Our Proprietary 10-Day Forecast

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Current warnings over Johnstown, Colorado
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Johnstown, Colorado red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Johnstown, Colorado red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Weld County, CO

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Johnstown, Colorado

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Johnstown, CO please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Johnstown, CO

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Johnstown, CO, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Johnstown, Colorado

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Weld County, Colorado

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
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  • American HRRR
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  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Here is a climate summary for Johnstown, Colorado:

Temperature

    •   Average annual temperature: 47.5°F (8.6°C)
    •   Average summer temperature (June-August): 68.4°F (20.2°C)
    •   Average winter temperature (December-February): 29.1°F (-1.6°C)
    •   Record high temperature: 105°F (40.6°C)
    •   Record low temperature: -36°F (-37.8°C)

Precipitation

    •   Average annual precipitation: 16.13 inches (410 mm)
    •   Average annual snowfall: 48.3 inches (123 cm)
    •   Wettest month: May (2.58 inches or 65.5 mm)
    •   Driest month: January (0.46 inches or 11.7 mm)

Climate Classification

    •   Köppen climate classification: Dfb (warm-summer continental climate)

Other Climate Data

    •   Average annual sunshine: 250 sunny days
    •   Average annual relative humidity: 60%
    •   Average wind speed: 10 mph (16 km/h)

Climate Summary

Johnstown, Colorado experiences a continental climate with warm summers and cold, dry winters. The city receives an average of 16.13 inches of precipitation per year, with most of it falling in the spring and summer months. Snowfall is common in the winter, with an average of 48.3 inches per year. Johnstown is located in a high-altitude desert region, so the air is typically dry and the humidity is low. The city experiences an average of 250 sunny days per year.

Additional Information

    •   Johnstown is located in Weld County, Colorado, approximately 45 miles (72 km) north of Denver.
    •   The city has a population of approximately 10,000 people.
    •   Johnstown is home to a number of businesses and industries, including agriculture, manufacturing, and tourism.
    •   The city is also a popular destination for outdoor recreation, with activities such as hiking, biking, fishing, and camping.

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   Johnstown sits on the Cache la Poudre River, renowned for its world-class whitewater rafting.

    •   The nearby Rocky Mountain National Park is home to diverse wildlife, including elk, moose, and black bears.

    •   The area boasts a rich fossil record, including dinosaur footprints and marine fossils.

Science

    •   Johnstown is home to the Rocky Mountain Biological Laboratory, a renowned research institution focusing on ecology and conservation.

    •   The town is a hub for renewable energy, with numerous solar and wind farms in the surrounding area.

Personalities

  • Enos Mills:

    A conservationist and author who played a pivotal role in the establishment of Rocky Mountain National Park.

  • George Johnson:

    A pioneer who founded Johnstown in 1864 and built a canal that brought water to the town.

  • William Allen White:

    A Pulitzer Prize-winning journalist and author who lived in Johnstown for a period.

  • Tourist Attractions
    1.Rocky Mountain National Park

    (located 15 miles west of Johnstown): A stunning national park with majestic mountains, pristine lakes, and abundant wildlife. Visitors can enjoy hiking, camping, fishing, and wildlife viewing.

    2.Estes Park

    (located 12 miles west of Johnstown): A charming mountain town that serves as the gateway to Rocky Mountain National Park. Visitors can enjoy shopping, dining, and scenic drives along Trail Ridge Road.

    3.Budweiser Event Center

    (located in Loveland, 8 miles south of Johnstown): A state-of-the-art sports and entertainment venue that hosts concerts, sporting events, and other events. Visitors can also tour the adjacent Budweiser Brewery.

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