Arnold, CA Weather Forecast
Local 7-day forecast
Patchy Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Arnold, CA in one place.
Patchy smoke between 7am and 3pm. Mostly sunny. High near 84, with temperatures falling to around 82 in the afternoon. South wind around 5 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: Aug 11, 2026 10:37 PM PDT.
The active forecast window currently covers Aug 12 to Aug 18, 2026 for Arnold, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 12 to Aug 18, 2026
- Latest sync
- Aug 11, 2026 10:37 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Arnold
Wednesday looks like the warmest upcoming period in Arnold at 84 degrees F.
Friday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Thursday at about 2 to 6 mph S.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 11, 2026 10:37 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
A slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 62. East wind around 3 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 11am, then a slight chance of rain between 11am and 5pm. Mostly sunny, with a high near 77. South wind 2 to 6 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 56. East southeast wind around 5 mph.
Sunny, with a high near 76.
Clear, with a low around 55.
Sunny, with a high near 77.
Mostly clear, with a low around 56.
Sunny, with a high near 79.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 78.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Aug 12
|
Patchy Smoke
|
84°F |
5 mph
S
|
|
Wednesday Night
Aug 12
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
62°F |
3 mph
E
|
|
Thursday
Aug 13
|
Slight Chance Showers And Thunderstorms then Slight Chance Light Rain
|
77°F |
2 to 6 mph
S
|
|
Thursday Night
Aug 13
|
Mostly Clear
|
56°F |
5 mph
ESE
|
|
Friday
Aug 14
|
Sunny
|
76°F |
5 mph
S
|
|
Friday Night
Aug 14
|
Clear
|
55°F |
5 mph
NE
|
|
Saturday
Aug 15
|
Sunny
|
77°F |
5 mph
SSW
|
|
Saturday Night
Aug 15
|
Mostly Clear
|
56°F |
5 mph
N
|
|
Sunday
Aug 16
|
Sunny
|
79°F |
5 mph
SW
|
|
Sunday Night
Aug 16
|
Partly Cloudy
|
57°F |
5 mph
N
|
|
Monday
Aug 17
|
Mostly Sunny
|
78°F |
5 mph
SW
|
|
Monday Night
Aug 17
|
Partly Cloudy
|
56°F |
3 mph
N
|
|
Tuesday
Aug 18
|
Mostly Sunny
|
77°F |
5 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arnold.