Grand Island, Colorado Weather
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Weather Forecast for Grand Island, Colorado : Boulder County
Issued: 3:59 am MDT May 9, 2025 Latitude: 39.9708202 Longitude: -105.6033346 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
50% chance of thunderstorms on Today 20% chance of thunderstorms on Tonight 20% chance of thunderstorms on Saturday 40% chance of thunderstorms on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday 20% chance of snow on Wednesday 20% chance of snow on Thursday
High: 47°F Low: 32°F High: 54°F High: 57°F High: 59°F High: 58°F High: 47°F High: 44°F
Low: 38°F Low: 40°F Low: 39°F Low: 33°F Low: 30°F  
Thunderstorms Thunderstorms Thunderstorms Thunderstorms Mostly Sunny Mostly Sunny Snow Snow
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Current Conditions at
KREMMLING - (K20V)
50°
Clear
as of 9:35 AM MDST
Rel. Humidity: 34%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.49 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
COPPER MTN/RED CLFF - (KCCU)
43°
Mostly Cloudy
as of 9:35 AM MDST
Rel. Humidity: 56%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.66 in.
Flight Rule: VFR
Wind Data
7 MPH
340° North
Cloud Level(s): Scattered at 3500ft, Broken at 4600ft, Broken at 5500ft
50% chance of thunderstorms Today Today... A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 47. East northeast wind 7 to 10 mph. Chance of precipitation is 50%.
20% chance of thunderstorms Tonight Tonight... A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Partly cloudy, with a low around 32. East northeast wind 5 to 8 mph becoming west after midnight. Chance of precipitation is 20%.
20% chance of thunderstorms Saturday Saturday... A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 54. West northwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 20%.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 38. Breezy, with an east southeast wind 7 to 15 mph becoming west after midnight. Winds could gust as high as 28 mph.
40% chance of thunderstorms Sunday Sunday... A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. Breezy, with a west wind 8 to 15 mph, with gusts as high as 28 mph.
20% chance of thunderstorms Sunday Night Sunday Night... A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 40. Breezy. Chance of precipitation is 20%.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 59. Breezy.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 39. Breezy.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 58. Breezy.
10% chance of rain & snow Tuesday Night Tuesday Night... A slight chance of rain and snow showers. Partly cloudy, with a low around 33. Breezy.
20% chance of snow Wednesday Wednesday... A chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 47. Windy.
20% chance of snow Wednesday Night Wednesday Night... A chance of snow showers. Partly cloudy, with a low around 30. Windy.
20% chance of snow Thursday Thursday... A chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 44. Windy.
Sun Almanac for Grand Island, Colorado
Sunrise: 05:53 AM
Sunset: 8:05 PM
Civil Sunrise:05:22 AM
Civil Sunset: 8:35 PM
Nautical Sunrise: 04:45 AM
Nautical Sunset: 9:12 PM
Astro Sunrise: 04:05 AM
Astro Sunset: 9:53 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.