Water Temperature of Difficult Run in Oakton, VA

Current Water Temperature

32.2°F

Measurement Time: Saturday, February 14, 2026, 9:15 PM 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

30°F
Partly cloudy
Partly cloudy
28.3°F
36.3°F
81%
ESE 2.2 mph
4 mph
34.1°F
34.9°F
0 in
75%
9 mi
1018 mbar
0

Five Day Weather Forecast

Heavy rain
Sun
H: 40°F
L: 33°F
Moderate rain
Mon
H: 42°F
L: 36°F
Partly Cloudy
Tue
H: 54°F
L: 34°F
Mist
Wed
H: 53°F
L: 42°F
Sunny
Thu
H: 62°F
L: 43°F

Air Quality

PM2.5: 47.95 μg/m3
PM10: 48.95 μg/m3
Carbon Monoxide: 496.85 μg/m3
Nitrogen Dioxide: 57.85 μg/m3
Sulphur Dioxide: 9.85 μg/m3
Ozone: 5 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:23 AM
Sunset: 5:47 PM
Daylight: 10 hrs 46 mins
Moonrise: 6:09 AM
Moon Transit: 11:00 AM
Moonset: 3:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:30 AM - 1:00 PM

Minor Periods

3:26 PM - 4:56 PM
5:39 AM - 7:09 AM

Action Rating: 3 out of 5

This is only a test for monitoring of vital dissemination systems.

Effective: Sun February 15, 2026, 1:27 AM
Expires: Sun February 15, 2026, 1:37 AM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.
Sunday, February 15, 2026

Weather Forecast

Heavy rain
39.7°F
32.7°F
37.2°F
95%
1.17 in
88%
0%
5.6 mph
0.2


Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 42 μg/m3
PM10: 43.05 μg/m3
Carbon Monoxide: 622.97 μg/m3
Nitrogen Dioxide: 61.54 μg/m3
Sulphur Dioxide: 9.83 μg/m3
Ozone: 4.88 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:23 AM
Sunset: 5:47 PM
Daylight: 10 hrs 46 mins
Moonrise: 6:09 AM
Moon Transit: 11:00 AM
Moonset: 3:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:30 AM - 1:00 PM

Minor Periods

3:26 PM - 4:56 PM
5:39 AM - 7:09 AM

Action Rating: 3 out of 5

Monday, February 16, 2026

Weather Forecast

Moderate rain
42.1°F
36.3°F
38.8°F
93%
0.31 in
86%
0%
7.2 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 29.95 μg/m3
PM10: 31.29 μg/m3
Carbon Monoxide: 377.89 μg/m3
Nitrogen Dioxide: 40.75 μg/m3
Sulphur Dioxide: 8.4 μg/m3
Ozone: 20.96 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

Partly Cloudy
53.9°F
33.6°F
43.3°F
82%
0 in
0%
0%
5.1 mph
0.7


Air Quality

AQI: 2 - Moderate
PM2.5: 29.63 μg/m3
PM10: 31.58 μg/m3
Carbon Monoxide: 507.51 μg/m3
Nitrogen Dioxide: 48.09 μg/m3
Sulphur Dioxide: 9.77 μg/m3
Ozone: 21.48 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

Mist
52.9°F
42.1°F
46.9°F
88%
0 in
0%
0%
8.7 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 20.89 μg/m3
PM10: 21.25 μg/m3
Carbon Monoxide: 337.1 μg/m3
Nitrogen Dioxide: 34.75 μg/m3
Sulphur Dioxide: 8.84 μg/m3
Ozone: 34.92 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

Sunny
62.2°F
42.6°F
51.3°F
70%
0 in
0%
0%
13 mph
4


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: 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

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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