Water Temperature of Difficult Run in Oakton, VA

Current Water Temperature

36.9°F

Measurement Time: Monday, February 16, 2026, 1:15 AM EST

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

35.1°F
Mist
Mist
28.5°F
34.9°F
92%
NNW 8.1 mph
12.6 mph
27.5°F
33.7°F
0 in
100%
4 mi
1017 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 44°F
L: 35°F
Cloudy
Tue
H: 44°F
L: 36°F
Fog
Wed
H: 55°F
L: 39°F
Moderate rain
Thu
H: 44°F
L: 40°F
Moderate rain
Fri
H: 61°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 9.15 μg/m3
PM10: 9.25 μg/m3
Carbon Monoxide: 284.85 μg/m3
Nitrogen Dioxide: 20.95 μg/m3
Sulphur Dioxide: 7.65 μg/m3
Ozone: 50 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:23 AM
Sunset: 5:48 PM
Daylight: 10 hrs 49 mins
Moonrise: 6:41 AM
Moon Transit: 11:48 AM
Moonset: 5:04 PM
Moon Phase: New
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
11:18 AM - 1:48 PM

Minor Periods

4:34 PM - 6:04 PM
6:11 AM - 7:41 AM

Action Rating: 4 out of 5

Monday, February 16, 2026

Weather Forecast

Patchy rain nearby
44.4°F
34.7°F
38.6°F
93%
0.13 in
84%
0%
8.7 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 17.74 μg/m3
PM10: 17.93 μg/m3
Carbon Monoxide: 425.13 μg/m3
Nitrogen Dioxide: 37.79 μg/m3
Sulphur Dioxide: 8.21 μg/m3
Ozone: 26.04 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:23 AM
Sunset: 5:48 PM
Daylight: 10 hrs 49 mins
Moonrise: 6:41 AM
Moon Transit: 11:48 AM
Moonset: 5:04 PM
Moon Phase: New
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
11:18 AM - 1:48 PM

Minor Periods

4:34 PM - 6:04 PM
6:11 AM - 7:41 AM

Action Rating: 4 out of 5

Tuesday, February 17, 2026

Weather Forecast

Cloudy
43.5°F
35.8°F
39.4°F
95%
0 in
0%
0%
5.4 mph
0.6


Air Quality

AQI: 2 - Moderate
PM2.5: 21.01 μg/m3
PM10: 21.19 μg/m3
Carbon Monoxide: 385.69 μg/m3
Nitrogen Dioxide: 41.05 μg/m3
Sulphur Dioxide: 9.17 μg/m3
Ozone: 32.72 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:23 AM
Sunset: 5:49 PM
Daylight: 10 hrs 51 mins
Moonrise: 7:07 AM
Moon Transit: 12:34 AM
Moonset: 6:12 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:26 AM - 3:56 AM
12:04 AM - 2:34 PM

Minor Periods

5:42 PM - 7:12 PM
6:37 AM - 8:07 AM

Action Rating: 5 out of 5

Wednesday, February 18, 2026

Weather Forecast

Fog
54.8°F
39.2°F
45.1°F
92%
0 in
0%
0%
4.5 mph
0.2


Air Quality

AQI: 2 - Moderate
PM2.5: 16.02 μg/m3
PM10: 16.35 μg/m3
Carbon Monoxide: 295.81 μg/m3
Nitrogen Dioxide: 26.28 μg/m3
Sulphur Dioxide: 7.91 μg/m3
Ozone: 53.2 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:23 AM
Sunset: 5:50 PM
Daylight: 10 hrs 53 mins
Moonrise: 7:32 AM
Moon Transit: 1:20 PM
Moonset: 7:19 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

2:12 AM - 4:42 AM
12:50 AM - 3:20 PM

Minor Periods

6:49 PM - 8:19 PM
7:02 AM - 8:32 AM

Action Rating: 4 out of 5

Thursday, February 19, 2026

Weather Forecast

Moderate rain
43.5°F
40.3°F
44.1°F
93%
0.28 in
69%
0%
7.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 8.38 μg/m3
PM10: 8.63 μg/m3
Carbon Monoxide: 248.66 μg/m3
Nitrogen Dioxide: 19.05 μg/m3
Sulphur Dioxide: 6.09 μg/m3
Ozone: 58.4 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:23 AM
Sunset: 5:51 PM
Daylight: 10 hrs 56 mins
Moonrise: 7:56 AM
Moon Transit: 4:07 PM
Moonset: 8:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

3:37 PM - 6:07 PM
3:37 PM - 6:07 PM

Minor Periods

7:58 PM - 9:28 PM
7:26 AM - 8:56 AM

Action Rating: 4 out of 5

Friday, February 20, 2026

Weather Forecast

Moderate rain
61°F
40.3°F
45.6°F
93%
0.46 in
87%
0%
8.5 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 9.36 μg/m3
PM10: 10.25 μg/m3
Carbon Monoxide: 298.13 μg/m3
Nitrogen Dioxide: 25.71 μg/m3
Sulphur Dioxide: 5.05 μg/m3
Ozone: 43.62 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:23 AM
Sunset: 5:52 PM
Daylight: 10 hrs 58 mins
Moonrise: 8:20 AM
Moon Transit: 12:00 AM
Moonset: 9:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:44 AM - 6:14 AM

Minor Periods

9:08 PM - 10:38 PM
7:50 AM - 9:20 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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