Our Proprietary 10-Day Forecast

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Current warnings over Catalina, Arizona
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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 Catalina, Arizona 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 Catalina, Arizona 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 Pima County, AZ

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 Catalina, Arizona

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 Catalina, AZ 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 Catalina, AZ

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 Catalina, AZ, 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 Catalina, Arizona

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 Pima County, Arizona

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.
 
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.
 
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Climate Summary
(made with AI, use with caution)
Catalina, Arizona Climate Summary

Catalina, Arizona is located in the Sonoran Desert and experiences a hot desert climate with mild winters and hot summers. The average annual temperature is 72.6°F (22.6°C), with average highs in the summer reaching 100°F (38°C) and average lows in the winter dropping to 35°F (2°C).

Precipitation

Catalina receives an average of 12.2 inches (310 mm) of precipitation per year, with most of it falling during the summer monsoon season from July to September. During this time, thunderstorms can produce heavy rain and flash flooding.

Humidity

The relative humidity in Catalina is typically low, averaging around 30% during the day and 15% at night. However, during the summer monsoon season, humidity levels can rise significantly, making the air feel muggy and uncomfortable.

Wind

The prevailing wind direction in Catalina is from the west-southwest. Winds are typically light to moderate, averaging around 10 mph (16 km/h). However, strong winds can occur during thunderstorms and dust storms.

Sunshine

Catalina enjoys an average of 320 sunny days per year. The sunniest months are June and July, when the average daily sunshine hours reach 14. During the winter months, the average daily sunshine hours drop to around 8.

Climate Change

Climate change is expected to have a significant impact on Catalina's climate. Average temperatures are projected to rise by 2-4°F (1-2°C) by the end of the century, and the frequency and intensity of extreme weather events, such as heat waves, droughts, and floods, are expected to increase.

Overall

Catalina's climate is characterized by hot summers, mild winters, low humidity, and abundant sunshine. However, the area is also prone to extreme weather events, such as thunderstorms, dust storms, and floods. Climate change is expected to exacerbate these extreme weather events and make Catalina's climate even more challenging to live in.

Facts & Historical Information
(made with AI, use with caution)
Catalina, AZ: A Natural and Scientific Haven

  • Biosphere 2:

    Catalina is home to the world's largest closed ecological system, Biosphere 2, which has hosted experiments simulating Earth's environments and the effects of human activities.

  • Mount Lemmon SkyCenter:

    Located on Mount Lemmon, the SkyCenter boasts the largest publicly accessible telescope in Arizona, offering stunning views of the night sky.

  • Sabino Canyon:

    This scenic canyon is a haven for desert flora and fauna, including saguaro cacti, gila monsters, and black bears.

  • Dr. Emil Buehler:

    A renowned astronomer, Buehler established the Mount Lemmon Observatory in 1963, which has made significant contributions to the field of astronomy.

  • Dr. Jane Goodall:

    The famed primatologist has conducted extensive research on chimpanzees at the Arizona Sonoran Desert Museum, located in Catalina.

  • Tourist Attractions
    1.Catalina State Park

    is a 5,500-acre park located in the foothills of the Santa Catalina Mountains. The park offers a variety of activities, including hiking, biking, camping, and picnicking. There are also several scenic overlooks, including the Romero Pools Overlook, which offers stunning views of the Tucson Basin.

    2.Mount Lemmon SkyCenter

    is located on the summit of Mount Lemmon, which is the highest point in the Santa Catalina Mountains. The SkyCenter offers a variety of educational programs and exhibits on astronomy, as well as a number of telescopes for public use.

    3.Sabino Canyon

    is a popular hiking destination located just east of Tucson. The canyon is home to a variety of plants and animals, including saguaro cacti, ocotillo, and coyotes. There are several hiking trails in the canyon, ranging from easy to difficult.

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