Our Proprietary 10-Day Forecast

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Current warnings over Rock Valley, 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 Rock Valley, 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 Rock Valley, 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 Sioux County, IA

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 Rock Valley, 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 Rock Valley, 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 Rock Valley, 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 Rock Valley, 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 Rock Valley, 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 Sioux County, Iowa

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)
Rock Valley, Iowa Climate Summary

General Climate

    •   Humid continental climate with warm, humid summers and cold, snowy winters.
    •   Located in the transition zone between the Great Plains and the Midwest.

Temperature

    •   Average Annual Temperature

48.2°F (9.0°C)

    •   Average Summer Temperature (June-August)

72.2°F (22.3°C)

    •   Average Winter Temperature (December-February)

20.4°F (-6.4°C)

    •   Record High Temperature

112°F (44.4°C)

    •   Record Low Temperature

-36°F (-37.8°C)

Precipitation

    •   Average Annual Precipitation

31.0 inches (78.7 cm)

    •   Average Snowfall

30.6 inches (77.7 cm)

    •   Wettest Month

May (4.2 inches / 10.7 cm)

    •   Driest Month

February (1.1 inches / 2.8 cm)

Wind

    •   Prevailing Wind Direction

West-northwest

    •   Average Wind Speed

11.8 mph (19.0 km/h)

Sunshine

    •   Average Annual Sunshine

2,594 hours

    •   Sunniest Month

July (312 hours)

    •   Cloudiest Month

December (156 hours)

Other Climate Features

    •   Tornado Risk

Moderate

    •   Hail Risk

High

    •   Drought Risk

Moderate

    •   Extreme Heat Risk

Moderate

    •   Extreme Cold Risk

High

Climate Trends

    •   Rising Temperatures

Over the past century, average temperatures in Rock Valley have increased by about 2.5°F (1.4°C).

    •   Increasing Precipitation

Annual precipitation has also increased slightly, with a trend towards more frequent and intense rainfall events.

    •   More Extreme Weather

The frequency and intensity of extreme weather events, such as tornadoes, hail, and heat waves, has increased in recent decades.

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

    •   Rock Valley is situated on the Rock River, which was once a major transportation route for Native Americans and fur traders.

    •   The area is home to a diverse ecosystem, including wetlands, prairies, and woodlands.

    •   Rock Valley is a popular destination for birdwatching, with over 200 species recorded in the area.

Science

    •   The Rock Valley Research and Demonstration Farm is a leading agricultural research facility.

    •   The farm has developed innovative farming practices that have improved crop yields and reduced environmental impact.

    •   Rock Valley is home to the Iowa Lakes Community College, which offers a variety of science and technology programs.

Personalities

    •   Rock Valley was the birthplace of George Gallup, the founder of the Gallup Poll.

    •   The town is also home to the George Gallup Museum, which showcases his life and work.

    •   Rock Valley is known for its strong community spirit and its commitment to education and innovation.

Tourist Attractions
1.Sioux Falls

(10 miles south of Rock Valley, IA): A stunning waterfall with a series of cascades and a pedestrian bridge offering panoramic views.

2.Falls Park

(Sioux Falls): A scenic park surrounding Sioux Falls, featuring walking trails, gardens, and the USS South Dakota Battleship Memorial.

3.Great Plains Zoo & Delbridge Museum of Natural History

(Sioux Falls): A family-friendly attraction with over 1,000 animals from around the world, as well as a natural history museum with exhibits on fossils, geology, and wildlife.

Nearby Cities:

Hull, IA
Sioux Center, IACanton, SD
Hawarden, IARock Rapids, IA
George, IAOrange City, IA
Alton, IASheldon, IA
Beresford, SDSioux Falls, SD
Sioux City, IAFort Dodge, IA
Norfolk, NEBrookings, SD
Mitchell, SDYankton, SD
Marshall, MNNew Ulm, MN
South Sioux City, NEWorthington, MN
Spencer, IA