Arnold, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Arnold, CA in one place.
Sunny. High near 76, with temperatures falling to around 73 in the afternoon. South southeast wind 2 to 7 mph, with gusts as high as 23 mph.
Local Weather Overview
This forecast page for Arnold, 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 25, 2026 11:43 PM PDT.
The active forecast window currently covers Sep 26 to Oct 2, 2026 for Arnold, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 26 to Oct 2, 2026
- Latest sync
- Sep 25, 2026 11:43 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Arnold
Wednesday looks like the warmest upcoming period in Arnold at 81 degrees F.
Sunday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Saturday at about 2 to 7 mph SSE.
The forecast from Sep 26 through Oct 2 stays mostly dry.
Forecast Details
- Last updated
- Sep 25, 2026 11:43 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
Partly cloudy, with a low around 55. East southeast wind around 3 mph.
Partly sunny, with a high near 70. South southwest wind around 6 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 49. North northeast wind around 3 mph.
Sunny, with a high near 71.
Clear, with a low around 54.
Sunny, with a high near 78.
Clear, with a low around 55.
Sunny, with a high near 81.
Clear, with a low around 56.
Sunny, with a high near 80.
Mostly clear, with a low around 55.
Sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Sep 26
|
Sunny
|
76°F |
2 to 7 mph
SSE
|
|
Saturday Night
Sep 26
|
Partly Cloudy
|
55°F |
3 mph
ESE
|
|
Sunday
Sep 27
|
Partly Sunny
|
70°F |
6 mph
SSW
|
|
Sunday Night
Sep 27
|
Partly Cloudy
|
49°F |
3 mph
NNE
|
|
Monday
Sep 28
|
Sunny
|
71°F |
2 to 6 mph
NW
|
|
Monday Night
Sep 28
|
Clear
|
54°F |
7 mph
NNE
|
|
Tuesday
Sep 29
|
Sunny
|
78°F |
2 to 7 mph
WNW
|
|
Tuesday Night
Sep 29
|
Clear
|
55°F |
6 mph
NNE
|
|
Wednesday
Sep 30
|
Sunny
|
81°F |
2 to 7 mph
SW
|
|
Wednesday Night
Sep 30
|
Clear
|
56°F |
5 mph
ENE
|
|
Thursday
Oct 1
|
Sunny
|
80°F |
6 mph
S
|
|
Thursday Night
Oct 1
|
Mostly Clear
|
55°F |
5 mph
ENE
|
|
Friday
Oct 2
|
Sunny
|
79°F |
5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arnold.