Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 4:01 am MDT Jul 10, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
50% chance of thunderstorms on Today Mostly Cloudy on Tonight 60% chance of thunderstorms on Friday 40% chance of thunderstorms on Saturday Sunny on Sunday 20% chance of thunderstorms on Monday 20% chance of thunderstorms on Tuesday Thunderstorms on Wednesday
High: 91°F Low: 59°F High: 84°F High: 79°F High: 89°F High: 90°F High: 82°F High: 75°F
Low: 56°F Low: 57°F Low: 60°F Low: 59°F Low: 56°F  
Thunderstorms Mostly Cloudy Thunderstorms Thunderstorms Sunny Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
FT COLLINS - (KFNL)
90°
Clear
as of 10:56 AM MDST
Rel. Humidity: 18%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
16 MPH
340° North
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
88°
Partly Cloudy
as of 10:53 AM MDST
Rel. Humidity: 19%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
7 MPH
Cloud Level(s): Few at 9000ft, Scattered at 14000ft, Scattered at 22000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
88°
Partly Cloudy
as of 10:58 AM MDST
Rel. Humidity: 16%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
5 MPH
Cloud Level(s): Few at 8000ft, Scattered at 14000ft, Scattered at 22000ft
50% chance of thunderstorms Today Today... A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 91. West wind 11 to 13 mph becoming north northeast in the afternoon. Winds could gust as high as 21 mph.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, then gradually becoming clear, with a low around 59. North wind 5 to 11 mph becoming west in the evening. Winds could gust as high as 20 mph.
60% chance of thunderstorms Friday Friday... Showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 84. Calm wind becoming east northeast 5 to 8 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 60%.
60% chance of thunderstorms Friday Night Friday Night... Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56. North northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
40% chance of thunderstorms Saturday Saturday... A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. Calm wind becoming east around 6 mph in the afternoon.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 57.
Sunny on Sunday Sunday... Sunny, with a high near 89.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 60.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 59.
20% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
20% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Thunderstorms on Wednesday Wednesday... Showers and thunderstorms likely. Mostly cloudy, with a high near 75.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 05:41 AM
Sunset: 8:32 PM
Civil Sunrise:05:09 AM
Civil Sunset: 9:04 PM
Nautical Sunrise: 04:29 AM
Nautical Sunset: 9:45 PM
Astro Sunrise: 03:42 AM
Astro Sunset: 10:31 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.