Longmont

Weather in Longmont, live

The weather over Longmont as it is measured right now, from radar and the airport reports at Longmont/Brand Arpt and Boulder Muni, beside the forecast model’s temperature and wind. Each layer says which it is.

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Right now · as of

  • KLMO Longmont/Brand Arpt, 5 km: 21 °C (70 °F), wind from 050° at 7 kt, visibility 10+ miles · VFR · 17 minutes ago
  • KBDU Boulder Muni, 18 km: 21 °C (70 °F), wind from 030° at 3 kt, visibility 10+ miles · VFR · 17 minutes ago
  • KEIK Erie Muni, 18 km: 21 °C (69 °F), wind from 050° at 7 kt, visibility 7 miles · VFR · 17 minutes ago
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What the map shows over Longmont

  • Rain radarMeasuredLongmont is inside RainViewer’s radar coverage. Frames every 10 minutes for the last 2 hours.Open on the mapAbout this layer
  • LightningMeasuredLongmont 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 Longmont/Brand Arpt (KLMO), 5 km away, Boulder Muni (KBDU), 18 km away, Erie Muni (KEIK), 18 km away and Rocky Mtn Metro (KBJC), 30 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 Longmont 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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