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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 4:36 am MST Dec 20, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Christmas Day Friday
40% chance of rain on Today Cloudy on Tonight Mostly Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday 10% chance of  on Christmas Day 10% chance of rain on Friday
High: 54°F Low: 30°F High: 57°F High: 66°F High: 63°F High: 64°F High: 62°F High: 58°F
Low: 41°F Low: 37°F Low: 38°F Low: 41°F Low: 38°F  
Rain Cloudy Mostly Sunny Sunny Partly Sunny Mostly Sunny Partly Sunny Rain
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Current Conditions at
BROOMFIELD - (KBJC)
36°
Cloudy
as of 9:45 AM MST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: IFR
Wind Data
6 MPH
160° South
Cloud Level(s): Solid Overcast at 900ft
Current Conditions at
FT COLLINS - (KFNL)
34°
Cloudy
as of 9:56 AM MST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: MVFR
Wind Data
3 MPH
160° South
Cloud Level(s): Solid Overcast at 1600ft
Current Conditions at
DENVER INTL - (KDEN)
34°
Feels like 25°F
Mostly Cloudy
as of 9:53 AM MST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: MVFR
Wind Data
10 MPH
140° Southeast
Cloud Level(s): Broken at 1300ft, Broken at 9000ft, Broken at 20000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
37°
Mostly Cloudy
as of 9:58 AM MST
Rel. Humidity: 69%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: MVFR
Wind Data
6 MPH
180° South
Cloud Level(s): Broken at 1300ft, Broken at 19000ft
40% chance of rain Today Today... A 40 percent chance of rain. Partly sunny, with a high near 54. West wind 9 to 11 mph, with gusts as high as 30 mph.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 30. West wind 3 to 5 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 57. West wind 5 to 7 mph becoming south southwest in the morning. Winds could gust as high as 16 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 41. West southwest wind 7 to 10 mph, with gusts as high as 22 mph.

Sunny on Monday Monday... Sunny, with a high near 66. Breezy, with a west wind 13 to 16 mph, with gusts as high as 37 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 37.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 63.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 38.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 64.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 41.

10% chance of  Christmas Day Christmas Day... A slight chance of showers. Partly sunny, with a high near 62.

10% chance of rain Thursday Night Thursday Night... A slight chance of showers. Mostly cloudy, with a low around 38.

10% chance of rain Friday Friday... A slight chance of showers. Mostly sunny, with a high near 58.

Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:20 AM
Sunset: 4:38 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:16 PM
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