Altona, Colorado Weather
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Weather Forecast for Altona, Colorado : Boulder County
Issued: 9:15 pm MDT Sep 15, 2025 Latitude: 40.1338744 Longitude: -105.2827677 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
10% chance of rain on Tonight 60% chance of thunderstorms on Tuesday 70% chance of thunderstorms on Wednesday 30% chance of thunderstorms on Thursday Sunny on Friday Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday
Low: 53°F High: 75°F High: 65°F High: 66°F High: 73°F High: 80°F High: 80°F High: 78°F
Low: 49°F Low: 46°F Low: 46°F Low: 49°F Low: 53°F Low: 53°F  
Rain Thunderstorms Thunderstorms Thunderstorms Sunny Sunny Mostly Sunny Sunny
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Current Conditions at
FT COLLINS - (KFNL)
64°
Clear
as of 9:56 PM MDST
Rel. Humidity: 45%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
7 MPH
030° Northeast
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
64°
Partly Cloudy
as of 9:53 PM MDST
Rel. Humidity: 34%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
12 MPH
160° South
Cloud Level(s): Few at 8500ft, Scattered at 14000ft, Scattered at 20000ft
Current Conditions at
BUCKLEY ANGB ARPT - (KBKF)
72°
Mostly Clear
as of 9:58 PM MDST
Rel. Humidity: 24%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 22 MPH
180° South
Cloud Level(s): Few at 11000ft
10% chance of rain Tonight Tonight... A 10 percent chance of showers before 11pm. Partly cloudy, with a low around 53. West wind 3 to 6 mph.
60% chance of thunderstorms Tuesday Tuesday... Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 75. Light and variable wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 60%.
60% chance of thunderstorms Tuesday Night Tuesday Night... Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 49. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
70% chance of thunderstorms Wednesday Wednesday... A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 65. Calm wind becoming north northeast around 6 mph in the afternoon. Chance of precipitation is 70%.
40% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
30% chance of thunderstorms Thursday Thursday... A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 46.
Sunny on Friday Friday... Sunny, with a high near 73.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 49.
Sunny on Saturday Saturday... Sunny, with a high near 80.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 53.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 80.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 53.
Sunny on Monday Monday... Sunny, with a high near 78.
Current Radar Image


Sun Almanac for Altona, Colorado
Sunrise: 06:44 AM
Sunset: 7:08 PM
Civil Sunrise:06:16 AM
Civil Sunset: 7:35 PM
Nautical Sunrise: 05:44 AM
Nautical Sunset: 8:07 PM
Astro Sunrise: 05:12 AM
Astro Sunset: 8:40 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.