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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 3:25 am MST Dec 21, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Christmas Day Friday Saturday
Mostly Sunny on Today Cloudy on Tonight Sunny on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday 10% chance of rain on Christmas Day 10% chance of rain on Friday 10% chance of rain & snow on Saturday
High: 57°F Low: 41°F High: 66°F High: 62°F High: 64°F High: 64°F High: 58°F High: 51°F
Low: 38°F Low: 39°F Low: 42°F Low: 39°F Low: 33°F  
Mostly Sunny Cloudy Sunny Partly Sunny Mostly Sunny Rain Rain Rain & Snow
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Current Conditions at
BROOMFIELD - (KBJC)
34°
Partly Cloudy
as of 6:55 AM MST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Scattered at 12000ft
Current Conditions at
FT COLLINS - (KFNL)
27°
Clear
as of 6:56 AM MST
Rel. Humidity: 86%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
6 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
28°
Mostly Cloudy
as of 6:53 AM MST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
8 MPH
230° Southwest
Cloud Level(s): Few at 10000ft, Broken at 20000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
30°
Feels like 21°F
Mostly Cloudy
as of 6:58 AM MST
Rel. Humidity: 68%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
10 MPH
180° South
Cloud Level(s): Few at 14000ft, Broken at 22000ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 57. West wind 5 to 10 mph, with gusts as high as 15 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 41. Breezy, with a west wind 9 to 17 mph, with gusts as high as 24 mph.
Sunny on Monday Monday... Sunny, with a high near 66. Breezy, with a west wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 38. West wind 6 to 13 mph, with gusts as high as 20 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 62. West wind around 6 mph becoming south in the afternoon.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 39.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 64. Breezy.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 42. Breezy.
10% chance of rain Christmas Day Christmas Day... A slight chance of rain. Mostly sunny, with a high near 64. Breezy.
10% chance of rain Thursday Night Thursday Night... A slight chance of rain. Mostly cloudy, with a low around 39.
10% chance of rain Friday Friday... A slight chance of rain. Partly sunny, with a high near 58. Breezy.
10% chance of rain & snow Friday Night Friday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 33.
10% chance of rain & snow Saturday Saturday... A slight chance of rain and snow. Partly sunny, with a high near 51.
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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