Water Temperature of the Potomac River in Point of Rocks, MD
Current Water Temperature
Measurement Time: Wednesday, May 20, 2026, 12:55 PM EDT
Temperature Locations
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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

Wed
H: 89°F
L: 64°F

Thu
H: 55°F
L: 50°F

Fri
H: 52°F
L: 50°F

Sat
H: 54°F
L: 51°F

Sun
H: 53°F
L: 52°F
Air Quality
Nitrogen Dioxide: 6.15 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 66 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 29 mins
Moon Transit: 5:13 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%
Best Times for Fishing or Hunting
Major Periods
5:56 AM - 8:26 AM4:43 PM - 7:13 PM
Minor Periods
8:55 AM - 10:25 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Severe Thunderstorm Watch issued May 20 at 12:39PM EDT until May 20 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Wed May 20, 2026, 12:39 PM
Expires: Wed May 20, 2026, 8:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 234 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THE DISTRICT OF COLUMBIA IN MARYLAND THIS WATCH INCLUDES 13 COUNTIES IN CENTRAL MARYLAND ANNE ARUNDEL HOWARD MONTGOMERY PRINCE GEORGES IN NORTH CENTRAL MARYLAND CARROLL FREDERICK WASHINGTON IN NORTHEAST MARYLAND CECIL IN NORTHERN MARYLAND BALTIMORE BALTIMORE CITY HARFORD IN WESTERN MARYLAND ALLEGANY GARRETT IN VIRGINIA THIS WATCH INCLUDES 22 COUNTIES IN CENTRAL VIRGINIA GREENE IN NORTHERN VIRGINIA ARLINGTON CITY OF ALEXANDRIA CITY OF FAIRFAX CITY OF FALLS CHURCH CITY OF MANASSAS CITY OF MANASSAS PARK CULPEPER FAIRFAX FAUQUIER LOUDOUN PRINCE WILLIAM IN NORTHWEST VIRGINIA CITY OF WINCHESTER CLARKE FREDERICK MADISON PAGE RAPPAHANNOCK SHENANDOAH WARREN IN WESTERN VIRGINIA CITY OF HARRISONBURG ROCKINGHAM IN WEST VIRGINIA THIS WATCH INCLUDES 8 COUNTIES IN EASTERN WEST VIRGINIA GRANT HAMPSHIRE HARDY MINERAL PENDLETON IN PANHANDLE WEST VIRGINIA BERKELEY JEFFERSON MORGAN THIS INCLUDES THE CITIES OF ABERDEEN, ABINGDON, ADAMS MORGAN, ADEN, AIRLIE, ALBIN, ALEXANDRIA, ALONZAVILLE, ANDORA, ANNANDALE, ANNAPOLIS, ANTIOCH, APPLETON, ARCO, ARLINGTON, ARNOLD, BAKERTON, BALLENGER CREEK, BALLSTON, BALTIMORE, BARCROFT, BARKSDALE, BAY VIEW, BEAN SETTLEMENT, BENTONVILLE, BERKELEY SPGS, BERRYVILLE, BERRYVILLE, BETHEL, BETHESDA, BLAKE, BLOOMERY, BOHEMIAS MILLS, BOWIE, BOYDS, BRADY, BRAKE, BRANDYWINE, BRANTWOOD, BUCKEYSTOWN, BUCKTON, BURKE, BYNUM, CABINS, CARDOVA, CATALPA, CATONSVILLE, CEDAR GROVE, CEDARVILLE, CHANTILLY, CHARLES TOWN, CHERRYDALE, CHESTER GAP, CLARKSVILLE, CLARY, CLINTON, COLLEGE PARK, COLUMBIA, COMPTON, COUNTRYSIDE, CULPEPER, CUMBERLAND, DALE CITY, DULLES INTERNATIONAL AIRPORT, DUNDALK, EDGEWOOD, ELDERSBURG, ELLERSLIE, ESSEX, FAIRFAX, FAIRFAX STATION, FAIRVIEW, FALLS CHURCH, FELLS POINT, FISHER, FIVE FORKS, FORDSVILLE, FORT ASHBY, FOUR CORNERS, FRANKLIN, FREDERICK, FRENCHBURG, FRONT ROYAL, FROSTBURG, GAINESBORO, GAITHERSBURG, GAMBER, GERMANTOWN, GLEEDSVILLE, GLEN BURNIE, GLEN ECHO, GLENMONT, GRANTSVILLE, GREENBELT, HAGERSTOWN, HALFWAY, HAMBURG, HANCOCK, HARFORD FURNACE, HARRISONBURG, HAWKINSTOWN, HEADSVILLE, HICKORY, HISTORIC ELLICOTT CITY, HOWELLSVILLE, INDEPENDENT HILL, KEYSER, KIMBALL, KLINE GAP, LAKE RIDGE, LANDES, LANGLEY, LEESBURG, LINVILLE, LUCKETTS, LURAY, MADISON MILLS, MAGNOLIA, MAGNOLIA, MANASSAS, MANASSAS PARK, MARTINSBURG, MASONVILLE, MCCOOLE, MCLEAN, MCNEILL, MIDDLEWAY, MILLVILLE, MONTCLAIR, MONTPELIER, MOOREFIELD, MOUNT CLIFTON, MOUNT JACKSON, MOUNTAIN LAKE PARK, NEW CREEK, OAK FLAT, OAK GROVE, OAKLAND, PARK HEIGHTS, PARK