Diablo, CA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Diablo, CA in one place.
Rain before 11am, then showers and thunderstorms. Cloudy, with a high near 63. South wind 3 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Diablo, 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: Apr 20, 2026 6:54 AM PDT.
The active forecast window currently covers Apr 21 to Apr 26, 2026 for Diablo, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 21 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 6:54 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Diablo
Friday looks like the warmest upcoming period in Diablo at 72 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Tuesday at about 3 to 10 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 6:54 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KMUX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 8pm, then rain likely. Mostly cloudy, with a low around 47. Southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain before 5pm. Mostly sunny, with a high near 65. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 44.
Sunny, with a high near 70.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 72.
Partly cloudy, with a low around 48.
Mostly sunny, with a high near 70.
Partly cloudy, with a low around 49.
Mostly sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Apr 21
|
Showers And Thunderstorms
|
63°F |
3 to 10 mph
S
|
|
Tuesday Night
Apr 21
|
Showers And Thunderstorms Likely then Light Rain Likely
|
47°F |
5 to 10 mph
SW
|
|
Wednesday
Apr 22
|
Chance Light Rain
|
65°F |
5 to 8 mph
SW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
44°F |
2 to 8 mph
W
|
|
Thursday
Apr 23
|
Sunny
|
70°F |
2 to 8 mph
W
|
|
Thursday Night
Apr 23
|
Partly Cloudy
|
45°F |
3 to 8 mph
WSW
|
|
Friday
Apr 24
|
Mostly Sunny
|
72°F |
3 to 8 mph
WSW
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
48°F |
5 to 8 mph
WSW
|
|
Saturday
Apr 25
|
Mostly Sunny
|
70°F |
5 to 9 mph
WSW
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
49°F |
5 to 9 mph
WSW
|
|
Sunday
Apr 26
|
Mostly Sunny
|
68°F |
5 to 9 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Diablo.