Water Temperature of Difficult Run in Oakton, VA
Current Water Temperature
Measurement Time: Friday, July 25, 2025, 11:15 AM EDT
Temperature Locations
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Local Points of Interest
Fairfax, VASponsored Content
Station Name: DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 328 feet / 100 meters
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 (19.0 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 (45.0 mi)
Severn River, Annapolis, MD (46.4 mi)
Chesapeake Bay, Annapolis, MD (47.8 mi)
Weather for Oakton, Virginia
Current Weather

Humidity: 48%
Feels Like: 108.5°F
Wind: WNW 4.3 mph
Wind Gusts: 5.2 mph
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 3
Five Day Weather Forecast

Fri
H: 102°F
L: 75°F

Sat
H: 97°F
L: 74°F

Sun
H: 95°F
L: 76°F

Mon
H: 99°F
L: 78°F

Tue
H: 97°F
L: 75°F
Air Quality
Nitrogen Dioxide: 23.87 μg/m3
Sulphur Dioxide: 11.29 μg/m3
Ozone: 123 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:27 PM
Daylight: 14 hrs 22 mins
Moon Transit: 2:08 PM
Moonset: 9:21 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
2:57 AM - 5:27 AM1:38 PM - 4:08 PM
Minor Periods
8:51 PM - 10:21 PM6:14 AM - 7:44 AM
Action Rating: 5 out of 5
Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM
* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM
* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM
* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM
* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Heat Advisory issued July 25 at 9:22AM EDT until July 25 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Effective: Fri July 25, 2025, 9:22 AM
Expires: Fri July 25, 2025, 5:30 PM
* WHAT...Heat index values up to 107 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Weather Forecast
Average Temperature: 87.3°F
Average Humidity: 65%
Wind: 7.6 mph
UV Index: 2.3
Air Quality
Nitrogen Dioxide: 14.23 μg/m3
Sulphur Dioxide: 8.63 μg/m3
Ozone: 119.12 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:27 PM
Daylight: 14 hrs 22 mins
Moon Transit: 2:08 PM
Moonset: 9:21 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
2:57 AM - 5:27 AM1:38 PM - 4:08 PM
Minor Periods
8:51 PM - 10:21 PM6:14 AM - 7:44 AM
Action Rating: 5 out of 5
Weather Forecast
Average Temperature: 85.7°F
Average Humidity: 68%
Wind: 6 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 20.32 μg/m3
Sulphur Dioxide: 11.91 μg/m3
Ozone: 123 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:26 PM
Daylight: 14 hrs 21 mins
Moon Transit: 2:57 PM
Moonset: 9:48 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
3:48 AM - 6:18 AM2:27 PM - 4:57 PM
Minor Periods
9:18 PM - 10:48 PM7:24 AM - 8:54 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 85.7°F
Average Humidity: 71%
Wind: 7.2 mph
UV Index: 2.1
Air Quality
Nitrogen Dioxide: 21.04 μg/m3
Sulphur Dioxide: 6.9 μg/m3
Ozone: 118.8 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:25 PM
Daylight: 14 hrs 19 mins
Moon Transit: 3:41 PM
Moonset: 10:12 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
4:34 AM - 7:04 AM3:11 PM - 5:41 PM
Minor Periods
9:42 PM - 11:12 PM8:31 AM - 10:01 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 85.6°F
Average Humidity: 74%
Wind: 7.2 mph
UV Index: 2.7
Air Quality
Nitrogen Dioxide: 43.16 μg/m3
Sulphur Dioxide: 9.25 μg/m3
Ozone: 100.4 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:24 PM
Daylight: 14 hrs 17 mins
Moon Transit: 4:23 PM
Moonset: 10:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 9.3%
Best Times for Fishing or Hunting
Major Periods
5:17 AM - 7:47 AM3:53 PM - 6:23 PM
Minor Periods
10:03 PM - 11:33 PM9:34 AM - 11:04 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 85°F
Average Humidity: 62%
Wind: 6.7 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 33.78 μg/m3
Sulphur Dioxide: 11.1 μg/m3
Ozone: 68.38 μg/m3
Astronomical
Sun Transit: 1:15 PM
Sunset: 8:23 PM
Daylight: 14 hrs 15 mins
Moon Transit: 5:04 PM
Moonset: 10:54 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.9%
Best Times for Fishing or Hunting
Major Periods
5:58 AM - 8:28 AM4:34 PM - 7:04 PM
Minor Periods
10:24 PM - 11:54 PM10:35 AM - 12:05 AM
Action Rating: 3 out of 5