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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 3:27 am MST Jan 17, 2026 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday M.L.King Day Tuesday Wednesday Thursday Friday
Sunny on This Afternoon Mostly Clear on Tonight Mostly Sunny on Sunday 40% chance of snow on M.L.King Day Sunny on Tuesday Mostly Sunny on Wednesday Sunny on Thursday 10% chance of snow on Friday
High: 38°F Low: 33 °F High: 52°F High: 39°F High: 53°F High: 43°F High: 44°F High: 42°F
Low: 19°F Low: 25°F Low: 25°F Low: 19°F Low: 22°F  
Sunny Mostly Clear Mostly Sunny Snow Sunny Mostly Sunny Sunny Snow
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Current Conditions at
BROOMFIELD - (KBJC)
30°
Clear
as of 12:50 PM MST
Rel. Humidity: 20%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
6 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
39°
Feels like 29°F
Clear
as of 12:56 PM MST
Rel. Humidity: 14%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 26 MPH
020° North
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
34°
Feels like 23°F
Mostly Clear
as of 12:53 PM MST
Rel. Humidity: 15%
Dew Point: -8°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
15 MPH
330° Northwest
Cloud Level(s): Few at 8000ft, Few at 14000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
32°
Mostly Clear
as of 12:58 PM MST
Rel. Humidity: 17%
Dew Point: -8°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
6 MPH
340° North
Cloud Level(s): Few at 8000ft, Few at 15000ft
Sunny on This Afternoon This Afternoon... Sunny, with a high near 38. West northwest wind 11 to 13 mph, with gusts as high as 22 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a temperature rising to around 33 by 2am. Breezy, with a west wind 9 to 14 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 34 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 52. Breezy, with a west wind 12 to 17 mph becoming east northeast 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.
30% chance of snow Sunday Night Sunday Night... A 30 percent chance of snow after 11pm. Mostly cloudy, with a low around 19. Calm wind. New snow accumulation of less than a half inch possible.
40% chance of snow M.L.King Day M.L.King Day... A 40 percent chance of snow before 11am. Mostly sunny, with a high near 39. Calm wind becoming south around 6 mph in the afternoon.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 25.
Sunny on Tuesday Tuesday... Sunny, with a high near 53.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 25.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 43.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 19.
Sunny on Thursday Thursday... Sunny, with a high near 44.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 22.
10% chance of snow Friday Friday... A slight chance of snow. Mostly sunny, with a high near 42.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:20 AM
Sunset: 5:02 PM
Civil Sunrise:06:51 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 6:05 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:38 PM
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