Weather for McLean, Virginia
Current Weather
Humidity: 80%
Feels Like: 62.1°F
Wind: NNE 9.6 mph
Wind Gusts: 15.5 mph
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast
Wed
H: 69°F
L: 64°F
Thu
H: 85°F
L: 66°F
Fri
H: 92°F
L: 68°F
Sat
H: 80°F
L: 62°F
Sun
H: 73°F
L: 62°F
Air Quality
Nitrogen Dioxide: 17.76 μg/m3
Sulphur Dioxide: 7.22 μg/m3
Ozone: 59 μg/m3
Astronomical
Sun Transit: 1:03 PM
Sunset: 7:13 PM
Daylight: 12 hrs 21 mins
Moon Transit: 9:53 AM
Moonset: 5:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:23 AM - 11:53 AM
Minor Periods
4:52 PM - 6:22 PM1:44 AM - 3:14 AM
Action Rating: 2 out of 5
Coastal Flood Advisory issued September 16 at 5:54PM EDT until September 17 at 2:00AM EDT by NWS Baltimore MD/Washington DC
Effective: Tue September 16, 2025, 5:54 PM
Expires: Wed September 17, 2025, 2:00 AM
* WHAT...Up to one half foot of inundation above ground level expected in low lying areas due to tidal flooding. * WHERE...Shoreline in Charles and King George Counties. * WHEN...From 10 PM this evening to 2 AM EDT Wednesday, especially around the time of high tide. * IMPACTS...At 3.5 feet, water reaches yards near Cobb Island and docks near Dahlgren. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The next high tide at Indian Head is at 4:37 AM. The next high tide at Goose Bay is at 12:43 AM. The next high tide at Dahlgren is at 11:51 PM.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Coastal Flood Advisory issued September 16 at 5:54PM EDT until September 17 at 2:00AM EDT by NWS Baltimore MD/Washington DC
Effective: Tue September 16, 2025, 5:54 PM
Expires: Wed September 17, 2025, 2:00 AM
* WHAT...Up to one half foot of inundation above ground level expected in low lying areas due to tidal flooding. * WHERE...Shoreline in Charles and King George Counties. * WHEN...From 10 PM this evening to 2 AM EDT Wednesday, especially around the time of high tide. * IMPACTS...At 3.5 feet, water reaches yards near Cobb Island and docks near Dahlgren. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The next high tide at Indian Head is at 4:37 AM. The next high tide at Goose Bay is at 12:43 AM. The next high tide at Dahlgren is at 11:51 PM.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Coastal Flood Advisory issued September 16 at 5:54PM EDT until September 17 at 2:00AM EDT by NWS Baltimore MD/Washington DC
Effective: Tue September 16, 2025, 5:54 PM
Expires: Wed September 17, 2025, 2:00 AM
* WHAT...Up to one half foot of inundation above ground level expected in low lying areas due to tidal flooding. * WHERE...Shoreline in Charles and King George Counties. * WHEN...From 10 PM this evening to 2 AM EDT Wednesday, especially around the time of high tide. * IMPACTS...At 3.5 feet, water reaches yards near Cobb Island and docks near Dahlgren. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The next high tide at Indian Head is at 4:37 AM. The next high tide at Goose Bay is at 12:43 AM. The next high tide at Dahlgren is at 11:51 PM.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Weather Forecast
Average Temperature: 65.8°F
Average Humidity: 85%
Wind: 11 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 24.93 μg/m3
Sulphur Dioxide: 8.15 μg/m3
Ozone: 67.44 μg/m3
Astronomical
Sun Transit: 1:03 PM
Sunset: 7:13 PM
Daylight: 12 hrs 21 mins
Moon Transit: 9:53 AM
Moonset: 5:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:23 AM - 11:53 AM
Minor Periods
4:52 PM - 6:22 PM1:44 AM - 3:14 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 73.1°F
Average Humidity: 74%
Wind: 5.8 mph
UV Index: 1.2
Air Quality
Nitrogen Dioxide: 41.36 μg/m3
Sulphur Dioxide: 8.92 μg/m3
Ozone: 57.24 μg/m3
Astronomical
Sun Transit: 1:02 PM
Sunset: 7:11 PM
Daylight: 12 hrs 18 mins
Moon Transit: 10:44 AM
Moonset: 5:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:14 AM - 12:44 AM
Minor Periods
5:22 PM - 6:52 PM2:54 AM - 4:24 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 79.4°F
Average Humidity: 61%
Wind: 6.3 mph
UV Index: 1.5
Air Quality
Nitrogen Dioxide: 53.19 μg/m3
Sulphur Dioxide: 12.18 μg/m3
Ozone: 85.44 μg/m3
Astronomical
Sun Transit: 1:02 PM
Sunset: 7:10 PM
Daylight: 12 hrs 16 mins
Moon Transit: 11:30 AM
Moonset: 6:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%
Best Times for Fishing or Hunting
Major Periods
12:23 AM - 2:53 AM11:00 AM - 1:30 PM
Minor Periods
5:47 PM - 7:17 PM4:02 AM - 5:32 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 71.4°F
Average Humidity: 56%
Wind: 9.6 mph
UV Index: 1.5
Air Quality
Nitrogen Dioxide: 103.98 μg/m3
Sulphur Dioxide: 17.45 μg/m3
Ozone: 45.31 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 7:08 PM
Daylight: 12 hrs 13 mins
Moon Transit: 12:13 AM
Moonset: 6:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
1:08 AM - 3:38 AM11:43 AM - 2:13 PM
Minor Periods
6:10 PM - 7:40 PM5:07 AM - 6:37 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 67°F
Average Humidity: 77%
Wind: 7.6 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 7:07 PM
Daylight: 12 hrs 11 mins
Moon Transit: 12:55 AM
Moonset: 7:00 PM
Moon Phase: New
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
1:50 AM - 4:20 AM12:25 AM - 2:55 PM
Minor Periods
6:30 PM - 8:00 PM6:10 AM - 7:40 AM
Action Rating: 3 out of 5