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Current warnings over Hartley, Iowa
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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 Hartley, Iowa 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 Hartley, Iowa 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 O

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 Hartley, Iowa

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 Hartley, IA 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 Hartley, IA

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 Hartley, IA, 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 Hartley, Iowa

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 O

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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  • 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)
Hartley, Iowa Climate Summary

Temperature

    •   Average annual temperature: 48.1°F (9.0°C)
    •   Average summer temperature: 72.6°F (22.6°C)
    •   Average winter temperature: 23.6°F (-4.7°C)
    •   Record high temperature: 114°F (45.6°C)
    •   Record low temperature: -39°F (-39.4°C)

Precipitation

    •   Average annual precipitation: 29.9 inches (76.0 cm)
    •   Average snowfall: 33.5 inches (85.1 cm)
    •   Wettest month: June (4.5 inches)
    •   Driest month: February (1.4 inches)

Climate Classification

    •   Hartley, Iowa has a humid continental climate (Köppen climate classification Dfb).

Additional Information

    •   Hartley, Iowa is located in USDA Hardiness Zone 4b.
    •   The growing season in Hartley, Iowa lasts for about 150 days, from mid-May to late September.
    •   The average frost-free period in Hartley, Iowa lasts for about 120 days, from mid-May to late September.
    •   The prevailing wind direction in Hartley, Iowa is from the northwest.
    •   The average wind speed in Hartley, Iowa is 10 mph (16 km/h).

Climate Variability and Change

    •   The climate of Hartley, Iowa is changing. The average annual temperature has increased by about 1°F (0.6°C) since the late 19th century. The average annual precipitation has also increased by about 5 inches (13 cm) since the late 19th century.
    •   The climate of Hartley, Iowa is expected to continue to change in the future. The average annual temperature is projected to increase by another 2-4°F (1.1-2.2°C) by the end of the century. The average annual precipitation is also projected to increase by another 1-2 inches (2.5-5.1 cm) by the end of the century.
    •   These changes in climate are likely to have a number of impacts on Hartley, Iowa, including:
    •   More extreme weather events, such as heat waves, droughts, and floods
    •   Changes in the growing season
    •   Changes in the distribution of plant and animal species
    •   Increased risk of flooding and other water-related problems

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

    •   Hartley is located in the Loess Hills National Scenic Byway, a unique geological formation with towering bluffs and fertile valleys.

    •   The area boasts a diverse flora and fauna, including wildflowers, birds, and mammals.

    •   The nearby Big Sioux River provides habitat for fish, waterfowl, and other aquatic species.

Science

    •   Hartley is home to the Hartley Research Center, a cutting-edge agricultural research facility.

    •   The center focuses on developing sustainable farming practices and improving crop yields.

    •   Its scientists have made significant contributions to the field of agriculture.

Personalities

  • George W. Carver:

    The renowned scientist and inventor spent his early childhood in Hartley.

  • Mary Elizabeth Mahon:

    A pioneering physician and suffragette, she established Hartley's first hospital.

  • George N. Cram:

    A cartographer and publisher, he created the iconic Cram's Atlas of the World.

    • Tourist Attractions
    1.Hartley City Park

    is a 10-acre park with a playground, picnic shelter, and walking trail.

    2.Hartley Heritage Museum

    is a local history museum with exhibits on the town's history, including its role in the Underground Railroad.

    3.Iowa Great Lakes

    is a chain of lakes located just a few miles from Hartley. The lakes offer a variety of recreational opportunities, including swimming, boating, and fishing.

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    Sioux City, IAMankato, MN
    Mason City, IAFort Dodge, IA
    Brookings, SDAlbert Lea, MN
    Yankton, SDMarshall, MN
    North Mankato, MNNew Ulm, MN
    South Sioux City, NE