As of 16:57 PDT

Weather in Diablo, WA

55°Current weather

Diablo, Sunday, 18 October, 16:57

Overcast. Feels like 52°. High 55°, low 35°.

Pressure30.00 inHg
Wind1 mph W
Humidity56%
Visibility6.2 mi
Dew point39°

Monthly outlook for Diablo, WA: average high 53°, average low 37.7°. That is 0.2° below the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 9 days and 4.7 inches. The warmest day looks like 21 October (68.4°), the coolest 26 October (30.3°).

53°/37.7°
Average high / low
−0.2°
Below normal
4 / 9
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October53.8°55°-0.7°
28 October – 6 November51.5°49.7°+1°
7 November – 16 Novemberat normal46.3°—

October records over 66 years

88°1 October 1987All-time high
3.2°28 October 1991All-time low
Mon, 1965° / 42°0Overcast
65 °Overcast

Diablo, Monday, 19 October

Overcast. High 65°, low 42°.

Pressure29.94 inHg
Wind1.1 mph S
Humidity50%
Visibility4.1 mi
Dew point31°
Tue, 2066° / 41°0Clear
66 °Clear

Diablo, Tuesday, 20 October

Clear. High 66°, low 41°.

Pressure30.09 inHg
Wind2.5 mph N
Humidity46%
Visibility6.2 mi
Dew point33°
Wed, 2168° / 47°0Mostly clear
68 °Mostly clear

Diablo, Wednesday, 21 October

Mostly clear. High 68°, low 47°.

Pressure29.94 inHg
Wind0.6 mph SW
Humidity42%
Visibility6.2 mi
Dew point36°
Thu, 2254° / 44°0.05Light rain
54 °Light rain

Diablo, Thursday, 22 October

Light rain. High 54°, low 44°.

Pressure29.88 inHg
Wind4.5 mph SW
Humidity60%
Visibility6.2 mi
Dew point35°
Fri, 2347° / 38°0.09Light rain
47 °Light rain

Diablo, Friday, 23 October

Light rain. High 47°, low 38°.

Pressure30.24 inHg
Wind4.8 mph SW
Humidity91%
Visibility—
Dew point40°
Sat, 2449° / 38°1.07Heavy rain
49 °Heavy rain

Diablo, Saturday, 24 October

Heavy rain. High 49°, low 38°.

Pressure30.03 inHg
Wind3.9 mph S
Humidity49%
Visibility—
Dew point29°
Sun, 2544° / 41°0.14Light rain
44 °Light rain

Diablo, Sunday, 25 October

Light rain. High 44°, low 41°.

Pressure30.21 inHg
Wind3.5 mph NE
Humidity100%
Visibility—
Dew point43°
Mon, 2645° / 30°0Overcast
45 °Overcast

Diablo, Monday, 26 October

Overcast. High 45°, low 30°.

Pressure30.21 inHg
Wind4.5 mph NE
Humidity89%
Visibility—
Dew point37°
Tue, 2745° / 30°0Clear
45 °Clear

Diablo, Tuesday, 27 October

Clear. High 45°, low 30°.

Pressure30.12 inHg
Wind4.6 mph NE
Humidity84%
Visibility—
Dew point35°
Wed, 2842° / 32°0Overcast
42 °Overcast

Diablo, Wednesday, 28 October

Overcast. High 42°, low 32°.

Pressure30.18 inHg
Wind2.9 mph NE
Humidity90%
Visibility—
Dew point38°
Thu, 2950° / 33°0Mostly clear
50 °Mostly clear

Diablo, Thursday, 29 October

Mostly clear. High 50°, low 33°.

Pressure30.15 inHg
Wind3.7 mph NE
Humidity75%
Visibility—
Dew point36°
Fri, 3053° / 36°0Clear
53 °Clear

Diablo, Friday, 30 October

Clear. High 53°, low 36°.

Pressure30.03 inHg
Wind3.5 mph E
Humidity74%
Visibility—
Dew point38°
Sat, 3154° / 38°0Partly cloudy
54 °Partly cloudy

Diablo, Saturday, 31 October

Partly cloudy. High 54°, low 38°.

Pressure30.12 inHg
Wind5 mph NE
Humidity76%
Visibility—
Dew point40°
Sun, 0155° / 37°0Mostly clear
55 °Mostly clear

Diablo, Sunday, 1 November

Mostly clear. High 55°, low 37°.

Pressure30.33 inHg
Wind4.1 mph NE
Humidity63%
Visibility—
Dew point37°
Mon, 0255° / 40°0Overcast
55 °Overcast

Diablo, Monday, 2 November

Overcast. High 55°, low 40°.

Pressure30.27 inHg
Wind6 mph NE
Humidity64%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0349° / 37°0.34Climate normal
49 °Climate normal

Diablo, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.34 in
Chance of precipitation62%
Record high67° (1962)
Record low6° (1973)
Wed, 0450° / 38°0.5Climate normal
50 °Climate normal

Diablo, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.5 in
Chance of precipitation62%
Record high66° (2010)
Record low15° (1960)
Thu, 0549° / 37°0.29Climate normal
49 °Climate normal

Diablo, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.29 in
Chance of precipitation60%
Record high65° (1987)
Record low9° (1973)
Fri, 0648° / 36°0.41Climate normal
48 °Climate normal

Diablo, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.41 in
Chance of precipitation63%
Record high60° (2012)
Record low15° (1968)
Sat, 0747° / 36°0.41Climate normal
47 °Climate normal

Diablo, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.41 in
Chance of precipitation68%
Record high64° (2024)
Record low19° (1993)
Sun, 0848° / 35°0.28Climate normal
48 °Climate normal

Diablo, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.28 in
Chance of precipitation58%
Record high66° (2019)
Record low6° (1966)
Mon, 0947° / 36°0.32Climate normal
47 °Climate normal

Diablo, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.32 in
Chance of precipitation58%
Record high64° (2025)
Record low2° (1986)
Tue, 1047° / 35°0.3Climate normal
47 °Climate normal

Diablo, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.3 in
Chance of precipitation53%
Record high62° (2016)
Record low-1° (1986)
Wed, 1147° / 34°0.36Climate normal
47 °Climate normal

Diablo, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.36 in
Chance of precipitation63%
Record high65° (2016)
Record low0° (1978)
Thu, 1246° / 35°0.42Climate normal
46 °Climate normal

Diablo, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.42 in
Chance of precipitation68%
Record high59° (1976)
Record low4° (1978)
Fri, 1346° / 34°0.44Climate normal
46 °Climate normal

Diablo, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.44 in
Chance of precipitation65%
Record high61° (2018)
Record low5° (1980)
Sat, 1446° / 34°0.39Climate normal
46 °Climate normal

Diablo, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.39 in
Chance of precipitation58%
Record high59° (1999)
Record low4° (1964)
Sun, 1545° / 33°0.44Climate normal
45 °Climate normal

Diablo, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.44 in
Chance of precipitation68%
Record high58° (1999)
Record low12° (1991)
Mon, 1644° / 35°0.36Climate normal
44 °Climate normal

Diablo, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°
Average low35°
Average precipitation0.36 in
Chance of precipitation75%
Record high60° (2008)
Record low10° (2000)

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, WA 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, WA 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.