Foster, WA Weather Forecast
Local 7-day forecast
Slight Chance Light Rain then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Foster, WA in one place.
A slight chance of rain before 11am. Partly sunny, with a high near 66. North wind 6 to 10 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Foster, WA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 15, 2026 12:55 PM PDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Foster, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 12:55 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Foster
Thursday looks like the warmest upcoming period in Foster at 74 degrees F.
Tonight is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Wednesday at about 7 to 13 mph NNE.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 12:55 PM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KATX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 52. North northeast wind 7 to 12 mph.
Sunny, with a high near 73. North northeast wind 7 to 13 mph.
Mostly clear, with a low around 54. North northeast wind 5 to 12 mph.
Sunny, with a high near 74. North wind 3 to 7 mph.
Mostly clear, with a low around 54.
Sunny, with a high near 73.
Partly cloudy, with a low around 54.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 54.
Sunny, with a high near 72.
Partly cloudy, with a low around 54.
A chance of rain after 11am. Partly sunny, with a high near 70.
A chance of rain. Mostly cloudy, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Slight Chance Light Rain then Partly Sunny
|
66°F |
6 to 10 mph
N
|
|
Tonight
Sep 15
|
Mostly Clear
|
52°F |
7 to 12 mph
NNE
|
|
Wednesday
Sep 16
|
Sunny
|
73°F |
7 to 13 mph
NNE
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
54°F |
5 to 12 mph
NNE
|
|
Thursday
Sep 17
|
Sunny
|
74°F |
3 to 7 mph
N
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
54°F |
0 to 6 mph
W
|
|
Friday
Sep 18
|
Sunny
|
73°F |
3 to 7 mph
SW
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
54°F |
3 mph
WSW
|
|
Saturday
Sep 19
|
Mostly Sunny
|
73°F |
1 to 5 mph
NNW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
54°F |
3 mph
N
|
|
Sunday
Sep 20
|
Sunny
|
72°F |
5 mph
N
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
54°F |
5 mph
NNE
|
|
Monday
Sep 21
|
Chance Light Rain
|
70°F |
3 to 7 mph
SSW
|
|
Monday Night
Sep 21
|
Chance Light Rain
|
53°F |
3 to 7 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Foster.