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Altona, Colorado Weather Forecast
Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 8:12 pm MST Jan 18, 2026 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Overnight M.L.King Day Tuesday Wednesday Thursday Friday Saturday Sunday
70% chance of snow on Overnight 30% chance of snow on M.L.King Day Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday 10% chance of snow on Friday 10% chance of snow on Saturday Mostly Sunny on Sunday
Low: 20°F High: 40°F High: 50°F High: 49°F High: 51°F High: 43°F High: 40°F High: 43°F
Low: 25°F Low: 25°F Low: 22°F Low: 24°F Low: 19°F Low: 18°F  
Snow Snow Sunny Sunny Mostly Sunny Snow Snow Mostly Sunny
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Current Conditions at
BROOMFIELD - (KBJC)
28°
Feels like 19°F
Cloudy
Light Snow
as of 11:35 PM MST
Rel. Humidity: 79%
Dew Point: 23°F
Visibility: 5 Miles
Pressure: 30.24 in.
Flight Rule: MVFR
Wind Data
9 MPH
070° East
Cloud Level(s): Scattered at 1300ft, Broken at 3900ft, Solid Overcast at 4700ft
Current Conditions at
FT COLLINS - (KFNL)
27°
Feels like 17°F
Cloudy
Light Snow Mist
as of 11:25 PM MST
Rel. Humidity: 86%
Dew Point: 23°F
Visibility: 2 1/2 Miles
Pressure: 30.26 in.
Flight Rule: IFR
Wind Data
9 MPH
090° East
Cloud Level(s): Few at 600ft, Solid Overcast at 1600ft
Current Conditions at
DENVER INTL - (KDEN)
25°
Cloudy
Light Snow
as of 11:40 PM MST
Rel. Humidity: 92%
Dew Point: 23°F
Visibility: 7 Miles
Pressure: 30.23 in.
Flight Rule: MVFR
Wind Data
7 MPH
050° Northeast
Cloud Level(s): Scattered at 600ft, Broken at 1100ft, Solid Overcast at 4100ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
25°
Feels like 15°F
Cloudy
Light Snow Mist
as of 11:27 PM MST
Rel. Humidity: 79%
Dew Point: 19°F
Visibility: 7 Miles
Pressure: 30.21 in.
Flight Rule: MVFR
Wind Data
9 MPH
060° Northeast
Cloud Level(s): Solid Overcast at 3000ft
70% chance of snow Overnight Overnight... Snow likely, mainly before 4am. Cloudy, with a low around 20. Calm wind. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.
30% chance of snow M.L.King Day M.L.King Day... A 30 percent chance of snow, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 40. Calm wind becoming south southeast around 5 mph. Little or no snow accumulation expected.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 25. South wind 6 to 13 mph becoming west in the evening. Winds could gust as high as 21 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 50. Breezy, with a west wind 14 to 17 mph, with gusts as high as 28 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 25. West wind 6 to 11 mph, with gusts as high as 18 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 49.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 22.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 51.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 24.
10% chance of snow Friday Friday... A slight chance of snow after 11am. Partly sunny, with a high near 43.
20% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 19.
10% chance of snow Saturday Saturday... A slight chance of snow. Partly sunny, with a high near 40.
10% chance of snow Saturday Night Saturday Night... A slight chance of snow. Partly cloudy, with a low around 18.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 43.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:19 AM
Sunset: 5:04 PM
Civil Sunrise:06:50 AM
Civil Sunset: 5:34 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 6:07 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:40 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.