Johnstown, Colorado Weather
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Weather Forecast for Johnstown, Colorado : Weld County
Issued: 3:59 am MDT May 9, 2025 Latitude: 40.3369272 Longitude: -104.9121967 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on Today Mostly Clear on Tonight Sunny on Saturday 20% chance of thunderstorms on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday 10% chance of thunderstorms on Wednesday 10% chance of thunderstorms on Thursday
High: 77°F Low: 45°F High: 81°F High: 86°F High: 87°F High: 87°F High: 76°F High: 72°F
Low: 47°F Low: 51°F Low: 51°F Low: 51°F Low: 45°F  
Mostly Sunny Mostly Clear Sunny Thunderstorms Mostly Sunny Mostly Sunny Thunderstorms Thunderstorms
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Current Conditions at
FT COLLINS - (KFNL)
57°
Clear
as of 8:56 AM MDST
Rel. Humidity: 62%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.37 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
57°
Partly Cloudy
as of 8:53 AM MDST
Rel. Humidity: 62%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.37 in.
Flight Rule: VFR
Wind Data
6 MPH
250° West
Cloud Level(s): Few at 9000ft, Few at 12000ft, Scattered at 22000ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 77. Calm wind becoming east 5 to 8 mph in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 45. North northeast wind 5 to 8 mph becoming light and variable after midnight.
Sunny on Saturday Saturday... Sunny, with a high near 81. Light and variable wind becoming south southeast 8 to 13 mph in the afternoon. Winds could gust as high as 16 mph.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 47. South southeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.
20% chance of thunderstorms Sunday Sunday... A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 86. Light and variable wind becoming south 8 to 13 mph in the afternoon. Winds could gust as high as 21 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 51.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 87. Breezy.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 51.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 87. Breezy.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 51.
10% chance of thunderstorms Wednesday Wednesday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Breezy.
10% chance of rain Wednesday Night Wednesday Night... A slight chance of showers. Partly cloudy, with a low around 45. Breezy.
10% chance of thunderstorms Thursday Thursday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72. Breezy.
Current Radar Image


Sun Almanac for Johnstown, Colorado
Sunrise: 05:49 AM
Sunset: 8:03 PM
Civil Sunrise:05:19 AM
Civil Sunset: 8:34 PM
Nautical Sunrise: 04:41 AM
Nautical Sunset: 9:11 PM
Astro Sunrise: 04:00 AM
Astro Sunset: 9:52 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.