Water Temperature of Difficult Run in Oakton, VA

Current Water Temperature

58.6°F

Measurement Time: Monday, April 13, 2026, 4:15 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

66.9°F
Partly cloudy
Partly cloudy
66.9°F
71.5°F
71%
SSW 13.2 mph
17.6 mph
70°F
54.3°F
0 in
75%
9 mi
1021 mbar
1.6

Five Day Weather Forecast

Sunny
Mon
H: 88°F
L: 57°F
Partly Cloudy
Tue
H: 82°F
L: 61°F
Sunny
Wed
H: 88°F
L: 68°F
Partly Cloudy
Thu
H: 86°F
L: 66°F
Sunny
Fri
H: 81°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 6.35 μg/m3
PM10: 6.65 μg/m3
Carbon Monoxide: 173.85 μg/m3
Nitrogen Dioxide: 5.85 μg/m3
Sulphur Dioxide: 3.95 μg/m3
Ozone: 106 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:09 PM
Sunset: 7:44 PM
Daylight: 13 hrs 8 mins
Moonrise: 4:33 AM
Moon Transit: 10:01 AM
Moonset: 3:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:31 AM - 12:01 AM

Minor Periods

3:10 PM - 4:40 PM
4:03 AM - 5:33 AM

Action Rating: 2 out of 5

Special Weather Statement issued April 13 at 4:18AM EDT by NWS Baltimore MD/Washington DC

Effective: Mon April 13, 2026, 4:18 AM
Expires: Mon April 13, 2026, 7:00 PM

The combination of 10 hour fuel moistures around 8 to 10 percent, relative humidities around 35 percent, and wind gusts of 20 to 30 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: Mon April 13, 2026, 8:28 AM
Expires: Mon April 13, 2026, 8:38 AM

Monitoring message only. Please disregard.

Monitoring message only. Please disregard.
Monday, April 13, 2026

Weather Forecast

Sunny
88.3°F
57.2°F
70.4°F
63%
0 in
0%
0%
15.4 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 7.94 μg/m3
PM10: 8.34 μg/m3
Carbon Monoxide: 189.25 μg/m3
Nitrogen Dioxide: 7.99 μg/m3
Sulphur Dioxide: 3.69 μg/m3
Ozone: 99.76 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:09 PM
Sunset: 7:44 PM
Daylight: 13 hrs 8 mins
Moonrise: 4:33 AM
Moon Transit: 10:01 AM
Moonset: 3:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:31 AM - 12:01 AM

Minor Periods

3:10 PM - 4:40 PM
4:03 AM - 5:33 AM

Action Rating: 2 out of 5

Tuesday, April 14, 2026

Weather Forecast

Partly Cloudy
81.5°F
60.6°F
71.3°F
63%
0 in
0%
0%
8.5 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 10.73 μg/m3
PM10: 11.07 μg/m3
Carbon Monoxide: 213.93 μg/m3
Nitrogen Dioxide: 13.35 μg/m3
Sulphur Dioxide: 3.06 μg/m3
Ozone: 82.32 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:09 PM
Sunset: 7:45 PM
Daylight: 13 hrs 11 mins
Moonrise: 4:57 AM
Moon Transit: 10:47 AM
Moonset: 4:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:17 AM - 12:47 AM

Minor Periods

4:19 PM - 5:49 PM
4:27 AM - 5:57 AM

Action Rating: 2 out of 5

Wednesday, April 15, 2026

Weather Forecast

Sunny
88.2°F
68.4°F
79.4°F
48%
0 in
0%
0%
9.6 mph
2.1


Air Quality

AQI: 1 - Good
PM2.5: 10.21 μg/m3
PM10: 10.93 μg/m3
Carbon Monoxide: 216.25 μg/m3
Nitrogen Dioxide: 12.75 μg/m3
Sulphur Dioxide: 2.93 μg/m3
Ozone: 83.84 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:09 PM
Sunset: 7:46 PM
Daylight: 13 hrs 13 mins
Moonrise: 5:21 AM
Moon Transit: 11:33 AM
Moonset: 5:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:25 AM - 2:55 AM
11:03 AM - 1:33 PM

Minor Periods

5:29 PM - 6:59 PM
4:51 AM - 6:21 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Partly Cloudy
86.3°F
66°F
77.1°F
46%
0 in
0%
0%
11.6 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 10.95 μg/m3
PM10: 11.51 μg/m3
Carbon Monoxide: 191.04 μg/m3
Nitrogen Dioxide: 20.48 μg/m3
Sulphur Dioxide: 3.73 μg/m3
Ozone: 79.36 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:09 PM
Sunset: 7:47 PM
Daylight: 13 hrs 16 mins
Moonrise: 5:47 AM
Moon Transit: 12:22 AM
Moonset: 7:11 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:52 AM - 2:22 PM

Minor Periods

6:41 PM - 8:11 PM
5:17 AM - 6:47 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Sunny
80.9°F
63.9°F
71.4°F
54%
0 in
0%
0%
9.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 8.2 μg/m3
PM10: 8.58 μg/m3
Carbon Monoxide: 195.01 μg/m3
Nitrogen Dioxide: 13.56 μg/m3
Sulphur Dioxide: 5.54 μg/m3
Ozone: 86.46 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:08 PM
Sunset: 7:48 PM
Daylight: 13 hrs 18 mins
Moonrise: 6:15 AM
Moon Transit: 1:14 PM
Moonset: 8:28 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

2:03 AM - 4:33 AM
12:44 AM - 3:14 PM

Minor Periods

7:58 PM - 9:28 PM
5:45 AM - 7:15 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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