Our Proprietary 10-Day Forecast

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Current warnings over SeaTac, 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 SeaTac, 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 SeaTac, 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 King 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 SeaTac, 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 SeaTac, 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 SeaTac, 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 SeaTac, 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 SeaTac, 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 King 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.
 
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)
SeaTac, WA Climate Summary

Average Temperature

    •   January: 42°F (6°C)
    •   April: 49°F (9°C)
    •   July: 66°F (19°C)
    •   October: 53°F (12°C)

Average Precipitation

    •   January: 4.8 inches (12.2 cm)
    •   April: 2.1 inches (5.3 cm)
    •   July: 0.7 inches (1.8 cm)
    •   October: 3.0 inches (7.6 cm)

Average Snowfall

    •   January: 0.4 inches (1.0 cm)
    •   April: 0.0 inches (0.0 cm)
    •   July: 0.0 inches (0.0 cm)
    •   October: 0.0 inches (0.0 cm)

Climate Type

    •   Marine West Coast Climate

Description

    •   SeaTac, WA has a marine west coast climate, which is characterized by mild, wet winters and cool, dry summers.
    •   The average annual temperature is 51°F (11°C).
    •   The average annual precipitation is 37.6 inches (95.5 cm).
    •   Snowfall is rare in SeaTac, with an average of only 0.4 inches (1.0 cm) per year.
    •   The climate in SeaTac is ideal for growing a variety of crops, including apples, cherries, and pears.
    •   The city is also home to a number of parks and recreation areas, which offer opportunities for hiking, biking, and fishing.

Overall, SeaTac, WA has a mild and pleasant climate that is ideal for both living and working.

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

    •   Seatac sits on the Duwamish River delta, a rich ecosystem once teeming with salmon and other wildlife.

    •   The area was originally inhabited by the Duwamish people, who relied on the river for sustenance.

    •   The Duwamish estuary was designated a National Wildlife Refuge in 1974, protecting its diverse birdlife and habitats.

Science

    •   The Boeing Field in Seatac is a major aerospace research and development hub.

    •   The Pacific Science Center, located nearby, is a renowned science museum with interactive exhibits on various scientific fields.

    •   The University of Washington Tacoma houses the Institute for Science and Math Education, which promotes STEM education.

Personalities

    •   Chief Seattle, the namesake of the city, was a prominent Native American leader who played a pivotal role in negotiating treaties with settlers.

    •   William Boeing, the founder of Boeing Company, established the airfield in Seatac that later became the international airport.

    •   Jimi Hendrix, the legendary guitarist, was born in Seattle and spent his formative years in Seatac.

Tourist Attractions
1.Museum of Flight:

Located just minutes from SeaTac Airport, this world-renowned museum houses a vast collection of aircraft and space artifacts, including the original Boeing 747 and the Concorde.

2.Kubota Garden:

This tranquil Japanese garden, located in South Seattle, offers stunning views of Mount Rainier and the Olympic Mountains. Visitors can stroll through the garden's paths, admire the traditional architecture, and enjoy a tea ceremony.

3.Boeing Factory Tour:

Take a guided tour of the Boeing Everett Factory, the largest building in the world by volume. Witness the assembly process of iconic aircraft such as the 737, 747, and 777.

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