Water Temperature of the Potomac River in Point of Rocks, MD
Current Water Temperature
Measurement Time: Thursday, July 2, 2026, 9:55 PM EDT
Temperature Locations
View Nearby Locations View All Maryland Locations View Locations Near Me
Local Points of Interest
Paton Island; Heaters island; Chesapeake and Ohio Canal National Historic ParkStation 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

Five Day Weather Forecast

Fri
H: 104°F
L: 71°F

Sat
H: 99°F
L: 68°F

Sun
H: 89°F
L: 66°F

Mon
H: 86°F
L: 65°F

Tue
H: 90°F
L: 66°F
Air Quality
Nitrogen Dioxide: 6.5 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 57 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:41 PM
Daylight: 14 hrs 52 mins
Moon Transit: 3:49 AM
Moonset: 9:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%
Best Times for Fishing or Hunting
Major Periods
3:19 AM - 5:49 AM5:23 PM - 7:53 PM
Minor Periods
12:00 AM - 12:00 AM8:36 AM - 10:06 AM
Action Rating: 3 out of 5
Heat Advisory issued July 2 at 1:32PM EDT until July 4 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Thu July 2, 2026, 1:32 PM
Expires: Thu July 2, 2026, 11:00 PM
* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 109. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Heat Advisory, heat index values up to 105 expected. * WHERE...Portions of north central Maryland, northwest Virginia, and eastern and panhandle West Virginia. * WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. For the Heat Advisory, from 10 AM to 8 PM EDT Saturday. * 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Extreme Heat Warning issued July 2 at 1:32PM EDT until July 3 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Thu July 2, 2026, 1:32 PM
Expires: Thu July 2, 2026, 11:00 PM
* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 109. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Heat Advisory, heat index values up to 105 expected. * WHERE...Portions of north central Maryland, northwest Virginia, and eastern and panhandle West Virginia. * WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. For the Heat Advisory, from 10 AM to 8 PM EDT Saturday. * 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Extreme Heat Warning issued July 2 at 1:32PM EDT until July 2 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Thu July 2, 2026, 1:32 PM
Expires: Thu July 2, 2026, 11:00 PM
* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 109. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the Heat Advisory, heat index values up to 105 expected. * WHERE...Portions of north central Maryland, northwest Virginia, and eastern and panhandle West Virginia. * WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. For the Heat Advisory, from 10 AM to 8 PM EDT Saturday. * 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.24 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 97.29 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:41 PM
Daylight: 14 hrs 52 mins
Moon Transit: 3:49 AM
Moonset: 9:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%
Best Times for Fishing or Hunting
Major Periods
3:19 AM - 5:49 AM5:23 PM - 7:53 PM
Minor Periods
12:00 AM - 12:00 AM8:36 AM - 10:06 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.85 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 94.63 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:40 PM
Daylight: 14 hrs 52 mins
Moon Transit: 4:32 AM
Moonset: 10:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%
Best Times for Fishing or Hunting
Major Periods
4:02 AM - 6:32 AM6:06 PM - 8:36 PM
Minor Periods
9:40 AM - 11:10 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.59 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 100.88 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:40 PM
Daylight: 14 hrs 51 mins
Moon Transit: 5:15 AM
Moonset: 11:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%
Best Times for Fishing or Hunting
Major Periods
4:45 AM - 7:15 AM12:00 AM - 12:00 AM
Minor Periods
10:43 AM - 12:13 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.27 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 75 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:40 PM
Daylight: 14 hrs 50 mins
Moon Transit: 5:58 AM
Moonset: 12:18 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%
Best Times for Fishing or Hunting
Major Periods
5:28 AM - 7:58 AM12:45 AM - 3:15 PM
Minor Periods
11:48 AM - 1:18 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.44 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 64.89 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:40 PM
Daylight: 14 hrs 49 mins
Moon Transit: 12:00 AM
Moonset: 1:24 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM8:18 PM - 10:48 PM
Minor Periods
12:54 AM - 2:24 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