MILLS, PARKVILLE, PAW PAW, PETERSBURG, POINTS, PURGITSVILLE, RANDALLSTOWN, RANSON, RAPIDAN, RAWLINGS, REAGAN NATIONAL AIRPORT, RESTON, REVA, RIDGEVILLE, RIDGEWAY, RILEYVILLE, RIVERCREST, RIVERTON, ROMNEY, ROSSLYN, RUDDLE, RUSSELLDALE, SEVERN, SEVERNA PARK, SEYMOURVILLE, SHADY GROVE, SHADY GROVE, SHENANDOAH JUNCTION, SILVER SPRING, SIMPSONVILLE, SKYLAND, SMITH CROSSROADS, SOUTH GATE, SPRINGFIELD, STERLING PARK, STEVENSBURG, STRASBURG, STRINGTOWN, SUGAR GROVE, SUITLAND-SILVER HILL, TANTALLON, THREE CHURCHES, TOWSON, TURNBULL, TWYMANS MILL, WAPOCOMO, WARRENTON, WASHINGTON, WELTON, WESTMINSTER, WINCHESTER, WINSTON, WOODBRIDGE, WOODLAWN, WOODSTOCK, AND WOODSTOCK.
This is only a test for monitoring of vital dissemination systems.
Effective: Wed May 20, 2026, 2:30 PM
Expires: Wed May 20, 2026, 2:40 PM
Monitoring message only. Please disregard.
Monitoring message only. Please disregard.
Severe Thunderstorm Watch issued May 20 at 12:40PM EDT until May 20 at 8:00PM EDT by NWS State College PA
Effective: Wed May 20, 2026, 12:40 PM
Expires: Wed May 20, 2026, 8:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 234 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 18 COUNTIES IN CENTRAL PENNSYLVANIA ADAMS BEDFORD COLUMBIA CUMBERLAND DAUPHIN FRANKLIN FULTON HUNTINGDON JUNIATA LANCASTER LEBANON MIFFLIN NORTHUMBERLAND PERRY SCHUYLKILL SNYDER SOMERSET YORK THIS INCLUDES THE CITIES OF BEDFORD, BERWICK, BLOOMSBURG, CARLISLE, CHAMBERSBURG, GETTYSBURG, HARRISBURG, HERSHEY, HUNTINGDON, LANCASTER, LEBANON, LEWISTOWN, MCCONNELLSBURG, MIFFLINTOWN, MOUNT UNION, NEWPORT, POTTSVILLE, SELINSGROVE, SHAMOKIN, SOMERSET, SUNBURY, WAYNESBORO, AND YORK.
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.35 μg/m3
Sulphur Dioxide: 1.76 μg/m3
Ozone: 68.32 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 29 mins
Moon Transit: 5:13 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%
Best Times for Fishing or Hunting
Major Periods
5:56 AM - 8:26 AM4:43 PM - 7:13 PM
Minor Periods
8:55 AM - 10:25 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.34 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 62.08 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 31 mins
Moon Transit: 6:09 PM
Moonset: 12:50 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
6:55 AM - 9:25 AM5:39 PM - 8:09 PM
Minor Periods
10:12 AM - 11:42 AM12:20 AM - 1:50 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.51 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 53.44 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 32 mins
Moon Transit: 7:00 PM
Moonset: 1:25 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%
Best Times for Fishing or Hunting
Major Periods
7:48 AM - 10:18 AM6:30 PM - 9:00 PM
Minor Periods
11:25 AM - 12:55 AM12:55 AM - 2:25 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.07 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 49.08 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:24 PM
Daylight: 14 hrs 34 mins
Moon Transit: 7:46 PM
Moonset: 1:53 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%
Best Times for Fishing or Hunting
Major Periods
8:36 AM - 11:06 AM7:16 PM - 9:46 PM
Minor Periods
12:34 AM - 2:04 PM1:23 AM - 2:53 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:25 PM
Daylight: 14 hrs 35 mins
Moon Transit: 8:29 PM
Moonset: 2:18 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%
Best Times for Fishing or Hunting
Major Periods
9:21 AM - 11:51 AM7:59 PM - 10:29 PM
Minor Periods
1:40 PM - 3:10 PM1:48 AM - 3:18 AM
Action Rating: 3 out of 5
