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Altona, Colorado Weather

Altona, Colorado — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for Altona, Boulder County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Flight conditions near Altona — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…

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NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Altona and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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About Altona, Colorado

Altona rests in a shallow basin, where the foothills of the Rockies begin their slow, granite-boned ascent. It lies 8.2 miles north of Boulder, CO (from Boulder, CO: bearing 356°T), and is situated 9.8 miles west-south-west of Longmont. The land here is a patchwork of golden grasses, punctuated by the sturdy, dark green of ponderosa pines that cling to the slopes. A gentle breeze often whispers through the cottonwood trees lining the intermittent creek beds, carrying the dry, sun-baked scent of sagebrush. The sky above is vast, a canvas that shifts from the pale blue of morning to the bruised purples and oranges of sunset, painting the landscape in ever-changing hues. Life in Altona unfolds with a quiet, deliberate grace, a stark contrast to the bustling energy of the cities further east. The history of Altona is deeply entwined with the agricultural bounty of the surrounding plains, a legacy still visible in the weathered barns and the patient fields of alfalfa. For generations, this land sustained ranchers and farmers, their lives dictated by the seasons and the flow of the nearby rivers. While the boom and bust cycles of mining have largely bypassed this particular valley, the spirit of self-reliance and connection to the land remains a defining characteristic of Altona. The small, independent businesses that dot the main thoroughfare speak to a local economy built on hard work and community support, a quiet resilience that echoes through the years.

LocationAltona, Boulder County, Colorado
Coordinates40.133874°N, 105.282768°W
TimezoneMountain Time (America/Denver)
ZIP Code(s)80302
Area Code303, 720
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service