Water Temperature of Dead Run in McLean, VA

Current Water Temperature

32.0°F

Measurement Time: Friday, January 30, 2026, 8:00 PM EST

Temperature Locations

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Local Points of Interest

Dead Run; Langley Oaks Park

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

8.1°F
Clear
Clear
-2.4°F
2.2°F
54%
NNW 6 mph
9.3 mph
-8.4°F
-7.8°F
0 in
0%
9 mi
1025 mbar
0

Five Day Weather Forecast

Partly Cloudy
Sat
H: 21°F
L: 0°F
Overcast
Sun
H: 24°F
L: 11°F
Sunny
Mon
H: 34°F
L: 12°F
Overcast
Tue
H: 38°F
L: 21°F
Cloudy
Wed
H: 34°F
L: 26°F

Air Quality

PM2.5: 7.85 μg/m3
PM10: 7.95 μg/m3
Carbon Monoxide: 222.85 μg/m3
Nitrogen Dioxide: 21.75 μg/m3
Sulphur Dioxide: 4.65 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:22 AM
Sunset: 5:29 PM
Daylight: 10 hrs 13 mins
Moonrise: 4:05 PM
Moon Transit: 11:46 PM
Moonset: 6:35 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 PM
12:00 AM - 12:00 AM

Minor Periods

3:35 PM - 5:05 PM
6:05 AM - 7:35 AM

Action Rating: 4 out of 5

Saturday, January 31, 2026

Weather Forecast

Partly Cloudy
20.5°F
0.1°F
10.7°F
70%
0 in
0%
0%
12.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 13.9 μg/m3
PM10: 14.19 μg/m3
Carbon Monoxide: 288.33 μg/m3
Nitrogen Dioxide: 30.47 μg/m3
Sulphur Dioxide: 5.63 μg/m3
Ozone: 46.04 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:22 AM
Sunset: 5:29 PM
Daylight: 10 hrs 13 mins
Moonrise: 4:05 PM
Moon Transit: 11:46 PM
Moonset: 6:35 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 PM
12:00 AM - 12:00 AM

Minor Periods

3:35 PM - 5:05 PM
6:05 AM - 7:35 AM

Action Rating: 4 out of 5

Sunday, February 1, 2026

Weather Forecast

Overcast
24.1°F
11.1°F
17.2°F
72%
0 in
0%
0%
16.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.37 μg/m3
PM10: 6.54 μg/m3
Carbon Monoxide: 208.97 μg/m3
Nitrogen Dioxide: 12.01 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 67.08 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:22 AM
Sunset: 5:30 PM
Daylight: 10 hrs 15 mins
Moonrise: 5:21 PM
Moon Transit: 12:00 AM
Moonset: 7:15 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:30 PM - 4:00 PM

Minor Periods

4:51 PM - 6:21 PM
6:45 AM - 8:15 AM

Action Rating: 4 out of 5

Monday, February 2, 2026

Weather Forecast

Sunny
33.8°F
12.4°F
21.5°F
73%
0 in
0%
0%
15.4 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 7.76 μg/m3
PM10: 7.91 μg/m3
Carbon Monoxide: 211.06 μg/m3
Nitrogen Dioxide: 14.92 μg/m3
Sulphur Dioxide: 5.81 μg/m3
Ozone: 70.32 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:22 AM
Sunset: 5:31 PM
Daylight: 10 hrs 17 mins
Moonrise: 6:35 PM
Moon Transit: 12:41 AM
Moonset: 7:48 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:11 AM - 2:41 AM
2:22 PM - 4:52 PM

Minor Periods

6:05 PM - 7:35 PM
7:18 AM - 8:48 AM

Action Rating: 4 out of 5

Tuesday, February 3, 2026

Weather Forecast

Overcast
37.5°F
20.5°F
28.2°F
76%
0 in
0%
0%
6.5 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 11.72 μg/m3
PM10: 11.79 μg/m3
Carbon Monoxide: 254.39 μg/m3
Nitrogen Dioxide: 30.1 μg/m3
Sulphur Dioxide: 7.77 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:22 AM
Sunset: 5:32 PM
Daylight: 10 hrs 19 mins
Moonrise: 7:44 PM
Moon Transit: 1:31 AM
Moonset: 8:15 AM
Moon Phase: Full
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
3:10 PM - 5:40 PM

Minor Periods

7:14 PM - 8:44 PM
7:45 AM - 9:15 AM

Action Rating: 4 out of 5

Wednesday, February 4, 2026

Weather Forecast

Cloudy
33.8°F
26°F
29.7°F
76%
0 in
0%
0%
7.4 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:22 AM
Sunset: 5:33 PM
Daylight: 10 hrs 21 mins
Moonrise: 8:50 PM
Moon Transit: 2:17 AM
Moonset: 8:39 AM
Moon Phase: Full
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

1:47 AM - 4:17 AM
3:55 PM - 6:25 PM

Minor Periods

8:20 PM - 9:50 PM
8:09 AM - 9:39 AM

Action Rating: 3 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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