Water Temperature of Dead Run in McLean, VA

Current Water Temperature

57.4°F 14.1°C
Cold Thermal Gear Required
57.4°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Saturday, November 7, 2026, 3:15 AM EST

Temperature Locations

View Nearby Locations     View All Virginia Locations     View Locations Near Me

Local Points of Interest

Dead Run; Langley Oaks Park

Sponsored Content

Dead Run

Station Name: DEAD RUN AT WHANN AVENUE NEAR MCLEAN, VA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 226 feet

Nearest Address:
800 Whann Ave
McLean, VA 22101
Fairfax County

GPS Coordinates: 38.95977716, -77.1756743

Nearby Water Temperatures

Difficult Run, McLean, VA (3.9 mi)
Sligo Creek, Takoma Park, MD (9.4 mi)
Difficult Run, Oakton, VA (9.9 mi)
Washington Channel, Washington, DC (10.2 mi)
Paint Branch, Calverton, MD (12.4 mi)
Northeast Branch Anacostia River, Riverdale Park, MD (13.4 mi)
Patuxent River, Brighton, MD (18.5 mi)
Potomac River, Point of Rocks, MD (29.3 mi)
Carroll Creek, Frederick, MD (34.9 mi)
Scotts Level Branch, Milford Mill, MD (35.5 mi)
Carroll Creek, Frederick, MD (35.8 mi)
Severn River, Annapolis, MD (37.5 mi)
Northwest Harbor, Baltimore, MD (38.4 mi)
Chesapeake Bay, Annapolis, MD (39.1 mi)
Herring Run, Baltimore, MD (41.5 mi)

Weather for McLean, Virginia

Current Weather

47.8°F
Sunny
Conditions: Sunny
Humidity: 58%
Feels Like: 43.2°F
Wind: WNW 10.3 mph
Wind Gusts: 24 mph
Pressure: 30.01 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0.2

Weather Forecast

Sunny
Sat
H: 57°F
L: 46°F
Sunny
Sun
H: 62°F
L: 46°F
Sunny
Mon
H: 62°F
L: 47°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
5.3 μg/m³
Good
PM10
5.3 μg/m³
Good
Ozone (O3)
51 μg/m³
Photochemical
NO2
9.4 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
163 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 19m daylight
Sunrise 6:43 AM
Solar Noon 11:52 AM
Sunset 5:02 PM
Moon
Waning Crescent • 1%
Moonrise 5:06 AM
Transit 10:32 AM
Moonset 3:50 PM

Best Times for Fishing or Hunting

Major Periods

10:02 AM - 12:32 PM
10:24 PM - 12:54 AM

Minor Periods

4:36 AM - 6:06 AM
3:20 PM - 4:50 PM
Action Rating:
Good Action 3/5

Small Craft Advisory issued November 7 at 2:00AM EST until November 8 at 6:00AM EST by NWS Baltimore MD/Washington DC

Effective: Sat November 7, 2026, 2:00 AM
Expires: Sat November 7, 2026, 10:00 AM

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt. * WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD, Patapsco River including Baltimore Harbor, and Patuxent River to Broomes Island MD. * WHEN...Until 6 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft.
Saturday, November 7, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 51.6°F
Average Humidity: 56%
Chance of Rain: 5%
Wind: 15.4 mph
UV Index: 2.8

Astronomical

Sun
10h 19m daylight
Sunrise 6:43 AM
Solar Noon 11:52 AM
Sunset 5:02 PM
Moon
Waning Crescent • 1%
Moonrise 5:06 AM
Transit 10:32 AM
Moonset 3:50 PM

Best Times for Fishing or Hunting

Major Periods

10:02 AM - 12:32 PM
10:24 PM - 12:54 AM

Minor Periods

4:36 AM - 6:06 AM
3:20 PM - 4:50 PM
Action Rating:
Good Action 3/5
Sunday, November 8, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 52.3°F
Average Humidity: 59%
Chance of Rain: 4%
Wind: 12.3 mph
UV Index: 2.8

Astronomical

Sun
10h 17m daylight
Sunrise 6:44 AM
Solar Noon 11:52 AM
Sunset 5:01 PM
Moon
New • 0%
Moonrise 6:11 AM
Transit 11:18 AM
Moonset 4:19 PM

Best Times for Fishing or Hunting

Major Periods

10:48 AM - 1:18 PM
11:11 PM - 1:41 AM

Minor Periods

5:41 AM - 7:11 AM
3:49 PM - 5:19 PM
Action Rating:
Peak Action 5/5
Monday, November 9, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 52.5°F
Average Humidity: 53%
Chance of Rain: 5%
Wind: 14.1 mph
UV Index: 5

Astronomical

Sun
10h 15m daylight
Sunrise 6:45 AM
Solar Noon 11:52 AM
Sunset 5:00 PM
Moon
New • 2%
Moonrise 7:15 AM
Transit 12:06 PM
Moonset 4:52 PM

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
11:36 AM - 2:06 PM

Minor Periods

6:45 AM - 8:15 AM
4:22 PM - 5:52 PM
Action Rating:
Very Good 4/5
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.

Webcams Near McLean, VA

Sponsored Content