Water Temperature of Difficult Run in Oakton, VA

Current Water Temperature

81.7°F

Measurement Time: Friday, July 3, 2026, 12:15 PM EDT

Temperature Locations

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Local Points of Interest

Fairfax, VA

Difficult Run

Station Name: DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 328 feet

Nearest Address:
11200 Lapham Dr
Oakton, VA 22124
Fairfax County

GPS Coordinates: 38.88469518, -77.3324293

Nearby Water Temperatures

Difficult Run, McLean, VA (7.8 mi)
Dead Run, McLean, VA (9.9 mi)
Washington Channel, Washington, DC (16.7 mi)
Sligo Creek, Takoma Park, MD (19 mi)
Paint Branch, Calverton, MD (22.3 mi)
Northeast Branch Anacostia River, Riverdale Park, MD (22.5 mi)
Patuxent River, Brighton, MD (27.6 mi)
Potomac River, Point of Rocks, MD (29.1 mi)
Carroll Creek, Frederick, MD (37.7 mi)
Spout Run, Boyce, VA (38.2 mi)
Carroll Creek, Frederick, MD (38.5 mi)
Upper Machedoc Creek, Dahlgren, VA (42.2 mi)
Scotts Level Branch, Milford Mill, MD (45 mi)
Severn River, Annapolis, MD (46.4 mi)
Chesapeake Bay, Annapolis, MD (47.8 mi)

Weather for Oakton, Virginia

Current Weather

98.1°F
Sunny
Sunny
107.3°F
120.3°F
46%
WNW 4.5 mph
5.1 mph
103.6°F
75.5°F
0 in
25%
9 mi
1017 mbar
9

Five Day Weather Forecast

Sunny
Fri
H: 104°F
L: 76°F
Sunny
Sat
H: 101°F
L: 71°F
Sunny
Sun
H: 97°F
L: 70°F
Fog
Mon
H: 92°F
L: 70°F
Partly Cloudy
Tue
H: 92°F
L: 70°F

Air Quality

AQI: 1 - Good
PM2.5: 11 μg/m3
PM10: 13.6 μg/m3
Carbon Monoxide: 114 μg/m3
Nitrogen Dioxide: 1.9 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 148 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:13 PM
Sunset: 8:39 PM
Daylight: 14 hrs 50 mins
Moonrise: 11:04 PM
Moon Transit: 3:48 AM
Moonset: 9:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
5:24 PM - 7:54 PM

Minor Periods

12:00 AM - 12:00 AM
8:36 AM - 10:06 AM

Action Rating: 3 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
104°F
76.1°F
89.4°F
59%
0 in
3%
0%
12.1 mph
10


Air Quality

AQI: 2 - Moderate
PM2.5: 17.21 μg/m3
PM10: 20.6 μg/m3
Carbon Monoxide: 166.04 μg/m3
Nitrogen Dioxide: 13.18 μg/m3
Sulphur Dioxide: 2.83 μg/m3
Ozone: 100.29 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:13 PM
Sunset: 8:39 PM
Daylight: 14 hrs 50 mins
Moonrise: 11:04 PM
Moon Transit: 3:48 AM
Moonset: 9:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
5:24 PM - 7:54 PM

Minor Periods

12:00 AM - 12:00 AM
8:36 AM - 10:06 AM

Action Rating: 3 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
100.5°F
70.6°F
83.3°F
62%
0.79 in
65%
0%
17.9 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 13.28 μg/m3
PM10: 14.03 μg/m3
Carbon Monoxide: 151.83 μg/m3
Nitrogen Dioxide: 14.48 μg/m3
Sulphur Dioxide: 2.47 μg/m3
Ozone: 97.29 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:13 PM
Sunset: 8:38 PM
Daylight: 14 hrs 49 mins
Moonrise: 12:04 AM
Moon Transit: 4:32 AM
Moonset: 10:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

4:02 AM - 6:32 AM
6:07 PM - 8:37 PM

Minor Periods

9:39 AM - 11:09 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, July 5, 2026

Weather Forecast

Sunny
96.6°F
70.2°F
79°F
76%
0.84 in
74%
0%
13.6 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 15.2 μg/m3
PM10: 15.84 μg/m3
Carbon Monoxide: 164.38 μg/m3
Nitrogen Dioxide: 11.19 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 115.13 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:14 PM
Sunset: 8:38 PM
Daylight: 14 hrs 48 mins
Moonrise: 12:27 AM
Moon Transit: 5:14 AM
Moonset: 11:12 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
12:00 AM - 12:00 AM

Minor Periods

10:42 AM - 12:12 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 6, 2026

Weather Forecast

Fog
92.3°F
70.2°F
76.7°F
84%
0.27 in
83%
0%
13.6 mph
8


Air Quality

AQI: 2 - Moderate
PM2.5: 17.05 μg/m3
PM10: 18.79 μg/m3
Carbon Monoxide: 184.25 μg/m3
Nitrogen Dioxide: 12.6 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 97.04 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:14 PM
Sunset: 8:38 PM
Daylight: 14 hrs 48 mins
Moonrise: 12:49 AM
Moon Transit: 5:57 AM
Moonset: 12:17 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

5:27 AM - 7:57 AM
12:45 AM - 3:15 PM

Minor Periods

11:47 AM - 1:17 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 7, 2026

Weather Forecast

Partly Cloudy
91.9°F
70.1°F
80.3°F
72%
0.02 in
36%
0%
7.8 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 5.77 μg/m3
PM10: 5.94 μg/m3
Carbon Monoxide: 239.67 μg/m3
Nitrogen Dioxide: 12.61 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:14 PM
Sunset: 8:38 PM
Daylight: 14 hrs 47 mins
Moonrise: 12:13 AM
Moon Transit: 12:00 AM
Moonset: 1:23 PM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:19 PM - 10:49 PM

Minor Periods

12:53 AM - 2:23 PM
12:00 AM - 12:00 AM

Action Rating: 3 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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