Water Temperature of Difficult Run in Oakton, VA

Current Water Temperature

58.5°F

Measurement Time: Tuesday, May 5, 2026, 6:15 AM 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

71.1°F
Sunny
Sunny
71.1°F
76.3°F
44%
SW 9.4 mph
11.2 mph
76.7°F
45.6°F
0 in
25%
9 mi
1012 mbar
3.1

Five Day Weather Forecast

Sunny
Tue
H: 90°F
L: 60°F
Moderate rain
Wed
H: 72°F
L: 52°F
Patchy rain nearby
Thu
H: 60°F
L: 50°F
Sunny
Fri
H: 69°F
L: 43°F
Patchy rain nearby
Sat
H: 75°F
L: 52°F

Air Quality

AQI: 2 - Moderate
PM2.5: 7.05 μg/m3
PM10: 8.35 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 151 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:06 PM
Sunset: 8:06 PM
Daylight: 13 hrs 59 mins
Moonrise: 12:25 AM
Moon Transit: 3:51 AM
Moonset: 8:18 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:21 AM - 5:51 AM
5:32 PM - 8:02 PM

Minor Periods

7:48 AM - 9:18 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Special Weather Statement issued May 5 at 3:40AM EDT by NWS Baltimore MD/Washington DC

Effective: Tue May 5, 2026, 3:40 AM
Expires: Tue May 5, 2026, 7:00 PM

The combination of 10 hour fuel moistures of 8 to 10 percent, relative humidity around 25 percent, and wind gusts of 30 to 35 mph will lead to an increased risk for the rapid spread of wildfires this afternoon. Residents and visitors are urged to properly dispose of cigarette butts, matches, and any other flammable items in appropriate containers. Additionally, exercise caution if operating any equipment that could create sparks and keep vehicles off of dry grass. Most dry grasses, dead leaves, and other tree litter could easily ignite and spread fire quickly. Lastly, remember to obey local burn bans. For more information about wildfire danger, burn restrictions, and wildfire prevention and education, please visit your state forestry or environmental protection website. For West Virginia, visit www.wvforestry.com... For Maryland, visit dnr.maryland.gov... For Virginia, visit dof.virginia.gov...


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

Effective: Tue May 5, 2026, 8:27 AM
Expires: Tue May 5, 2026, 8:37 AM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.
Tuesday, May 5, 2026

Weather Forecast

Sunny
89.6°F
59.5°F
73.7°F
35%
0 in
0%
0%
14.8 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 7.33 μg/m3
PM10: 8.05 μg/m3
Carbon Monoxide: 177.57 μg/m3
Nitrogen Dioxide: 9.01 μg/m3
Sulphur Dioxide: 4.11 μg/m3
Ozone: 115.16 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:06 PM
Sunset: 8:06 PM
Daylight: 13 hrs 59 mins
Moonrise: 12:25 AM
Moon Transit: 3:51 AM
Moonset: 8:18 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:21 AM - 5:51 AM
5:32 PM - 8:02 PM

Minor Periods

7:48 AM - 9:18 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, May 6, 2026

Weather Forecast

Moderate rain
71.9°F
52.4°F
62.6°F
75%
0.25 in
90%
0%
13.9 mph
3.5


Air Quality

AQI: 1 - Good
PM2.5: 6.67 μg/m3
PM10: 7.42 μg/m3
Carbon Monoxide: 175.21 μg/m3
Nitrogen Dioxide: 7.23 μg/m3
Sulphur Dioxide: 3.38 μg/m3
Ozone: 108.64 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:05 PM
Sunset: 8:07 PM
Daylight: 14 hrs 1 mins
Moonrise: 12:15 AM
Moon Transit: 4:42 AM
Moonset: 9:12 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
6:23 PM - 8:53 PM

Minor Periods

8:42 AM - 10:12 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 7, 2026

Weather Forecast

Patchy rain nearby
60.2°F
49.5°F
52.7°F
75%
0.05 in
88%
0%
7.2 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 8.85 μg/m3
PM10: 10.09 μg/m3
Carbon Monoxide: 207.17 μg/m3
Nitrogen Dioxide: 14.17 μg/m3
Sulphur Dioxide: 4.33 μg/m3
Ozone: 70.88 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:05 PM
Sunset: 8:08 PM
Daylight: 14 hrs 3 mins
Moonrise: 12:58 AM
Moon Transit: 5:33 AM
Moonset: 10:12 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
7:12 PM - 9:42 PM

Minor Periods

9:42 AM - 11:12 AM
12:28 AM - 1:58 AM

Action Rating: 2 out of 5

Friday, May 8, 2026

Weather Forecast

Sunny
68.9°F
42.9°F
56.4°F
51%
0 in
0%
0%
11.2 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 8.25 μg/m3
PM10: 8.85 μg/m3
Carbon Monoxide: 179.62 μg/m3
Nitrogen Dioxide: 10.46 μg/m3
Sulphur Dioxide: 4.87 μg/m3
Ozone: 79.72 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:05 PM
Sunset: 8:09 PM
Daylight: 14 hrs 5 mins
Moonrise: 1:35 AM
Moon Transit: 6:21 AM
Moonset: 11:15 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

5:51 AM - 8:21 AM
8:00 PM - 10:30 PM

Minor Periods

10:45 AM - 12:15 AM
1:05 AM - 2:35 AM

Action Rating: 4 out of 5

Saturday, May 9, 2026

Weather Forecast

Patchy rain nearby
75°F
52.2°F
61.1°F
63%
0.14 in
65%
0%
12.5 mph
4


Air Quality

AQI: 2 - Moderate
PM2.5: 18.29 μg/m3
PM10: 18.46 μg/m3
Carbon Monoxide: 345.25 μg/m3
Nitrogen Dioxide: 48.37 μg/m3
Sulphur Dioxide: 5.77 μg/m3
Ozone: 35.77 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:05 PM
Sunset: 8:10 PM
Daylight: 14 hrs 7 mins
Moonrise: 2:06 AM
Moon Transit: 7:08 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
8:45 PM - 11:15 PM

Minor Periods

11:49 AM - 1:19 PM
1:36 AM - 3:06 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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