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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 Nov 29, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on Overnight 30% chance of snow on Sunday Sunny on Monday Partly Sunny on Tuesday 20% chance of snow on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday Mostly Sunny on Saturday
Low: 9 °F High: 26°F High: 36°F High: 46°F High: 33°F High: 42°F High: 44°F High: 49°F
Low: 15°F Low: 20°F Low: 23°F Low: 17°F Low: 23°F Low: 29°F  
Mostly Cloudy Snow Sunny Partly Sunny Snow Mostly Sunny Partly Sunny Mostly Sunny
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Current Conditions at
BROOMFIELD - (KBJC)
18°
Clear
as of 12:15 AM MST
Rel. Humidity: 67%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
8 MPH
340° North
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
16°
Clear
as of 11:56 PM MST
Rel. Humidity: 66%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
10°
Feels like -2°F
Clear
as of 11:53 PM MST
Rel. Humidity: 78%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
9 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
14°
Feels like 1°F
Mostly Cloudy
as of 11:58 PM MST
Rel. Humidity: 66%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
9 MPH
150° Southeast
Cloud Level(s): Broken at 22000ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 9. Calm wind.
30% chance of snow Sunday Sunday... A 30 percent chance of snow after 11am. Mostly cloudy, with a high near 26. Light north northeast wind. New snow accumulation of less than a half inch possible.
60% chance of snow Sunday Night Sunday Night... Snow likely, mainly before 11pm. Mostly cloudy, with a low around 15. Light north wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunny on Monday Monday... Sunny, with a high near 36. West wind around 5 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 20. West wind 7 to 9 mph, with gusts as high as 16 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 46.
20% chance of snow Tuesday Night Tuesday Night... A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 23.
20% chance of snow Wednesday Wednesday... A chance of snow. Mostly cloudy, with a high near 33.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 17.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 42.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 23.
Partly Sunny on Friday Friday... Partly sunny, with a high near 44.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 29.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 49.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:04 AM
Sunset: 4:36 PM
Civil Sunrise:06:34 AM
Civil Sunset: 5:06 PM
Nautical Sunrise: 06:00 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:27 AM
Astro Sunset: 6:13 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.