Our Proprietary 10-Day Forecast

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Current warnings over Prosser, Washington
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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 Prosser, Washington 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 Prosser, Washington 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 Benton County, WA

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 Prosser, Washington

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 Prosser, WA 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 Prosser, WA

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 Prosser, WA, 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 Prosser, Washington

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 Benton County, Washington

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)
Prosser, Washington's climate is classified as warm-summer Mediterranean (Köppen Csb). The city experiences hot, dry summers with average high temperatures in July and August reaching 90°F (32°C). Winters are cool and wet, with average low temperatures in December and January dipping to 28°F (-2°C). Prosser receives an average of 8 inches (203 mm) of precipitation annually, with most of it falling between October and May.

Temperature

    •   Average annual temperature: 55°F (13°C)
    •   Average summer temperature (June-August): 75°F (24°C)
    •   Average winter temperature (December-February): 35°F (2°C)
    •   Record high temperature: 118°F (48°C)
    •   Record low temperature: -31°F (-35°C)

Precipitation

    •   Average annual precipitation: 8 inches (203 mm)
    •   Average number of rainy days: 50
    •   Average snowfall: 4 inches (10 cm)

Humidity

    •   Average annual relative humidity: 60%
    •   Average summer relative humidity (June-August): 45%
    •   Average winter relative humidity (December-February): 75%

Wind

    •   Average annual wind speed: 10 mph (16 km/h)
    •   Prevailing wind direction: Southwest

Sunshine

    •   Average annual sunshine: 2,800 hours
    •   Average daily sunshine: 8 hours

Climate Summary

Prosser, Washington's climate is characterized by hot, dry summers and cool, wet winters. The city receives an average of 8 inches of precipitation annually, with most of it falling between October and May. The average annual temperature is 55°F (13°C), with average summer temperatures reaching 75°F (24°C) and average winter temperatures dipping to 35°F (2°C). Prosser experiences an average of 2,800 hours of sunshine annually, with an average of 8 hours of sunshine per day.

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

    •   Prosser is located in the heart of the Yakima Valley, a fertile agricultural region renowned for its apples, pears, and wine grapes.

    •   The area is home to the Columbia National Wildlife Refuge, a vast wetland complex that supports a diverse array of bird species.

    •   Prosser is also known for its unique geological formations, including the Horse Heaven Hills and the Rattlesnake Hills, which offer spectacular views of the surrounding landscape.

Science

    •   Prosser is home to the Irrigated Agriculture Research and Extension Center, a leading research facility dedicated to improving agricultural practices in the arid West.

    •   The city is also the site of the Hanford Nuclear Reservation, a former nuclear weapons production facility that is now being decommissioned and cleaned up.

Personalities

    •   Prosser was named after William Prosser, a pioneer who established a ferry across the Yakima River in the 1850s.

    •   The city was a major stop on the Oregon Trail, and many famous explorers and settlers passed through, including Lewis and Clark, Marcus Whitman, and Kit Carson.

    •   Prosser is the birthplace of actor John Wayne, who grew up on a farm just outside the city.

Tourist Attractions
1.Prosser Wine Country:

Prosser is located in the heart of Washington's renowned wine country, with over 20 wineries within a short drive. Visitors can enjoy wine tastings, tours, and scenic drives through the vineyards.

2.Sacajawea State Park:

This park is situated on the banks of the Columbia River and offers stunning views of the river and surrounding mountains. Visitors can enjoy hiking, camping, fishing, and boating.

3.Walter Clore Wine Cellars:

This winery is known for its award-winning wines and its beautiful tasting room. Visitors can enjoy wine tastings, tours, and picnics on the winery's grounds.

Nearby Cities:

Grandview, WA
Mabton, WABenton City, WA
Sunnyside, WAWest Richland, WA
Granger, WARichland, WA
Irrigon, ORYakima, WA
Kennewick, WAPasco, WA
Wenatchee, WAWalla Walla, WA
Moses Lake, WAEllensburg, WA
Hermiston, ORPendleton, OR
The Dalles, OREast Wenatchee, WA
La Grande, OR