As of 17:00 PDT

Weather in Diablo, WA

43°

Diablo, Friday, 30 October, 17:00

Overcast. Feels like 41°. High 43°, low 38°.

Pressure29.91 inHg

Wind3.5 mph W

Humidity86%

Visibility4.0 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Diablo, WA: average high 47.1°, average low 39.3°. That is 0.5° below the climate normal for October. Precipitation is expected on 9 days (about 7.3 inches), against a normal of 10 days and 5.8 inches. The warmest day looks like 2 November (53.5°), the coolest 10 November (33.9°).

47.1°/39.3°

Average high / low

−0.5°

Below normal

9 / 10

Wet days / normal

7.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	48.8°	49°	-0.2°
9 November – 18 November	44.3°	45.6°	-0.7°
19 November – 28 November	at normal	41.6°	—

October records over 66 years

88°1 October 1987All-time high

3.2°28 October 1991All-time low

Sat, 3150° / 36°

50 °

Diablo, Saturday, 31 October

Partly cloudy. High 50°, low 36°.

Pressure30.06 inHg

Wind1.2 mph NW

Humidity78%

Visibility1.4 mi

Dew point33°

Sun, 0153° / 38°

53 °

Diablo, Sunday, 1 November

Clear. High 53°, low 38°.

Pressure30.06 inHg

Wind0.7 mph SE

Humidity62%

Visibility6.2 mi

Dew point32°

Mon, 0253° / 39°

53 °

Diablo, Monday, 2 November

Overcast. High 53°, low 39°.

Pressure30.24 inHg

Wind0.6 mph NW

Humidity64%

Visibility6.2 mi

Dew point28°

Tue, 0348° / 44°

0.02

48 °

Diablo, Tuesday, 3 November

Light rain. High 48°, low 44°.

Pressure30.12 inHg

Wind1.4 mph N

Humidity80%

Visibility6.2 mi

Dew point36°

Wed, 0453° / 40°

53 °

Diablo, Wednesday, 4 November

Overcast. High 53°, low 40°.

Pressure30.18 inHg

Wind1.7 mph S

Humidity88%

Visibility—

Dew point43°

Thu, 0552° / 41°

0.04

52 °

Diablo, Thursday, 5 November

Light rain. High 52°, low 41°.

Pressure29.94 inHg

Wind5.5 mph E

Humidity84%

Visibility—

Dew point42°

Fri, 0645° / 41°

0.59

45 °

Diablo, Friday, 6 November

Rain. High 45°, low 41°.

Pressure30.06 inHg

Wind4.9 mph SW

Humidity99%

Visibility—

Dew point42°

Sat, 0744° / 34°

0.77

44 °

Diablo, Saturday, 7 November

Rain. High 44°, low 34°.

Pressure30.30 inHg

Wind4.9 mph SE

Humidity82%

Visibility—

Dew point38°

Sun, 0846° / 44°

1.2

46 °

Diablo, Sunday, 8 November

Rain. High 46°, low 44°.

Pressure30.12 inHg

Wind5.4 mph SE

Humidity99%

Visibility—

Dew point44°

Mon, 0946° / 42°

1.42

46 °

Diablo, Monday, 9 November

Rain. High 46°, low 42°.

Pressure29.91 inHg

Wind5 mph SE

Humidity100%

Visibility—

Dew point45°

Tue, 1047° / 34°

47 °

Diablo, Tuesday, 10 November

Overcast. High 47°, low 34°.

Pressure29.88 inHg

Wind5 mph E

Humidity83%

Visibility—

Dew point38°

Wed, 1145° / 41°

0.76

45 °

Diablo, Wednesday, 11 November

Rain. High 45°, low 41°.

Pressure29.65 inHg

Wind3.8 mph SW

Humidity100%

Visibility—

Dew point43°

Thu, 1242° / 39°

0.8

42 °

Diablo, Thursday, 12 November

Snow. High 42°, low 39°.

Pressure30.09 inHg

Wind5 mph SW

Humidity100%

Visibility—

Dew point41°

Fri, 1343° / 38°

0.78

43 °

Diablo, Friday, 13 November

Snow. High 43°, low 38°.

Pressure29.80 inHg

Wind5.2 mph E

Humidity99%

Visibility—

Dew point42°

Sat, 1443° / 40°

0.61

43 °

Diablo, Saturday, 14 November

Snow. High 43°, low 40°.

Pressure29.71 inHg

Wind3.6 mph SE

Humidity100%

Visibility—

Dew point42°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 1545° / 33°

0.44

45 °

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°

0.36

44 °

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)

Tue, 1744° / 33°

0.4

44 °

Diablo, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high44°

Average low33°

Average precipitation0.4 in

Chance of precipitation68%

Record high61° (2008)

Record low2° (2000)

Wed, 1844° / 33°

0.31

44 °

Diablo, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high44°

Average low33°

Average precipitation0.31 in

Chance of precipitation65%

Record high60° (2018)

Record low15° (1985)

Thu, 1943° / 33°

0.38

43 °

Diablo, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high43°

Average low33°

Average precipitation0.38 in

Chance of precipitation70%

Record high61° (2005)

Record low10° (1977)

Fri, 2043° / 32°

0.38

43 °

Diablo, Friday, 20 November

Climate normal for this date — 60-year average.

Average high43°

Average low32°

Average precipitation0.38 in

Chance of precipitation60%

Record high60° (2005)

Record low5° (1977)

Sat, 2143° / 31°

0.36

43 °

Diablo, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.36 in

Chance of precipitation57%

Record high60° (2005)

Record low1° (1977)

Sun, 2241° / 30°

0.3

41 °

Diablo, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high41°

Average low30°

Average precipitation0.3 in

Chance of precipitation58%

Record high60° (2005)

Record low-4° (1970)

Mon, 2341° / 31°

0.54

41 °

Diablo, Monday, 23 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.54 in

Chance of precipitation75%

Record high57° (2005)

Record low-2° (1985)

Tue, 2442° / 31°

0.41

42 °

Diablo, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high42°

Average low31°

Average precipitation0.41 in

Chance of precipitation65%

Record high57° (2013)

Record low-2° (1993)

Wed, 2541° / 31°

0.39

41 °

Diablo, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.39 in

Chance of precipitation75%

Record high56° (2013)

Record low3° (1993)

Thu, 2640° / 30°

0.33

40 °

Diablo, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high40°

Average low30°

Average precipitation0.33 in

Chance of precipitation67%

Record high53° (2002)

Record low2° (1976)

Fri, 2741° / 31°

0.4

41 °

Diablo, Friday, 27 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.4 in

Chance of precipitation73%

Record high56° (2002)

Record low2° (1976)

Sat, 2841° / 30°

0.37

41 °

Diablo, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high41°

Average low30°

Average precipitation0.37 in

Chance of precipitation50%

Record high57° (2002)

Record low1° (1985)

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.