As of 11:19 PST

Weather in Diablo, WA

57°

Diablo, Wednesday, 11 November, 11:19

Overcast. Feels like 57°. High 59°, low 49°.

Pressure30.03 inHg

Wind0.7 mph NW

Humidity83%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Diablo, WA: average high 47.4°, average low 39.7°. That is 2.2° above the climate normal for November. Precipitation is expected on 9 days (about 8.0 inches), against a normal of 11 days and 6.2 inches. The warmest day looks like 12 November (60.3°), the coolest 21 November (28.7°).

47.4°/39.7°

Average high / low

+2.2°

Above normal

9 / 11

Wet days / normal

8.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 November – 20 November	49.3°	44.9°	+2.4°
21 November – 30 November	44.3°	41°	+1.9°
1 December – 10 December	at normal	39.1°	—

November records over 66 years

70.5°2 November 1962All-time high

-4.4°22 November 1970All-time low

Thu, 1260° / 44°

60 °

Diablo, Thursday, 12 November

Overcast. High 60°, low 44°.

Pressure29.77 inHg

Wind0.9 mph N

Humidity65%

Visibility6.2 mi

Dew point40°

Fri, 1360° / 43°

0.01

60 °

Diablo, Friday, 13 November

Light rain. High 60°, low 43°.

Pressure29.32 inHg

Wind2 mph N

Humidity63%

Visibility6.2 mi

Dew point39°

Sat, 1449° / 45°

0.11

49 °

Diablo, Saturday, 14 November

Light rain. High 49°, low 45°.

Pressure29.68 inHg

Wind1.8 mph SW

Humidity96%

Visibility6.2 mi

Dew point41°

Sun, 1546° / 45°

0.71

46 °

Diablo, Sunday, 15 November

Rain. High 46°, low 45°.

Pressure29.83 inHg

Wind1.5 mph SW

Humidity98%

Visibility—

Dew point45°

Mon, 1646° / 42°

0.13

46 °

Diablo, Monday, 16 November

Light rain. High 46°, low 42°.

Pressure29.97 inHg

Wind2.6 mph SW

Humidity96%

Visibility—

Dew point44°

Tue, 1744° / 32°

44 °

Diablo, Tuesday, 17 November

Overcast. High 44°, low 32°.

Pressure30.03 inHg

Wind4.8 mph E

Humidity78%

Visibility—

Dew point35°

Wed, 1843° / 34°

0.04

43 °

Diablo, Wednesday, 18 November

Snow. High 43°, low 34°.

Pressure29.74 inHg

Wind4.7 mph E

Humidity83%

Visibility—

Dew point35°

Thu, 1941° / 38°

0.32

41 °

Diablo, Thursday, 19 November

Snow. High 41°, low 38°.

Pressure29.94 inHg

Wind3 mph SW

Humidity97%

Visibility—

Dew point40°

Fri, 2044° / 33°

44 °

Diablo, Friday, 20 November

Overcast. High 44°, low 33°.

Pressure30.36 inHg

Wind3 mph NE

Humidity87%

Visibility—

Dew point37°

Sat, 2143° / 29°

43 °

Diablo, Saturday, 21 November

Partly cloudy. High 43°, low 29°.

Pressure30.30 inHg

Wind3.9 mph E

Humidity83%

Visibility—

Dew point33°

Sun, 2243° / 37°

43 °

Diablo, Sunday, 22 November

Light snow. High 43°, low 37°.

Pressure30.15 inHg

Wind4 mph E

Humidity82%

Visibility—

Dew point35°

Mon, 2343° / 37°

1.35

43 °

Diablo, