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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 8:47 pm MST Dec 18, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

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Overnight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
Cloudy on Overnight Dust on Friday 30% chance of rain on Saturday Mostly Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday 10% chance of rain on Christmas Day
Low: 35°F High: 65°F High: 53°F High: 55°F High: 65°F High: 64°F High: 63°F High: 60°F
Low: 39°F Low: 30°F Low: 38°F Low: 39°F Low: 38°F Low: 39°F  
Cloudy Dust Rain Mostly Sunny Sunny Mostly Sunny Mostly Sunny Rain
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Current Conditions at
BROOMFIELD - (KBJC)
54°
Clear
as of 1:15 AM MST
Rel. Humidity: 25%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.77 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 43 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
28°
Clear
as of 12:56 AM MST
Rel. Humidity: 46%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
34°
Feels like 25°F
Mostly Clear
as of 12:53 AM MST
Rel. Humidity: 37%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.77 in.
Flight Rule: VFR
Wind Data
12 MPH
140° Southeast
Cloud Level(s): Few at 18000ft, Few at 22000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
37°
Feels like 30°F
Partly Cloudy
as of 12:58 AM MST
Rel. Humidity: 34%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
10 MPH
110° East
Cloud Level(s): Few at 12000ft, Scattered at 22000ft
Cloudy on Overnight Overnight... Partly cloudy, with a low around 35. Windy, with a west southwest wind 21 to 31 mph, with gusts as high as 55 mph.
Dust on Friday Friday... Patchy blowing dust. Mostly sunny, with a high near 65. Strong and damaging winds, with a west wind 33 to 38 mph increasing to 45 to 50 mph in the afternoon. Winds could gust as high as 80 mph.
40% chance of rain Friday Night Friday Night... A chance of showers between 11pm and 4am, then a chance of rain after 4am. Areas of blowing dust before 2am. Partly cloudy, with a low around 39. Very windy, with a west wind 28 to 38 mph decreasing to 14 to 24 mph. Winds could gust as high as 60 mph. Chance of precipitation is 40%.
30% chance of rain Saturday Saturday... A 30 percent chance of rain, mainly before 11am. Partly sunny, with a high near 53. West wind 7 to 10 mph, with gusts as high as 25 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 30. West southwest wind around 5 mph becoming calm in the evening.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 55.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 38.
Sunny on Monday Monday... Sunny, with a high near 65.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 39.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 64.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 38.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 63.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 39.
10% chance of rain Christmas Day Christmas Day... A slight chance of rain. Mostly sunny, with a high near 60.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:19 AM
Sunset: 4:38 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:16 PM
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