Our Proprietary 10-Day Forecast

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Current warnings over Arnold, Minnesota
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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 Arnold, Minnesota 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 Arnold, Minnesota 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 St. Louis County, MN

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 Arnold, Minnesota

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 Arnold, MN 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 Arnold, MN

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 Arnold, MN, 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 Arnold, Minnesota

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 St. Louis County, Minnesota

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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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
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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.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Arnold, Minnesota Climate Summary

General Climate


    •   Humid continental climate
    •   Warm summers and cold winters
    •   Precipitation is evenly distributed throughout the year

Temperature


    •   Average annual temperature: 43.8°F (6.6°C)
    •   Average summer temperature (June-August): 68.1°F (20.1°C)
    •   Average winter temperature (December-February): 16.2°F (-8.8°C)
    •   Record high temperature: 104°F (40°C)
    •   Record low temperature: -41°F (-40.6°C)

Precipitation


    •   Average annual precipitation: 29.2 inches (742 mm)
    •   Average snowfall: 49.6 inches (126 cm)
    •   Most precipitation occurs in June and July
    •   Least precipitation occurs in January and February

Humidity


    •   Average relative humidity: 70%
    •   Highest humidity in summer months
    •   Lowest humidity in winter months

Wind


    •   Prevailing wind direction: West-northwest
    •   Average wind speed: 10.4 mph (16.7 km/h)

Sunshine


    •   Average annual sunshine: 2,396 hours
    •   Most sunshine in July
    •   Least sunshine in December

Growing Season


    •   Average frost-free period: 145 days
    •   Begins: May 10th
    •   Ends: September 22nd

Other Climate Features


    •   Occasional severe thunderstorms in summer
    •   Ice storms in winter
    •   Fog is common in spring and fall
    •   Tornadoes are rare but possible

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

    •   Arnold is located in the Mississippi River Valley, known for its fertile soil and abundant wildlife.

    •   The area was once home to vast forests, including oak, maple, and ash trees.

    •   The Mississippi River played a crucial role in shaping the local ecosystem, providing food and transportation for Native American tribes.

Science

    •   In 1965, the Arnold Magnetic Observatory was established to study the Earth's magnetic field.

    •   The observatory is one of the oldest and most comprehensive magnetic observatories in the world.

    •   Its data has been used to track changes in the Earth's magnetic field and to improve navigation systems.

Personalities

  • Charles Lindbergh:

    The famed aviator lived in Little Falls, near Arnold, as a child.

  • George Washington Carver:

    The renowned agricultural scientist and inventor spent time in Arnold during his early career.

  • Willard Libby:

    The Nobel Prize-winning chemist who developed the radiocarbon dating technique was born in Arnold.

    • Tourist Attractions
    1.Cuyuna Country State Recreation Area:

    A vast outdoor recreation area with miles of hiking, biking, and ATV trails, as well as lakes for fishing and swimming.

    2.Crosby-Ironton Historical Society Museum:

    A museum that showcases the history of the Crosby-Ironton area, including its mining and logging industries.

    3.Pinehurst Park:

    A park with a playground, picnic areas, and a walking trail along the Mississippi River.

    Nearby Cities:

    Duluth, MN
    Hermantown, MNSuperior, WI
    Proctor, MNEsko, MN
    Cloquet, MNCarlton, MN
    Two Harbors, MNForest Lake, MN
    Hibbing, MNBrainerd, MN
    East Bethel, MNGrand Rapids, MN
    North Branch, MNVirginia, MN
    Cambridge, MNOak Grove, MN
    Rice Lake, WIAshland, WI
    Baxter, MN