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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 am MST Jan 18, 2026 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Today Tonight M.L.King Day Tuesday Wednesday Thursday Friday Saturday
Sunny on Today 60% chance of snow on Tonight 30% chance of snow on M.L.King Day Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday 10% chance of snow on Saturday
High: 49°F Low: 20°F High: 40°F High: 50°F High: 47°F High: 55°F High: 46°F High: 40°F
Low: 24°F Low: 26°F Low: 24°F Low: 28°F Low: 20°F  
Sunny Snow Snow Sunny Sunny Mostly Sunny Mostly Sunny Snow
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Current Conditions at
BROOMFIELD - (KBJC)
50°
Feels like 43°F
Clear
as of 9:47 AM MST
Rel. Humidity: 18%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 32 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
45°
Clear
as of 9:56 AM MST
Rel. Humidity: 28%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
8 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
48°
Partly Cloudy
as of 9:53 AM MST
Rel. Humidity: 21%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
5 MPH
300° Northwest
Cloud Level(s): Few at 8000ft, Few at 13000ft, Scattered at 22000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
48°
Partly Cloudy
as of 9:58 AM MST
Rel. Humidity: 21%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
3 MPH
010° North
Cloud Level(s): Few at 8000ft, Few at 14000ft, Scattered at 22000ft
Sunny on Today Today... Sunny, with a high near 49. West northwest wind 6 to 9 mph becoming east northeast in the afternoon. Winds could gust as high as 15 mph.
60% chance of snow Tonight Tonight... Snow likely, mainly between 11pm and 2am. Mostly cloudy, with a low around 20. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
30% chance of snow M.L.King Day M.L.King Day... A 30 percent chance of snow before 8am. 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 24. Breezy, with a west wind 6 to 11 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 50. Breezy, with a west wind 18 to 23 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 32 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 26.
Sunny on Wednesday Wednesday... Sunny, with a high near 47.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 24.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 55.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 28.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 46.
10% chance of snow Friday Night Friday Night... A slight chance of snow. Mostly cloudy, with a low around 20.
10% chance of snow Saturday Saturday... A slight chance of snow. Mostly sunny, with a high near 40.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 07:20 AM
Sunset: 5:03 PM
Civil Sunrise:06:50 AM
Civil Sunset: 5:33 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 6:06 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:39 PM
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