Johnstown, Colorado Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

Click for Hazardous Weather Outlook for Johnstown, Colorado
Click for Air Quality Alert for Johnstown, Colorado
Change location by the zip code or city,state: or search for other weather forecast locations in Colorado by name.
Weather Forecast for Johnstown, Colorado : Weld County
Issued: 4:01 am MDT Jul 2, 2025 Latitude: 40.3369272 Longitude: -104.9121967 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Independence Day Saturday Sunday Monday Tuesday
Sunny on Today Mostly Clear on Tonight 20% chance of thunderstorms on Thursday 30% chance of thunderstorms on Independence Day 20% chance of thunderstorms on Saturday 20% chance of thunderstorms on Sunday 10% chance of thunderstorms on Monday 10% chance of thunderstorms on Tuesday
High: 96°F Low: 59°F High: 93°F High: 89°F High: 93°F High: 89°F High: 91°F High: 94°F
Low: 63°F Low: 59°F Low: 58°F Low: 58°F Low: 59°F  
Sunny Mostly Clear Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms
-
Current Conditions at
FT COLLINS - (KFNL)
73°
Clear
as of 8:56 AM MDST
Rel. Humidity: 46%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
GREELEY - (KGXY)
73°
Clear
as of 8:56 AM MDST
Rel. Humidity: 53%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
BROOMFIELD - (KBJC)
75°
Clear
as of 8:45 AM MDST
Rel. Humidity: 31%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
6 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
DENVER INTL - (KDEN)
73°
Clear
as of 8:53 AM MDST
Rel. Humidity: 40%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
8 MPH
240° Southwest
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 96. Light and variable wind becoming east southeast 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. East southeast wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
20% chance of thunderstorms Thursday Thursday... A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 93. Light and variable wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
30% chance of thunderstorms Thursday Night Thursday Night... A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63. East northeast wind 5 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph.
30% chance of thunderstorms Independence Day Independence Day... A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. West northwest wind 5 to 7 mph becoming east in the afternoon. Winds could gust as high as 17 mph.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 59.
20% chance of thunderstorms Saturday Saturday... A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 58.
20% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.
10% chance of thunderstorms Sunday Night Sunday Night... A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
10% chance of thunderstorms Monday Monday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 59.
10% chance of thunderstorms Tuesday Tuesday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Current Radar Image


Sun Almanac for Johnstown, Colorado
Sunrise: 05:34 AM
Sunset: 8:33 PM
Civil Sunrise:05:02 AM
Civil Sunset: 9:06 PM
Nautical Sunrise: 04:20 AM
Nautical Sunset: 9:48 PM
Astro Sunrise: 03:31 AM
Astro Sunset: 10:36 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.