As of 20:55 PDT

Weather in Diablo, CA

54°Current weather

Diablo, Monday, 19 October, 20:55

Overcast. Feels like 53°. High 68°, low 53°.

Pressure29.88 inHg
Wind8.1 mph SW
Humidity71%
Visibility6.2 mi
Dew point45°

Monthly outlook for Diablo, CA: average high 71.2°, average low 54.4°. That is 0.1° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 26 October (82°), the coolest 20 October (49.3°).

71.2°/54.4°
Average high / low
+0.1°
Above normal
1 / 2
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October73.1°72°+0.6°
29 October – 7 November68.1°68.5°-0.2°
8 November – 17 Novemberat normal64.3°—

October records over 66 years

104.2°2 October 2024All-time high
41.2°29 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Saranap (7 mi).

Tue, 2067° / 49°0Overcast
67 °Overcast

Diablo, Tuesday, 20 October

Overcast. High 67°, low 49°.

Pressure29.91 inHg
Wind3.2 mph N
Humidity48%
Visibility6.2 mi
Dew point44°
Wed, 2172° / 54°0Overcast
72 °Overcast

Diablo, Wednesday, 21 October

Overcast. High 72°, low 54°.

Pressure29.88 inHg
Wind1.8 mph SW
Humidity41%
Visibility6.2 mi
Dew point43°
Thu, 2268° / 55°0.04Light rain
68 °Light rain

Diablo, Thursday, 22 October

Light rain. High 68°, low 55°.

Pressure29.91 inHg
Wind3.9 mph W
Humidity56%
Visibility6.2 mi
Dew point50°
Fri, 2367° / 55°0Overcast
67 °Overcast

Diablo, Friday, 23 October

Overcast. High 67°, low 55°.

Pressure30.06 inHg
Wind5.4 mph N
Humidity69%
Visibility6.2 mi
Dew point51°
Sat, 2472° / 54°0Clear
72 °Clear

Diablo, Saturday, 24 October

Clear. High 72°, low 54°.

Pressure30.03 inHg
Wind5.7 mph N
Humidity29%
Visibility—
Dew point30°
Sun, 2577° / 55°0Overcast
77 °Overcast

Diablo, Sunday, 25 October

Overcast. High 77°, low 55°.

Pressure30.09 inHg
Wind4.6 mph NE
Humidity36%
Visibility—
Dew point39°
Mon, 2682° / 59°0Overcast
82 °Overcast

Diablo, Monday, 26 October

Overcast. High 82°, low 59°.

Pressure30.03 inHg
Wind3.1 mph NE
Humidity22%
Visibility—
Dew point31°
Tue, 2780° / 59°0Overcast
80 °Overcast

Diablo, Tuesday, 27 October

Overcast. High 80°, low 59°.

Pressure29.97 inHg
Wind3.7 mph NE
Humidity24%
Visibility—
Dew point32°
Wed, 2878° / 58°0Overcast
78 °Overcast

Diablo, Wednesday, 28 October

Overcast. High 78°, low 58°.

Pressure29.94 inHg
Wind5.1 mph W
Humidity23%
Visibility—
Dew point31°
Thu, 2973° / 54°0Partly cloudy
73 °Partly cloudy

Diablo, Thursday, 29 October

Partly cloudy. High 73°, low 54°.

Pressure29.91 inHg
Wind5.9 mph SW
Humidity37%
Visibility—
Dew point38°
Fri, 3065° / 52°0Overcast
65 °Overcast

Diablo, Friday, 30 October

Overcast. High 65°, low 52°.

Pressure29.91 inHg
Wind8.5 mph W
Humidity59%
Visibility—
Dew point46°
Sat, 3166° / 50°0Overcast
66 °Overcast

Diablo, Saturday, 31 October

Overcast. High 66°, low 50°.

Pressure30.06 inHg
Wind6.7 mph W
Humidity52%
Visibility—
Dew point42°
Sun, 0170° / 51°0Overcast
70 °Overcast

Diablo, Sunday, 1 November

Overcast. High 70°, low 51°.

Pressure30.21 inHg
Wind2.7 mph SW
Humidity43%
Visibility—
Dew point38°
Mon, 0272° / 55°0Overcast
72 °Overcast

Diablo, Monday, 2 November

Overcast. High 72°, low 55°.

Pressure30.18 inHg
Wind3.5 mph W
Humidity42%
Visibility—
Dew point41°
Tue, 0363° / 56°0.15Light rain
63 °Light rain

Diablo, Tuesday, 3 November

Light rain. High 63°, low 56°.

Pressure30.06 inHg
Wind4.9 mph W
Humidity77%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0469° / 51°0.02Climate normal
69 °Climate normal

Diablo, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high69°
Average low51°
Average precipitation0.02 in
Chance of precipitation10%
Record high80° (1980)
Record low39° (1973)
Thu, 0568° / 50°0.06Climate normal
68 °Climate normal

Diablo, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high68°
Average low50°
Average precipitation0.06 in
Chance of precipitation15%
Record high84° (2020)
Record low43° (1996)
Fri, 0667° / 51°0.05Climate normal
67 °Climate normal

Diablo, Friday, 6 November

Climate normal for this date — 60-year average.

Average high67°
Average low51°
Average precipitation0.05 in
Chance of precipitation15%
Record high79° (1976)
Record low43° (1972)
Sat, 0767° / 50°0.06Climate normal
67 °Climate normal

Diablo, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high67°
Average low50°
Average precipitation0.06 in
Chance of precipitation17%
Record high79° (1991)
Record low40° (1971)
Sun, 0865° / 49°0.06Climate normal
65 °Climate normal

Diablo, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.06 in
Chance of precipitation18%
Record high79° (1978)
Record low42° (2011)
Mon, 0965° / 48°0.08Climate normal
65 °Climate normal

Diablo, Monday, 9 November

Climate normal for this date — 60-year average.

Average high65°
Average low48°
Average precipitation0.08 in
Chance of precipitation20%
Record high78° (1990)
Record low36° (2020)
Tue, 1065° / 49°0.12Climate normal
65 °Climate normal

Diablo, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.12 in
Chance of precipitation30%
Record high80° (2025)
Record low38° (2020)
Wed, 1164° / 49°0.09Climate normal
64 °Climate normal

Diablo, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.09 in
Chance of precipitation27%
Record high79° (2019)
Record low38° (2000)
Thu, 1265° / 48°0.07Climate normal
65 °Climate normal

Diablo, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high65°
Average low48°
Average precipitation0.07 in
Chance of precipitation17%
Record high78° (2019)
Record low38° (1985)
Fri, 1364° / 48°0.13Climate normal
64 °Climate normal

Diablo, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.13 in
Chance of precipitation30%
Record high80° (1995)
Record low34° (2000)
Sat, 1464° / 48°0.06Climate normal
64 °Climate normal

Diablo, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.06 in
Chance of precipitation25%
Record high79° (2008)
Record low37° (1994)
Sun, 1564° / 48°0.06Climate normal
64 °Climate normal

Diablo, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (2010)
Record low38° (2000)
Mon, 1664° / 49°0.08Climate normal
64 °Climate normal

Diablo, Monday, 16 November

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.08 in
Chance of precipitation25%
Record high75° (2019)
Record low39° (1964)
Tue, 1763° / 48°0.11Climate normal
63 °Climate normal

Diablo, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high63°
Average low48°
Average precipitation0.11 in
Chance of precipitation25%
Record high75° (1989)
Record low35° (1964)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Diablo, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Diablo, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.