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Grand Island, Colorado Weather Forecast
Grand Island, Colorado Weather
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Weather Forecast for Grand Island, Colorado : Boulder County
Issued: 2:16 pm MST Dec 16, 2025 Latitude: 39.9708202 Longitude: -105.6033346 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Clear on Tonight 50% chance of blowing snow on Wednesday 20% chance of snow on Thursday Sunny on Friday 20% chance of snow on Saturday 10% chance of snow on Sunday Sunny on Monday Sunny on Tuesday
Low: 25°F High: 36°F High: 28°F High: 40°F High: 36°F High: 37°F High: 40°F High: 41°F
Low: 12°F Low: 25°F Low: 34°F Low: 29°F Low: 30°F Low: 29°F  
Mostly Clear Blowing Snow Snow Sunny Snow Snow Sunny Sunny
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Current Conditions at
BROOMFIELD - (KBJC)
48°
Feels like 42°F
Clear
as of 6:45 PM MST
Rel. Humidity: 29%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
15 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
KREMMLING - (K20V)
25°
Clear
as of 7:15 PM MST
Rel. Humidity: 79%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
3 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
FT COLLINS - (KFNL)
46°
Clear
as of 6:56 PM MST
Rel. Humidity: 31%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
8 MPH
190° South
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 25. Windy, with a west wind 21 to 26 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 55 mph.

50% chance of blowing snow Wednesday Wednesday... A 50 percent chance of snow after 11am. Areas of blowing snow before noon, then patchy blowing snow after 2pm. Increasing clouds, with a high near 36. Very windy, with a west wind 43 to 47 mph, with gusts as high as 80 mph. New snow accumulation of 1 to 3 inches possible.

90% chance of blowing snow Wednesday Night Wednesday Night... Snow, mainly before 11pm. The snow could be heavy at times. Widespread blowing snow. Low around 12. Wind chill values as low as -12. Strong and damaging winds, with a west wind 46 to 55 mph, with gusts as high as 85 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

20% chance of snow Thursday Thursday... A 20 percent chance of snow after 11am. Mostly sunny, with a high near 28. Wind chill values as low as -13. Very windy, with a west wind 36 to 41 mph decreasing to 28 to 33 mph in the afternoon. Winds could gust as high as 70 mph.

20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 25. Strong and damaging winds, with a west wind 33 to 38 mph increasing to 45 to 50 mph after midnight. Winds could gust as high as 90 mph.

Sunny on Friday Friday... Sunny, with a high near 40. Strong and damaging winds.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 34. Strong and damaging winds.

20% chance of snow Saturday Saturday... A chance of snow, mainly before 11am. Partly sunny, with a high near 36. Very windy.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 29. Windy.

10% chance of snow Sunday Sunday... A slight chance of snow before 11am. Mostly sunny, with a high near 37. Windy.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 30. Windy.

Sunny on Monday Monday... Sunny, with a high near 40. Windy.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 29. Windy.

Sunny on Tuesday Tuesday... Sunny, with a high near 41. Windy.

Current Radar Image


Sun Almanac for Grand Island, Colorado
Sunrise: 07:18 AM
Sunset: 4:39 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:16 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.