Water Temperature of Upper Machedoc Creek in Dahlgren, VA

Current Water Temperature

37.8°F

Measurement Time: Sunday, January 4, 2026, 12:42 AM EST

Today's Tides

 High: January 4, 3:07 AM, 1.5 ft
Low: January 4, 9:30 AM, -0.5 ft
 High: January 4, 3:35 PM, 1.7 ft
Low: January 4, 10:20 PM, -0.3 ft

Temperature Locations

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Local Points of Interest

Potomac River; Naval Surface Warfare Center

Upper 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

32.5°F
Overcast
Overcast
31.1°F
32.6°F
66%
ENE 2.2 mph
3.6 mph
30.3°F
23.7°F
0 in
100%
9 mi
1017 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 43°F
L: 30°F
Overcast
Mon
H: 44°F
L: 29°F
Overcast
Tue
H: 41°F
L: 39°F
Sunny
Wed
H: 62°F
L: 47°F
Sunny
Thu
H: 50°F
L: 41°F

Air Quality

PM2.5: 25.75 μg/m3
PM10: 26.35 μg/m3
Carbon Monoxide: 255.85 μg/m3
Nitrogen Dioxide: 40.85 μg/m3
Sulphur Dioxide: 10.75 μg/m3
Ozone: 7 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:13 AM
Sunset: 5:01 PM
Daylight: 9 hrs 36 mins
Moonrise: 6:34 PM
Moon Transit: 1:04 AM
Moonset: 8:42 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 AM
2:52 PM - 5:22 PM

Minor Periods

6:04 PM - 7:34 PM
8:12 AM - 9:42 AM

Action Rating: 4 out of 5

Sunday, January 4, 2026

Weather Forecast

Sunny
43°F
30.2°F
35.2°F
60%
0 in
0%
0%
10.3 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 17.72 μg/m3
PM10: 18.11 μg/m3
Carbon Monoxide: 231.85 μg/m3
Nitrogen Dioxide: 27.16 μg/m3
Sulphur Dioxide: 12.29 μg/m3
Ozone: 33.84 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:13 AM
Sunset: 5:01 PM
Daylight: 9 hrs 36 mins
Moonrise: 6:34 PM
Moon Transit: 1:04 AM
Moonset: 8:42 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 AM
2:52 PM - 5:22 PM

Minor Periods

6:04 PM - 7:34 PM
8:12 AM - 9:42 AM

Action Rating: 4 out of 5

Monday, January 5, 2026

Weather Forecast

Overcast
43.5°F
28.9°F
35.8°F
61%
0 in
0%
0%
11.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 10.73 μg/m3
PM10: 10.75 μg/m3
Carbon Monoxide: 190.37 μg/m3
Nitrogen Dioxide: 18.74 μg/m3
Sulphur Dioxide: 9.85 μg/m3
Ozone: 45.28 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:13 AM
Sunset: 5:02 PM
Daylight: 9 hrs 37 mins
Moonrise: 7:48 PM
Moon Transit: 2:02 AM
Moonset: 9:19 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
3:46 PM - 6:16 PM

Minor Periods

7:18 PM - 8:48 PM
8:49 AM - 10:19 AM

Action Rating: 3 out of 5

Tuesday, January 6, 2026

Weather Forecast

Overcast
41.4°F
38.7°F
40.8°F
92%
0 in
0%
0%
6.9 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 15.83 μg/m3
PM10: 16.15 μg/m3
Carbon Monoxide: 221.92 μg/m3
Nitrogen Dioxide: 9.39 μg/m3
Sulphur Dioxide: 6.61 μg/m3
Ozone: 46.56 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:14 AM
Sunset: 5:03 PM
Daylight: 9 hrs 38 mins
Moonrise: 8:58 PM
Moon Transit: 2:54 AM
Moonset: 9:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

2:24 AM - 4:54 AM
4:36 PM - 7:06 PM

Minor Periods

8:28 PM - 9:58 PM
9:19 AM - 10:49 AM

Action Rating: 3 out of 5

Wednesday, January 7, 2026

Weather Forecast

Sunny
61.5°F
47.4°F
53.2°F
79%
0 in
0%
0%
11.6 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 19.58 μg/m3
PM10: 19.87 μg/m3
Carbon Monoxide: 249.4 μg/m3
Nitrogen Dioxide: 8.7 μg/m3
Sulphur Dioxide: 7.2 μg/m3
Ozone: 58.23 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:14 AM
Sunset: 5:04 PM
Daylight: 9 hrs 39 mins
Moonrise: 10:04 PM
Moon Transit: 3:42 AM
Moonset: 10:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
5:21 PM - 7:51 PM

Minor Periods

9:34 PM - 11:04 PM
9:45 AM - 11:15 AM

Action Rating: 3 out of 5

Thursday, January 8, 2026

Weather Forecast

Sunny
50.1°F
41°F
44.2°F
83%
0 in
0%
0%
7.2 mph
0


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: 7:25 AM
Sun Transit: 12:14 AM
Sunset: 5:05 PM
Daylight: 9 hrs 40 mins
Moonrise: 11:07 PM
Moon Transit: 4:26 AM
Moonset: 10:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
6:03 PM - 8:33 PM

Minor Periods

12:00 AM - 12:00 AM
10:08 AM - 11:38 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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