Our Proprietary 10-Day Forecast

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Current warnings over Alton, Texas
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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 Alton, Texas 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 Alton, Texas 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 Hidalgo County, TX

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 Alton, Texas

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 Alton, TX 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 Alton, TX

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 Alton, TX, 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 Alton, Texas

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 Hidalgo County, Texas

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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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Location

Alton, Texas (26.38° N, 98.28° W)

Climate Zone

Humid subtropical climate (Köppen classification: Cfa)

Average Annual Temperature

68.5°F (20.3°C)

Average Annual Precipitation

35.4 inches (900 mm)

Average Annual Snowfall

0.2 inches (5 mm)

Temperature Extremes

    •   Record High: 111°F (44°C)
    •   Record Low: 10°F (-12°C)

Seasonal Climate

Spring (March-May)


    •   Average temperature: 64-78°F (18-26°C)
    •   Average precipitation: 8-10 inches (200-250 mm)

Summer (June-August)


    •   Average temperature: 80-95°F (27-35°C)
    •   Average precipitation: 6-8 inches (150-200 mm)

Fall (September-November)


    •   Average temperature: 68-80°F (20-27°C)
    •   Average precipitation: 6-8 inches (150-200 mm)

Winter (December-February)


    •   Average temperature: 48-64°F (9-18°C)
    •   Average precipitation: 5-7 inches (130-180 mm)

Other Climate Characteristics

    •   Humidity

High throughout the year, especially in summer.

    •   Wind

Prevailing winds from the south and southeast.

    •   Tornadoes

Moderate risk, with most occurring in spring and fall.

    •   Hurricanes

Occasional threat from hurricanes and tropical storms, particularly during the summer and fall.

    •   Droughts

Occasional, but not severe.

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

    •   Alton is located within the Gulf Coastal Plain, an area known for its rich fossil record.

    •   The town is situated near the confluence of the Nueces and Frio Rivers, creating a diverse ecosystem supporting numerous plant and animal species.

    •   The Alton Bird Sanctuary provides a haven for migratory birds, including the endangered whooping crane.

Science

    •   Alton was the site of a major archaeological excavation in the 1970s, revealing evidence of human habitation dating back 10,000 years.

    •   The town is home to the Alton Observatory, a research facility operated by the University of Texas at Brownsville.

    •   Alton is also a hub for paleontological research, with several important fossil sites located nearby.

Personalities

  • Sam Houston:

    The legendary Texas hero lived in Alton for a time and established a plantation there.

  • George Washington Brackenridge:

    A naturalist and explorer, Brackenridge visited Alton in the 1830s and documented its natural history.

  • Dr. John C. Duval:

    A prominent physician and historian, Duval played a key role in preserving Alton's history and promoting its scientific importance.

    • Tourist Attractions
    1.Rio Grande Valley Museum

    - This museum tells the story of the Rio Grande Valley, from its natural history to its human history. Visitors can learn about the region's Native American tribes, Spanish explorers, and Mexican settlers. The museum also has a large collection of art and artifacts from the region.

    2.Santa Ana National Wildlife Refuge

    - This wildlife refuge is home to a variety of wildlife, including birds, mammals, and reptiles. Visitors can hike, bike, or drive through the refuge to see the animals in their natural habitat. The refuge also has a visitor center with exhibits on the local wildlife.

    3.Bentsen-Rio Grande Valley State Park

    - This state park is located on the Rio Grande River and offers a variety of outdoor activities, including hiking, biking, fishing, and camping. Visitors can also swim in the river or relax on the beach. The park also has a visitor center with exhibits on the local history and wildlife.

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