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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 7:36 pm MST Dec 21, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Christmas Day Friday Saturday Sunday
Cloudy on Tonight Mostly Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Christmas Day Partly Sunny on Friday 10% chance of rain & snow on Saturday Sunny on Sunday
Low: 42°F High: 69°F High: 65°F High: 64°F High: 63°F High: 57°F High: 47°F High: 50°F
Low: 39°F Low: 39°F Low: 42°F Low: 37°F Low: 30°F Low: 26°F  
Cloudy Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Partly Sunny Rain & Snow Sunny
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Current Conditions at
BROOMFIELD - (KBJC)
43°
Clear
as of 8:54 PM MST
Rel. Humidity: 56%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
3 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
43°
Clear
as of 8:56 PM MST
Rel. Humidity: 60%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
5 MPH
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
39°
Mostly Clear
as of 8:53 PM MST
Rel. Humidity: 60%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
6 MPH
260° West
Cloud Level(s): Few at 22000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
41°
Mostly Clear
as of 8:58 PM MST
Rel. Humidity: 48%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 16000ft, Few at 22000ft
Cloudy on Tonight Tonight... Partly cloudy, with a low around 42. West wind 9 to 14 mph, with gusts as high as 21 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 69. Windy, with a west wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 37 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 39. West wind 6 to 11 mph, with gusts as high as 18 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 65. West southwest wind 5 to 7 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 39. West wind around 7 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 64.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 42.
Mostly Sunny on Christmas Day Christmas Day... Mostly sunny, with a high near 63. Breezy.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 37.
Partly Sunny on Friday Friday... Partly sunny, with a high near 57. Breezy.
10% chance of rain & snow Friday Night Friday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 30.
10% chance of rain & snow Saturday Saturday... A slight chance of rain and snow. Mostly cloudy, with a high near 47.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 26.
Sunny on Sunday Sunday... Sunny, with a high near 50.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:20 AM
Sunset: 4:39 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:17 PM
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