Water Temperature of Upper Machedoc Creek in Dahlgren, VA
Current Water Temperature
65.8°F
Measurement Time: Wednesday, May 6, 2026, 8:30 AM EDT
Today's Tides
Low: May 6, 12:13 AM, 0.3 ft
High: May 6, 6:24 AM, 1.8 ft
Low: May 6, 1:07 PM, 0.4 ft
High: May 6, 6:54 PM, 1.4 ft
Temperature Locations
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Local Points of Interest
Potomac River; Naval Surface Warfare CenterUpper Machedoc Creek
Station Name: Dahlgren
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 10 feet
Sensor Depth: 2 feet
Nearest Address:
6388–6478 Sampson Rd
Dahlgren, VA 22448
King George County
GPS Coordinates: 38.320000, -77.036697
Nearby Water Temperatures
Patuxent River, Solomons, MD (31.8 mi)Chesapeake Bay, Cambridge, MD (37.4 mi)
Washington Channel, Washington, DC (38.2 mi)
Coan River, Lewisetta, VA (38.3 mi)
Difficult Run, Oakton, VA (42.2 mi)
Potomac River, Scotland, MD (43 mi)
Northeast Branch Anacostia River, Riverdale Park, MD (44.6 mi)
Dead Run, McLean, VA (44.8 mi)
Sligo Creek, Takoma Park, MD (46.1 mi)
Difficult Run, McLean, VA (46.7 mi)
Paint Branch, Calverton, MD (49.4 mi)
Fishing Bay, Crocheron, MD (54.6 mi)
Chesapeake Bay, Annapolis, MD (54.6 mi)
Severn River, Annapolis, MD (54.8 mi)
Choptank River, Cambridge, MD (55.6 mi)
Weather for Dahlgren, Virginia
Current Weather
65.8°F

Partly cloudy
65.8°F
67.2°F
64%
SSW 15.2 mph
22.5 mph
67.1°F
53.1°F
0 in
75%
9 mi
1010 mbar
0.2
Five Day Weather Forecast

