McLean

Weather in McLean, live

The weather over McLean as it is measured right now, from radar and the airport reports at Washington/Reagan-National Arpt and College Park Arpt, beside the forecast model’s temperature and wind. Each layer says which it is.

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Right now · as of

  • KDCA Washington/Reagan-National Arpt, 16 km: 17 °C (63 °F), wind from 340° at 10 kt, visibility 10+ miles · VFR · 5 minutes ago
  • KCGS College Park Arpt, 22 km: 13 °C (55 °F), wind calm, visibility 10+ miles · VFR · 22 minutes ago
  • KIAD Washington/Dulles Intl, 23 km: 18 °C (64 °F), wind from 020° at 8 kt, visibility 10+ miles · VFR · 5 minutes ago
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What the map shows over McLean

  • Rain radarMeasuredMcLean is inside RainViewer’s radar coverage. Frames every 10 minutes for the last 2 hours.Open on the mapAbout this layer
  • LightningMeasuredMcLean is inside the area NOAA’s lightning layer covers, the Americas and the Pacific. Strike density every 15 minutes.Open on the mapAbout this layer
  • Temperature mapForecast modelNOAA’s GFS model on a 0.25° grid, points about 25 km apart: the forecast for now, not a thermometer reading.Open on the mapAbout this layer
  • Wind mapForecast modelWind 10 metres up from the same model, so it smooths over streets and hills.Open on the mapAbout this layer
  • Severe weather alertsOfficial warningsActive alerts from the US National Weather Service, each pinned as one point.Open on the mapAbout this layer
  • Airport weather (METAR)MeasuredThe latest reports from Washington/Reagan-National Arpt (KDCA), 16 km away, College Park Arpt (KCGS), 22 km away, Washington/Dulles Intl (KIAD), 23 km away and Fort Belvoir/Davison (KDAA), 24 km away, usually every hour.Open on the mapAbout this layer

Good to know

  • Radar, lightning and airport reports are measurements. Temperature and wind are a forecast model’s values for the nearest hour, which can differ from what a thermometer in McLean reads.
  • Radar detail stops at about zoom 7 and lightning at zoom 8, so the weather of a single street isn’t resolved.
  • For a picture of conditions, not for safety decisions: follow the warnings of your local weather service.

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