Our Proprietary 10-Day Forecast

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Current warnings over Newcastle, Wyoming
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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 Newcastle, Wyoming 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 Newcastle, Wyoming 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 Weston County, WY

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 Newcastle, Wyoming

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 Newcastle, WY 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 Newcastle, WY

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 Newcastle, WY, 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 Newcastle, Wyoming

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 Weston County, Wyoming

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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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.
 
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Climate Summary
(made with AI, use with caution)
Newcastle, Wyoming Climate Summary

General Climate

Newcastle, Wyoming experiences a semi-arid climate, characterized by hot summers and cold winters. The city receives an average of 12.5 inches of precipitation annually, with most of it falling during the spring and summer months.

Temperature

    •   Average Annual Temperature: 46.4°F (8.0°C)
    •   Average Summer Temperature (June     •   August): 72.1°F (22.3°C)
    •   Average Winter Temperature (December     •   February): 23.8°F (-4.6°C)
    •   Record High Temperature: 106°F (41.1°C)
    •   Record Low Temperature: -47°F (-43.9°C)

Precipitation

    •   Average Annual Precipitation: 12.5 inches (31.8 centimeters)
    •   Average Snowfall: 37.9 inches (96.3 centimeters)
    •   Wettest Month: May (2.2 inches / 5.6 centimeters)
    •   Driest Month: February (0.4 inches / 1.0 centimeters)

Humidity

    •   Average Annual Humidity: 58%
    •   Highest Humidity: July (67%)
    •   Lowest Humidity: February (45%)

Wind

    •   Average Wind Speed: 10.1 mph (16.3 km/h)
    •   Prevailing Wind Direction: West

Sunshine

    •   Average Annual Sunshine: 3,000 hours
    •   Sunniest Month: July (350 hours)
    •   Cloudiest Month: December (180 hours)

Climate Summary

Newcastle, Wyoming has a semi-arid climate with hot summers and cold winters. The city receives an average of 12.5 inches of precipitation annually, with most of it falling during the spring and summer months. The average annual temperature is 46.4°F (8.0°C), with average summer temperatures reaching 72.1°F (22.3°C) and average winter temperatures dropping to 23.8°F (-4.6°C). Newcastle experiences an average of 37.9 inches (96.3 centimeters) of snowfall annually. The city has an average annual humidity of 58%, with the highest humidity occurring in July (67%) and the lowest humidity occurring in February (45%). The average wind speed is 10.1 mph (16.3 km/h), with the prevailing wind direction being west. Newcastle receives an average of 3,000 hours of sunshine annually, with the sunniest month being July (350 hours) and the cloudiest month being December (180 hours).

Facts & Historical Information
(made with AI, use with caution)
Newcastle, Wyoming, boasts a rich natural history and scientific legacy:

  • Dinosaur Discovery:

    The area around Newcastle is renowned for its abundance of dinosaur fossils. In 1995, the Newcastle Dinosaur Center opened, showcasing the remains of a Triceratops, Edmontosaurus, and other prehistoric creatures.

  • Paleontological Research:

    Newcastle has been a hub for paleontological research, led by institutions like the University of Wyoming and the Black Hills Institute of Geological Research. These studies have contributed significantly to our understanding of ancient ecosystems and evolutionary processes.

  • John Wesley Powell:

    In 1870, explorer John Wesley Powell led a scientific expedition down the Green and Colorado Rivers. He stopped in Newcastle and conducted geological surveys, noting the area's unique rock formations and fossil-rich deposits.

  • Black Hills National Forest:

    Newcastle lies on the edge of the Black Hills National Forest, known for its diverse flora and fauna. The forest provides habitat for numerous species, including elk, deer, and a variety of birdlife.

  • W.C. Knight:

    Newcastle was home to renowned paleontologist W.C. Knight, who made significant contributions to the field. Knight discovered and described numerous dinosaur species, including the Stegosaurus and the Diplodocus.

    • Tourist Attractions
    1.Keyhole State Park

    is a beautiful park located just 15 miles from Newcastle. The park is home to Keyhole Reservoir, a popular spot for fishing, boating, and swimming. There are also several hiking trails in the park, including the popular Keyhole Falls Trail.

    2.Black Hills National Forest

    is a vast forest that covers much of western South Dakota and eastern Wyoming. The forest is home to a variety of wildlife, including deer, elk, and bison. There are also several hiking trails and campgrounds in the forest.

    3.Mount Rushmore

    is a famous sculpture located in the Black Hills National Forest. The sculpture depicts the faces of four US presidents: George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. Mount Rushmore is a popular tourist destination, and there are several hiking trails and viewpoints in the area.

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