Wed
H: 83°F
L: 62°F

Thu
H: 57°F
L: 50°F

Fri
H: 67°F
L: 43°F

Sat
H: 73°F
L: 53°F

Sun
H: 82°F
L: 52°F
Air Quality
AQI:
2 - Moderate
PM2.5:
4.65 μg/m3
PM10:
5.65 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 112 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 112 μg/m3
Astronomical
Sunrise: 6:06 AM
Sun Transit: 1:04 PM
Sunset: 8:04 PM
Daylight: 13 hrs 59 mins
Sun Transit: 1:04 PM
Sunset: 8:04 PM
Daylight: 13 hrs 59 mins
Moonrise: 12:12 AM
Moon Transit: 4:41 AM
Moonset: 9:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%
Moon Transit: 4:41 AM
Moonset: 9:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%
Best Times for Fishing or Hunting
Major Periods
4:11 AM - 6:41 AM6:24 PM - 8:54 PM
Minor Periods
8:43 AM - 10:13 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Wednesday, May 6, 2026
Weather Forecast
Patchy rain nearby
82.9°F
61.9°F
70.1°F
61%
0.03 in
81%
0%
16.1 mph
2.8
Air Quality
AQI:
1 - Good
PM2.5:
5.04 μg/m3
PM10:
5.63 μg/m3
Carbon Monoxide: 146.53 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 111.92 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 111.92 μg/m3
Astronomical
Sunrise: 6:06 AM
Sun Transit: 1:04 PM
Sunset: 8:04 PM
Daylight: 13 hrs 59 mins
Sun Transit: 1:04 PM
Sunset: 8:04 PM
Daylight: 13 hrs 59 mins
Moonrise: 12:12 AM
Moon Transit: 4:41 AM
Moonset: 9:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%
Moon Transit: 4:41 AM
Moonset: 9:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%
Best Times for Fishing or Hunting
Major Periods
4:11 AM - 6:41 AM6:24 PM - 8:54 PM
Minor Periods
8:43 AM - 10:13 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Thursday, May 7, 2026
Weather Forecast
Patchy rain nearby
57.1°F
50.2°F
54.3°F
80%
0.08 in
89%
0%
11.2 mph
1.8
Air Quality
AQI:
1 - Good
PM2.5:
9.04 μg/m3
PM10:
9.77 μg/m3
Carbon Monoxide: 174.01 μg/m3
Nitrogen Dioxide: 8.07 μg/m3
Sulphur Dioxide: 4.86 μg/m3
Ozone: 74.44 μg/m3
Nitrogen Dioxide: 8.07 μg/m3
Sulphur Dioxide: 4.86 μg/m3
Ozone: 74.44 μg/m3
Astronomical
Sunrise: 6:05 AM
Sun Transit: 1:04 PM
Sunset: 8:05 PM
Daylight: 14 hrs 1 mins
Sun Transit: 1:04 PM
Sunset: 8:05 PM
Daylight: 14 hrs 1 mins
Moonrise: 12:55 AM
Moon Transit: 5:32 AM
Moonset: 10:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%
Moon Transit: 5:32 AM
Moonset: 10:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%
Best Times for Fishing or Hunting
Major Periods
5:02 AM - 7:32 AM7:13 PM - 9:43 PM
Minor Periods
9:43 AM - 11:13 AM12:25 AM - 1:55 AM
Action Rating: 2 out of 5
Friday, May 8, 2026
Weather Forecast
Sunny
66.5°F
42.7°F
55.2°F
61%
0 in
0%
0%
13.4 mph
0.8
Air Quality
AQI:
1 - Good
PM2.5:
7.25 μg/m3
PM10:
7.53 μg/m3
Carbon Monoxide: 160.45 μg/m3
Nitrogen Dioxide: 6.24 μg/m3
Sulphur Dioxide: 5.3 μg/m3
Ozone: 80.36 μg/m3
Nitrogen Dioxide: 6.24 μg/m3
Sulphur Dioxide: 5.3 μg/m3
Ozone: 80.36 μg/m3
Astronomical
Sunrise: 6:04 AM
Sun Transit: 1:04 PM
Sunset: 8:06 PM
Daylight: 14 hrs 3 mins
Sun Transit: 1:04 PM
Sunset: 8:06 PM
Daylight: 14 hrs 3 mins
Moonrise: 1:32 AM
Moon Transit: 6:20 AM
Moonset: 11:15 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%
Moon Transit: 6:20 AM
Moonset: 11:15 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%
Best Times for Fishing or Hunting
Major Periods
5:50 AM - 8:20 AM8:01 PM - 10:31 PM
Minor Periods
10:45 AM - 12:15 AM1:02 AM - 2:32 AM
Action Rating: 4 out of 5
Saturday, May 9, 2026
Weather Forecast
Partly Cloudy
73.4°F
53°F
61.7°F
63%
0 in
0%
0%
16.6 mph
5
Air Quality
AQI:
1 - Good
PM2.5:
7.71 μg/m3
PM10:
7.98 μg/m3
Carbon Monoxide: 163.46 μg/m3
Nitrogen Dioxide: 4.03 μg/m3
Sulphur Dioxide: 3.74 μg/m3
Ozone: 93.48 μg/m3
Nitrogen Dioxide: 4.03 μg/m3
Sulphur Dioxide: 3.74 μg/m3
Ozone: 93.48 μg/m3
Astronomical
Sunrise: 6:03 AM
Sun Transit: 1:04 PM
Sunset: 8:07 PM
Daylight: 14 hrs 5 mins
Sun Transit: 1:04 PM
Sunset: 8:07 PM
Daylight: 14 hrs 5 mins
Moonrise: 2:03 AM
Moon Transit: 7:07 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%
Moon Transit: 7:07 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%
Best Times for Fishing or Hunting
Major Periods
6:37 AM - 9:07 AM8:47 PM - 11:17 PM
Minor Periods
11:49 AM - 1:19 PM1:33 AM - 3:03 AM
Action Rating: 2 out of 5
Sunday, May 10, 2026
Weather Forecast
Patchy rain nearby
81.5°F
52.3°F
62.6°F
70%
0.05 in
60%
0%
13 mph
4
Air Quality
AQI:
2 - Moderate
PM2.5:
15.54 μg/m3
PM10:
16.03 μg/m3
Carbon Monoxide: 235.21 μg/m3
Nitrogen Dioxide: 9.23 μg/m3
Sulphur Dioxide: 2.96 μg/m3
Ozone: 84.69 μg/m3
Nitrogen Dioxide: 9.23 μg/m3
Sulphur Dioxide: 2.96 μg/m3
Ozone: 84.69 μg/m3
Astronomical
Sunrise: 6:02 AM
Sun Transit: 1:04 PM
Sunset: 8:08 PM
Daylight: 14 hrs 7 mins
Sun Transit: 1:04 PM
Sunset: 8:08 PM
Daylight: 14 hrs 7 mins
Moonrise: 2:31 AM
Moon Transit: 7:52 AM
Moonset: 1:23 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%
Moon Transit: 7:52 AM
Moonset: 1:23 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%
Best Times for Fishing or Hunting
Major Periods
7:22 AM - 9:52 AM12:00 AM - 12:00 AM
Minor Periods
12:53 AM - 2:23 PM2:01 AM - 3:31 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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