Armstrong, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Armstrong, CA in one place.
Sunny, with a high near 89. West southwest wind 2 to 7 mph.
Local Weather Overview
This forecast page for Armstrong, 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 5:47 PM PDT.
The active forecast window currently covers Sep 15 to Sep 20, 2026 for Armstrong, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 5:47 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Armstrong
Saturday looks like the warmest upcoming period in Armstrong at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Wednesday at about 2 to 10 mph WSW.
The forecast from Sep 15 through Sep 20 stays mostly dry.
Forecast Details
- Last updated
- Sep 14, 2026 5:47 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- Radar station
- KDAX
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 56. West northwest wind 2 to 7 mph.
Sunny, with a high near 84. West southwest wind 2 to 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 55.
Sunny, with a high near 83.
Clear, with a low around 56.
Sunny, with a high near 88.
Clear, with a low around 57.
Sunny, with a high near 90.
Mostly clear, with a low around 57.
Sunny, with a high near 89.
Mostly clear, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Sunny
|
89°F |
2 to 7 mph
WSW
|
|
Tuesday Night
Sep 15
|
Mostly Clear
|
56°F |
2 to 7 mph
WNW
|
|
Wednesday
Sep 16
|
Sunny
|
84°F |
2 to 10 mph
WSW
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
55°F |
2 to 10 mph
WSW
|
|
Thursday
Sep 17
|
Sunny
|
83°F |
2 to 6 mph
W
|
|
Thursday Night
Sep 17
|
Clear
|
56°F |
2 to 7 mph
WNW
|
|
Friday
Sep 18
|
Sunny
|
88°F |
2 to 7 mph
WNW
|
|
Friday Night
Sep 18
|
Clear
|
57°F |
2 to 7 mph
W
|
|
Saturday
Sep 19
|
Sunny
|
90°F |
2 to 7 mph
WNW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
57°F |
2 to 7 mph
WNW
|
|
Sunday
Sep 20
|
Sunny
|
89°F |
2 to 7 mph
WNW
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
57°F |
2 to 7 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Armstrong.