Water Temperature of Upper Machedoc Creek in Dahlgren, VA

Current Water Temperature

82.4°F

Measurement Time: Saturday, July 25, 2026, 11:18 PM EDT

Today's Tides

 High: July 25, 12:34 AM, 1.9 ft
Low: July 25, 7:16 AM, 0.6 ft
 High: July 25, 12:53 PM, 1.6 ft
Low: July 25, 6:54 PM, 0.4 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

70.7°F
Clear
Clear
60.8°F
75.9°F
75%
S 4.9 mph
9.3 mph
70.7°F
62.3°F
0 in
0%
6 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 81°F
L: 67°F
Sunny
Sun
H: 85°F
L: 66°F
Sunny
Mon
H: 80°F
L: 66°F
Mist
Tue
H: 86°F
L: 69°F
Patchy rain nearby
Wed
H: 84°F
L: 71°F

Air Quality

AQI: 1 - Good
PM2.5: 10 μg/m3
PM10: 12.6 μg/m3
Carbon Monoxide: 111 μg/m3
Nitrogen Dioxide: 6.8 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:14 PM
Sunset: 8:25 PM
Daylight: 14 hrs 20 mins
Moonrise: 5:59 PM
Moon Transit: 10:27 PM
Moonset: 2:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

11:19 AM - 1:49 PM
12:00 AM - 12:00 AM

Minor Periods

5:29 PM - 6:59 PM
1:38 AM - 3:08 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
80.8°F
67.3°F
73.4°F
69%
0.07 in
57%
0%
7.6 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 11.21 μg/m3
PM10: 14.4 μg/m3
Carbon Monoxide: 106.54 μg/m3
Nitrogen Dioxide: 2.94 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 83.13 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:14 PM
Sunset: 8:25 PM
Daylight: 14 hrs 20 mins
Moonrise: 5:59 PM
Moon Transit: 10:27 PM
Moonset: 2:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

11:19 AM - 1:49 PM
12:00 AM - 12:00 AM

Minor Periods

5:29 PM - 6:59 PM
1:38 AM - 3:08 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
84.9°F
66.4°F
73.5°F
75%
0.19 in
65%
0%
10.3 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 9.75 μg/m3
PM10: 11.95 μg/m3
Carbon Monoxide: 112.25 μg/m3
Nitrogen Dioxide: 4.24 μg/m3
Sulphur Dioxide: 0.47 μg/m3
Ozone: 73.83 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:14 PM
Sunset: 8:24 PM
Daylight: 14 hrs 18 mins
Moonrise: 6:49 PM
Moon Transit: 11:19 PM
Moonset: 2:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

12:10 AM - 2:40 PM
12:00 AM - 12:00 AM

Minor Periods

6:19 PM - 7:49 PM
2:27 AM - 3:57 AM

Action Rating: 2 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
79.8°F
65.5°F
72.8°F
81%
0.04 in
50%
0%
11.4 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 9.83 μg/m3
PM10: 10.51 μg/m3
Carbon Monoxide: 131.63 μg/m3
Nitrogen Dioxide: 2.36 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 95.17 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:14 PM
Sunset: 8:23 PM
Daylight: 14 hrs 16 mins
Moonrise: 7:31 PM
Moon Transit: 12:00 AM
Moonset: 3:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:01 PM - 3:31 PM

Minor Periods

7:01 PM - 8:31 PM
3:22 AM - 4:52 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Mist
86.3°F
69°F
76.4°F
80%
0.36 in
76%
0%
10.7 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 9.89 μg/m3
PM10: 10.07 μg/m3
Carbon Monoxide: 147.38 μg/m3
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 81.33 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:14 PM
Sunset: 8:22 PM
Daylight: 14 hrs 15 mins
Moonrise: 8:08 PM
Moon Transit: 12:09 AM
Moonset: 4:52 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:51 PM - 4:21 PM

Minor Periods

7:38 PM - 9:08 PM
4:22 AM - 5:52 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Patchy rain nearby
83.6°F
70.6°F
76.5°F
76%
0.04 in
51%
0%
14.3 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 3.6 μg/m3
PM10: 3.63 μg/m3
Carbon Monoxide: 147.12 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:14 PM
Sunset: 8:21 PM
Daylight: 14 hrs 13 mins
Moonrise: 8:39 PM
Moon Transit: 12:58 AM
Moonset: 5:55 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:28 AM - 2:58 AM
2:39 PM - 5:09 PM

Minor Periods

8:09 PM - 9:39 PM
5:25 AM - 6:55 AM

Action Rating: 4 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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