Water Temperature of Difficult Run in Oakton, VA

Current Water Temperature

42.3°F

Measurement Time: Wednesday, January 14, 2026, 4:15 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

46.9°F
Overcast
Overcast
42.6°F
46.6°F
56%
SSW 8.9 mph
13.9 mph
42°F
33.9°F
0 in
100%
9 mi
997 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 62°F
L: 45°F
Partly Cloudy
Thu
H: 32°F
L: 24°F
Sunny
Fri
H: 34°F
L: 24°F
Overcast
Sat
H: 41°F
L: 34°F
Heavy snow
Sun
H: 31°F
L: 24°F

Air Quality

AQI: 1 - Good
PM2.5: 12.65 μg/m3
PM10: 12.65 μg/m3
Carbon Monoxide: 216.85 μg/m3
Nitrogen Dioxide: 25.05 μg/m3
Sulphur Dioxide: 8.85 μg/m3
Ozone: 25 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:18 AM
Sunset: 5:10 PM
Daylight: 9 hrs 44 mins
Moonrise: 4:15 AM
Moon Transit: 8:50 AM
Moonset: 1:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
12:00 AM - 12:00 AM

Minor Periods

12:52 AM - 2:22 PM
3:45 AM - 5:15 AM

Action Rating: 2 out of 5

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

Effective: Wed January 14, 2026, 7:27 PM
Expires: Wed January 14, 2026, 7:37 PM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.
Wednesday, January 14, 2026

Weather Forecast

Sunny
61.9°F
44.6°F
50.1°F
41%
0 in
0%
0%
10.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 7.88 μg/m3
PM10: 7.99 μg/m3
Carbon Monoxide: 299.65 μg/m3
Nitrogen Dioxide: 24.29 μg/m3
Sulphur Dioxide: 7.73 μg/m3
Ozone: 40.76 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:18 AM
Sunset: 5:10 PM
Daylight: 9 hrs 44 mins
Moonrise: 4:15 AM
Moon Transit: 8:50 AM
Moonset: 1:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
12:00 AM - 12:00 AM

Minor Periods

12:52 AM - 2:22 PM
3:45 AM - 5:15 AM

Action Rating: 2 out of 5

Thursday, January 15, 2026

Weather Forecast

Partly Cloudy
32.2°F
24°F
32°F
47%
0 in
0%
0%
16.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.63 μg/m3
PM10: 5.64 μg/m3
Carbon Monoxide: 264.93 μg/m3
Nitrogen Dioxide: 16.08 μg/m3
Sulphur Dioxide: 6.86 μg/m3
Ozone: 47.52 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:18 AM
Sunset: 5:11 PM
Daylight: 9 hrs 45 mins
Moonrise: 5:14 AM
Moon Transit: 9:41 AM
Moonset: 2:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:11 AM - 11:41 AM

Minor Periods

1:37 PM - 3:07 PM
4:44 AM - 6:14 AM

Action Rating: 2 out of 5

Friday, January 16, 2026

Weather Forecast

Sunny
33.6°F
24.3°F
29°F
45%
0 in
0%
0%
13 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.69 μg/m3
PM10: 4.76 μg/m3
Carbon Monoxide: 185.53 μg/m3
Nitrogen Dioxide: 13.59 μg/m3
Sulphur Dioxide: 7.48 μg/m3
Ozone: 58.96 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:19 AM
Sunset: 5:13 PM
Daylight: 9 hrs 47 mins
Moonrise: 6:08 AM
Moon Transit: 10:33 AM
Moonset: 3:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:03 AM - 12:33 AM

Minor Periods

2:30 PM - 4:00 PM
5:38 AM - 7:08 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Overcast
41.2°F
34.2°F
36.4°F
49%
0 in
0%
0%
13 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 9.93 μg/m3
PM10: 10.18 μg/m3
Carbon Monoxide: 214.06 μg/m3
Nitrogen Dioxide: 19.91 μg/m3
Sulphur Dioxide: 7.35 μg/m3
Ozone: 43.48 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:19 AM
Sunset: 5:14 PM
Daylight: 9 hrs 48 mins
Moonrise: 6:56 AM
Moon Transit: 11:26 AM
Moonset: 4:00 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:15 AM - 2:45 AM
10:56 AM - 1:26 PM

Minor Periods

3:30 PM - 5:00 PM
6:26 AM - 7:56 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Heavy snow
31.1°F
23.9°F
28.8°F
72%
0.29 in
78%
35%
13.2 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 9.38 μg/m3
PM10: 9.67 μg/m3
Carbon Monoxide: 229.23 μg/m3
Nitrogen Dioxide: 26.46 μg/m3
Sulphur Dioxide: 7.15 μg/m3
Ozone: 37.85 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:19 AM
Sunset: 5:15 PM
Daylight: 9 hrs 50 mins
Moonrise: 7:36 AM
Moon Transit: 12:17 AM
Moonset: 5:05 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

1:07 AM - 3:37 AM
11:47 AM - 2:17 PM

Minor Periods

4:35 PM - 6:05 PM
7:06 AM - 8:36 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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