Diablo, CA Weather Forecast

Local 7-day forecast

48°
F

Mostly Cloudy

Track current conditions, temperature changes, wind, and the full daily outlook for Diablo, CA in one place.

Saturday, October 31, 2026
Wind: 2 mph S
Overnight

Mostly cloudy, with a low around 48. South wind around 2 mph.

Local 7-day forecast

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: Oct 31, 2026 5:22 AM PDT.

The active forecast window currently covers Oct 31 to Nov 6, 2026 for Diablo, CA.

Page Snapshot

Page focus
city weather
Forecast window
Oct 31 to Nov 6, 2026
Latest sync
Oct 31, 2026 5:22 AM PDT
Forecast office
MTR
Source
NOAA / NWS
Next High
63°F
Saturday
Next Low
48°F
Overnight
Rain Outlook
3
Periods mentioning precipitation
Windiest
2 to 6 mph
Saturday

Daily Outlook

Today
Oct 31
Mostly Cloudy
63 °F
/ 48°F
Wind 2 to 6 mph
Sun
Nov 1
Patchy Fog then Sunny
64 °F
/ 43°F
Wind 1 to 5 mph
Mon
Nov 2
Mostly Sunny
65 °F
/ 46°F
Wind 3 mph
Tue
Nov 3
Slight Chance Rain Showers then Slight Chance Light Rain
64 °F
/ 46°F
Wind 5 mph
Wed
Nov 4
Patchy Fog then Mostly Sunny
66 °F
/ 47°F
Wind 5 mph
Thu
Nov 5
Mostly Sunny
65 °F
/ 46°F
Wind 1 to 5 mph
Fri
Nov 6
Patchy Fog then Sunny
68 °F
Wind 5 mph

This Week in Diablo

Friday looks like the warmest upcoming period in Diablo at 68 degrees F.

Sunday Night is the coolest period ahead with temperatures near 43 degrees F.

The strongest winds are forecast for Saturday at about 2 to 6 mph SSW.

Precipitation is mentioned in 3 upcoming forecast periods.

Forecast Details

Last updated
Oct 31, 2026 5:22 AM PDT
Coverage
7 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 source

Extended Forecast

Saturday
Oct 31
63°F
Mostly Cloudy
2 to 6 mph SSW

Mostly cloudy. High near 63, with temperatures falling to around 61 in the afternoon. South southwest wind 2 to 6 mph.

Saturday Night
Oct 31
45°F
Chance Rain Showers
1 to 5 mph SW

A chance of rain showers between 10pm and 3am, then patchy fog and a slight chance of rain showers. Partly cloudy, with a low around 45. Southwest wind 1 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Sunday
Nov 1
64°F
Patchy Fog then Sunny
1 to 5 mph W

Patchy fog before 8am. Sunny, with a high near 64. West wind 1 to 5 mph.

Sunday Night
Nov 1
43°F
Mostly Clear
0 to 5 mph SW

Mostly clear, with a low around 43. Southwest wind 0 to 5 mph.

Monday
Nov 2
65°F
Mostly Sunny
3 mph ENE

Mostly sunny, with a high near 65.

Monday Night
Nov 2
46°F
Mostly Cloudy
0 to 3 mph S

Mostly cloudy, with a low around 46.

Tuesday
Nov 3
64°F
Slight Chance Rain Showers then Slight Chance Light Rain
5 mph SSW

A slight chance of rain showers between 10am and 4pm, then a slight chance of rain. Partly sunny, with a high near 64.

Tuesday Night
Nov 3
46°F
Slight Chance Light Rain
1 to 5 mph NW

A slight chance of rain before 2am, then patchy fog and a slight chance of rain. Mostly cloudy, with a low around 46.

Wednesday
Nov 4
66°F
Patchy Fog then Mostly Sunny
5 mph N

Patchy fog before 8am. Mostly sunny, with a high near 66.

Wednesday Night
Nov 4
47°F
Partly Cloudy
0 to 5 mph WSW

Partly cloudy, with a low around 47.

Thursday
Nov 5
65°F
Mostly Sunny
1 to 5 mph W

Mostly sunny, with a high near 65.

Thursday Night
Nov 5
46°F
Partly Cloudy then Patchy Fog
1 to 5 mph WSW

Patchy fog after 5am. Partly cloudy, with a low around 46.

Friday
Nov 6
68°F
Patchy Fog then Sunny
5 mph WNW

Patchy fog before 7am. Sunny, with a high near 68.

Detailed Forecast

Period Conditions Temp Wind
Overnight
Oct 31
Mostly Cloudy
48°F
2 mph
S
Saturday
Oct 31
Mostly Cloudy
63°F
2 to 6 mph
SSW
Saturday Night
Oct 31
Chance Rain Showers
45°F
1 to 5 mph
SW
Sunday
Nov 1
Patchy Fog then Sunny
64°F
1 to 5 mph
W
Sunday Night
Nov 1
Mostly Clear
43°F
0 to 5 mph
SW
Monday
Nov 2
Mostly Sunny
65°F
3 mph
ENE
Monday Night
Nov 2
Mostly Cloudy
46°F
0 to 3 mph
S
Tuesday
Nov 3
Slight Chance Rain Showers then Slight Chance Light Rain
64°F
5 mph
SSW
Tuesday Night
Nov 3
Slight Chance Light Rain
46°F
1 to 5 mph
NW
Wednesday
Nov 4
Patchy Fog then Mostly Sunny
66°F
5 mph
N
Wednesday Night
Nov 4
Partly Cloudy
47°F
0 to 5 mph
WSW
Thursday
Nov 5
Mostly Sunny
65°F
1 to 5 mph
W
Thursday Night
Nov 5
Partly Cloudy then Patchy Fog
46°F
1 to 5 mph
WSW
Friday
Nov 6
Patchy Fog then Sunny
68°F
5 mph
WNW
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.