Foster, CA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Foster, CA in one place.
Mostly sunny, with a high near 85. South wind 5 to 10 mph.
Local Weather Overview
This forecast page for Foster, CA 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 14, 2026 6:03 PM PDT.
The active forecast window currently covers Sep 15 to Sep 20, 2026 for Foster, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 6:03 PM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Foster
Saturday looks like the warmest upcoming period in Foster at 86 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 10 mph S.
The forecast from Sep 15 through Sep 20 stays mostly dry.
Forecast Details
- Last updated
- Sep 14, 2026 6:03 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KNKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 60. Southeast wind 0 to 5 mph.
Sunny, with a high near 84. South wind 0 to 10 mph.
Mostly clear, with a low around 59.
Sunny, with a high near 85.
Mostly clear, with a low around 59.
Sunny, with a high near 85.
Mostly clear, with a low around 59.
Sunny, with a high near 86.
Mostly clear, with a low around 60.
Sunny, with a high near 85.
Partly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Mostly Sunny
|
85°F |
5 to 10 mph
S
|
|
Tuesday Night
Sep 15
|
Partly Cloudy
|
60°F |
0 to 5 mph
SE
|
|
Wednesday
Sep 16
|
Sunny
|
84°F |
0 to 10 mph
S
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
59°F |
0 to 5 mph
NW
|
|
Thursday
Sep 17
|
Sunny
|
85°F |
0 to 10 mph
NW
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
59°F |
0 to 10 mph
NW
|
|
Friday
Sep 18
|
Sunny
|
85°F |
0 to 10 mph
N
|
|
Friday Night
Sep 18
|
Mostly Clear
|
59°F |
0 to 10 mph
N
|
|
Saturday
Sep 19
|
Sunny
|
86°F |
0 to 10 mph
NE
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
60°F |
0 to 10 mph
SW
|
|
Sunday
Sep 20
|
Sunny
|
85°F |
0 to 10 mph
SE
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
60°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Foster.