods

9:46 PM - 11:16 PM
6:07 AM - 7:37 AM

Action Rating: 5 out of 5

Friday, June 27, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 79.3°F
Average Humidity: 81%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 31.66 μg/m3
PM10: 33.18 μg/m3
Carbon Monoxide: 427.57 μg/m3
Nitrogen Dioxide: 20.34 μg/m3
Sulphur Dioxide: 8.26 μg/m3
Ozone: 99.68 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:11 PM
Sunset: 8:39 PM
Daylight: 14 hrs 55 mins
Moonrise: 7:50 AM
Moon Transit: 3:27 PM
Moonset: 10:53 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
2:57 PM - 5:27 PM

Minor Periods

10:23 PM - 11:53 PM
7:20 AM - 8:50 AM

Action Rating: 3 out of 5

Saturday, June 28, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 76.4°F
Average Humidity: 85%
Chance of Rain: 89%
Wind: 9.2 mph
UV Index: 2.4

Air Quality

AQI: 2 - Moderate
PM2.5: 31.86 μg/m3
PM10: 33.12 μg/m3
Carbon Monoxide: 473.46 μg/m3
Nitrogen Dioxide: 28.96 μg/m3
Sulphur Dioxide: 8.87 μg/m3
Ozone: 73.62 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:11 PM
Sunset: 8:39 PM
Daylight: 14 hrs 55 mins
Moonrise: 9:02 AM
Moon Transit: 4:18 PM
Moonset: 11:22 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
3:48 PM - 6:18 PM

Minor Periods

12:00 AM - 12:00 AM
8:32 AM - 10:02 AM

Action Rating: 2 out of 5

Sunday, June 29, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 76.5°F
Average Humidity: 85%
Chance of Rain: 86%
Wind: 6.5 mph
UV Index: 0.2

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: 5:45 AM
Sun Transit: 1:11 PM
Sunset: 8:39 PM
Daylight: 14 hrs 54 mins
Moonrise: 10:11 AM
Moon Transit: 5:04 PM
Moonset: 12:22 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

5:59 AM - 8:29 AM
4:34 PM - 7:04 PM

Minor Periods

9:41 AM - 11:11 AM
12:00 AM - 12:00 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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