Our Proprietary 10-Day Forecast

Loading Forecast...

Current warnings over Granby, Colorado
Add warnings to your site:
<div style='text-align:center'><a href='https://f5wx.com/warnings/'>
  <img src="https://www.f5wx.com/warnings/warningsF5.gif" alt='F5Weather Warnings Map' />
<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.

Do not use our graphics for protection of life or property. Delays in image processing are possible.

You are free to embed our warning graphics into your web site using the code above. We just ask that you keep a link and credit to F5Weather as a source for the graphics.


View more weather maps.

Zoom Out

Current radar over Granby, Colorado red dot
Add this radar to your site:
<div style='text-align:center'><a href='https://f5wx.com/radar/'>
<img src='https://www.f5wx.com/radar/live/radar_rockies.gif' alt='F5Weather Radar'>
<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.

View more weather maps.

Zoom Out

Current satellite over Granby, Colorado red dot
Add this satellite to your site:
<div style='text-align:center'><a href='https://f5wx.com/satellite/'>
<img src='https://www.f5wx.com/satellite/live/ir_rockies.gif' alt='F5Weather Satellite'>
<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.

View more weather maps.

Zoom Out

Current surface weather map around Grand 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.

View more weather maps.

Zoom Out

Temperatures right now near Granby, 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 Granby, CO please see our current conditions data on the left and right side of this page, or go to our current conditions page.

View more weather maps.

Zoom Out

Surface wind speed map over Granby, 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 Granby, CO, see the current conditions data on the left and right side of this page, or go to our current conditions page.

View more weather maps.

Zoom Out

Regional 24 hour rainfall expected near Granby, 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.

View more weather maps.

Zoom Out

Area snowfall accumulation expected around Grand 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.

View more weather maps.

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.

View more weather maps.

Atlantic Hurricane and Tropical Storm Tracking Map
Add this hurricane tracker to your site:
<div style='text-align:center'><a href='https://www.f5wx.com/models/hurricane/atlantic.png'>
<img src='https://www.f5wx.com/models/hurricane/atlantic.png' alt='F5Weather Atlantic Hurricane and Tropical Storm Tracking Map'>
<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.

View more weather maps.

F5Weather Maps splash

To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • 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.
 
F5Weather Maps

Climate Summary
(made with AI, use with caution)
Granby, Colorado Climate Summary

General Climate

    •   Granby, Colorado experiences a continental climate, characterized by warm, dry summers and cold, snowy winters.
    •   The town is located in a high-elevation valley, surrounded by the Rocky Mountains, which influences its climate.

Temperature

    •   Average annual temperature: 41.5°F (5.3°C)
    •   Average summer temperature (June-August): 65.7°F (18.7°C)
    •   Average winter temperature (December-February): 23.5°F (-4.7°C)
    •   Record high temperature: 97°F (36°C)
    •   Record low temperature: -41°F (-41°C)

Precipitation

    •   Average annual precipitation: 15.8 inches (401 mm)
    •   Average snowfall: 68.6 inches (174 cm)
    •   Most precipitation occurs during the spring and summer months, with May and June being the wettest months.
    •   Snowfall can occur from October to April, with the heaviest snowfall typically occurring in December and January.

Sunshine

    •   Granby receives an average of 300 sunny days per year.
    •   The sunniest months are June and July, with an average of 12 hours of sunshine per day.
    •   The cloudiest months are December and January, with an average of 4 hours of sunshine per day.

Wind

    •   Granby experiences moderate winds throughout the year, with an average wind speed of 6.7 mph (10.8 km/h).
    •   The windiest months are March and April, with average wind speeds of 8 mph (13 km/h).
    •   The calmest months are August and September, with average wind speeds of 5 mph (8 km/h).

Overall, Granby's climate is characterized by warm, dry summers and cold, snowy winters. The town receives a moderate amount of precipitation throughout the year, with most occurring during the spring and summer months. Granby also experiences plenty of sunshine, with an average of 300 sunny days per year.

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

    •   Granby is situated in the heart of the Rocky Mountains, at the confluence of the Fraser and Colorado Rivers.

    •   The area is renowned for its pristine alpine lakes, including Grand Lake, Shadow Mountain Lake, and Lake Granby.

    •   The surrounding forests are home to a diverse array of wildlife, including moose, elk, deer, and black bears.

Science

    •   Granby is home to the Rocky Mountain Biological Laboratory (RMBL), a world-renowned research institution that studies high-altitude ecosystems.

    •   RMBL has been conducting groundbreaking research in ecology, physiology, and behavior for over a century.

    •   The laboratory's work has contributed significantly to our understanding of the effects of climate change on mountain ecosystems.

Personalities

    •   Enos Mills, known as the \

Tourist Attractions
1.Rocky Mountain National Park:

This breathtaking national park is just a short drive from Granby and offers stunning mountain scenery, wildlife viewing, and hiking trails for all levels.

2.Grand Lake:

This beautiful lake is the largest natural body of water in Colorado and offers a variety of activities, including boating, fishing, and swimming.

3.Arapahoe Basin Ski Area:

This popular ski resort is located just outside of Granby and offers some of the best skiing and snowboarding in Colorado.

Nearby Cities:

Fraser, CO
Nederland, COKremmling, CO
Denver, CO
Colorado Springs, COAurora, CO
Fort Collins, COLakewood, CO
Thornton, COArvada, CO
Westminster, COBoulder, CO
Greeley, COLongmont, CO
Loveland, CO