Unincorporated community in the state of Oregon, United States
Foster
Weather & Forecast
Foster is an unincorporated community partly within the city of Sweet Home in Linn County, Oregon. It is located on the western end of the Foster Reservoir. A post office named Foster serves ZIP code 97345, which serves areas beyond the Sweet Home city limits on both the north and south sides of Foster Lake: on the north side, the area extends along the Middle Santiam River to the west end of Green Peter Lake; on the south, the area extends for several miles along the South Santiam River and U.S. Route 20.Wikipedia
Temperatures vary across four distinct seasons. Most rain falls in winter. Spring and fall feel like real transition seasons. Noticeable daylight swing. Annual snowfall is between 5 and 15 inches.
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Where It Is
State Context
OregonU.S. stateOregon is a state in the Pacific Northwest region of the United States. It is a part of the Western United States, with the Columbia River delineating much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. The 42° north parallel delineates the southern boundary with California and Nevada. The western boundary is formed by the Pacific Ocean.Wikipedia
About the Region
Pacific NorthwestThe Pacific Northwest grouping covers Washington and Oregon, including coastal communities, the Puget Sound and Willamette Valley urban areas, the Cascades, and inland cities. Seattle and Portland represent only part of that geographic variety.
West of the Cascades, coastal and valley locations generally have milder, wetter winters than many inland locations. Inland cities such as Spokane, Bend, and West Richland have different patterns, including drier conditions and larger seasonal temperature swings. Use the local climate figures: coastal conditions do not describe every Washington or Oregon city.
Nearby Parks & Nature
Closest protected landscapes, reserves, and big park systems surfaced from the same nearby feeds used in compare.
Federal Park Sites
Local Nature & Reserves
Housing Costs & Income
Livability
Not a citywide average. Walkability varies by address.
44.41050, -122.67300 · Updated 2026-08-29
Walk Score · view mapped locationClimate Through the Year
Annual average of days with more than five hours of sunshine, not necessarily clear skies.
Comfort combines temperature band fit, humidity fit, seasonal swing, and penalties for long stretches of extreme heat or cold. Higher scores mean the yearly pattern stays closer to an easier day-to-day climate band.
Natural Hazard Risk
Local Next Steps
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