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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 2:11 pm MST Jan 21, 2026 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Cloudy on Tonight Mostly Sunny on Thursday 50% chance of snow on Friday 40% chance of snow on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday
Low: 16°F High: 36°F High: 20°F High: 12°F High: 25°F High: 41°F High: 45°F High: 49°F
Low: 8 °F Low: 3 °F Low: -2°F Low: 11°F Low: 23°F Low: 24°F  
Cloudy Mostly Sunny Snow Snow Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
BROOMFIELD - (KBJC)
52°
Clear
as of 3:47 PM MST
Rel. Humidity: 14%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
14 MPH
070° East
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
46°
Feels like 41°F
Clear
as of 3:56 PM MST
Rel. Humidity: 22%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
9 MPH
130° Southeast
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
45°
Feels like 38°F
Partly Cloudy
as of 3:53 PM MST
Rel. Humidity: 24%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
14 MPH
090° East
Cloud Level(s): Few at 15000ft, Scattered at 22000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
48°
Feels like 42°F
Partly Cloudy
as of 3:58 PM MST
Rel. Humidity: 12%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
14 MPH
130° Southeast
Cloud Level(s): Few at 15000ft, Scattered at 22000ft
Cloudy on Tonight Tonight... Partly cloudy, with a low around 16. Northwest wind around 6 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 36. Light and variable wind becoming east northeast around 6 mph in the afternoon.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 8. Light north wind.
50% chance of snow Friday Friday... A 50 percent chance of snow. Mostly cloudy, with a high near 20. Calm wind becoming east northeast around 6 mph in the morning. New snow accumulation of less than a half inch possible.
70% chance of snow Friday Night Friday Night... Snow likely. Cloudy, with a low around 3. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
40% chance of snow Saturday Saturday... A 40 percent chance of snow. Mostly cloudy, with a high near 12.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around -2.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 25.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 11.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 41.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 23.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 45.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 24.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 49.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:18 AM
Sunset: 5:07 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:36 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 6:09 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:42 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.