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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 3:26 pm MST Nov 17, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Sunny on This Afternoon Cloudy on Tonight Mostly Sunny on Tuesday Mostly Sunny on Wednesday 40% chance of rain on Thursday 20% chance of rain & snow on Friday Sunny on Saturday Sunny on Sunday
High: 56°F Low: 36°F High: 60°F High: 61°F High: 50°F High: 47°F High: 53°F High: 55°F
Low: 35°F Low: 35°F Low: 33°F Low: 29°F Low: 30°F  
Mostly Sunny Cloudy Mostly Sunny Mostly Sunny Rain Rain & Snow Sunny Sunny
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Current Conditions at
BROOMFIELD - (KBJC)
54°
Clear
as of 2:52 PM MST
Rel. Humidity: 27%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
30 MPH
Gust: 44 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
59°
Clear
as of 3:18 PM MST
Rel. Humidity: 22%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: VFR
Wind Data
9 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
57°
Mostly Cloudy
as of 2:53 PM MST
Rel. Humidity: 22%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
23 MPH
Gust: 32 MPH
280° West
Cloud Level(s): Few at 10000ft, Scattered at 15000ft, Broken at 20000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
59°
Clear
as of 2:58 PM MST
Rel. Humidity: 21%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: VFR
Wind Data
16 MPH
310° Northwest
Cloud Level(s): Few at 11000ft, Few at 13000ft, Scattered at 16000ft, Broken at 22000ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 56. Breezy, with a west wind 22 to 24 mph, with gusts as high as 34 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 36. Breezy, with a west wind 6 to 16 mph, with gusts as high as 26 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 60. West wind around 6 mph becoming calm in the afternoon.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 35. West wind around 6 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 61. West wind 5 to 7 mph becoming calm in the afternoon.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 35.
40% chance of rain Thursday Thursday... A 40 percent chance of rain, mainly after 11am. Partly sunny, with a high near 50.
70% chance of rain & snow Thursday Night Thursday Night... Rain likely before 11pm, then rain likely, possibly mixed with snow. Cloudy, with a low around 33.
20% chance of rain & snow Friday Friday... A chance of rain and snow before 11am, then a slight chance of rain. Mostly cloudy, with a high near 47.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 29.
Sunny on Saturday Saturday... Sunny, with a high near 53.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 30.
Sunny on Sunday Sunday... Sunny, with a high near 55.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 06:50 AM
Sunset: 4:43 PM
Civil Sunrise:06:20 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 05:47 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 6:17 PM
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