Foster, WA
Unincorporated community in King County, Washington
Foster is a small unincorporated community in King County, Washington. It is 0.4 miles S of Tukwila, the nearest town. Its ZIP code is 98168.
Foster at a glance
- State
- Washington
- County
- King County
- ZIP code
- 98168
- Nearest town
- Tukwila (0.4 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 47.4817, -122.2744
Weather in Foster now
Loading the National Weather Service forecast…
Foster weather by the hour
Foster weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Foster.
This week in Foster
Sunrise, sunset and moon in Foster
What is the weather usually like in Foster?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 78°F average high
- Decembercoldest month · 37°F average low
- 34.7 inprecipitation per year · 881 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Foster: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station RENTON MUNI AP, WA US (USW00094248), adjusted for the elevation of Foster.
Foster weather month by month
Sunrise and sunset in Foster through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:49 AM | 4:47 PM | 8 h 57 min |
| February | 7:12 AM | 5:34 PM | 10 h 22 min |
| March | 7:19 AM | 7:16 PM | 11 h 56 min |
| April | 6:17 AM | 8:00 PM | 13 h 42 min |
| May | 5:29 AM | 8:41 PM | 15 h 11 min |
| June | 5:09 AM | 9:10 PM | 16 h 0 min |
| July | 5:26 AM | 9:04 PM | 15 h 38 min |
| August | 6:04 AM | 8:22 PM | 14 h 18 min |
| September | 6:45 AM | 7:22 PM | 12 h 37 min |
| October | 7:26 AM | 6:22 PM | 10 h 56 min |
| November | 7:12 AM | 4:34 PM | 9 h 22 min |
| December | 7:48 AM | 4:20 PM | 8 h 31 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Foster?
Foster has a warm-summer mediterranean climate. The warmest month is August, with an average high of 78°F (25°C), and the coldest is December, with average lows of 37°F (3°C).
It gets about 34.7 inches (881 mm) of precipitation a year. The wettest month is November and the driest is July.
The best time to visit Foster is June to September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Foster
The closest live webcam is Burien: I-5 at MP 155.9: SR 599 Interchange, 0.1 miles NE of Foster.
Webcams: Windy.com. Distances in a straight line from Foster.
Do you know Foster? Tell us about it
Help other travelers: share what makes Foster special. We review every message before publishing it.
Map of Foster, WA
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Foster Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Towns near Foster
Other communities near Foster
Questions about Foster
Where is Foster, WA?
Foster is an unincorporated community in King County, Washington, 0.4 miles S of Tukwila.
What county is Foster in?
Foster is in King County, Washington.
What is the ZIP code of Foster, WA?
The ZIP code for Foster is 98168.
What is the nearest town to Foster?
Tukwila, 0.4 miles away.
Are there webcams near Foster?
Yes. The closest is Burien: I-5 at MP 155.9: SR 599 Interchange, 0.1 miles away.
What is the hottest month in Foster?
August, with an average high of 78°F (25°C).
What is the coldest month in Foster?
December, with an average low of 37°F (3°C).
How much does it rain in Foster?
About 34.7 inches (881 mm) a year; the wettest month is November.
Does it snow in Foster?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Foster?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Foster have?
Warm-summer mediterranean (Köppen Csb).
Last updated: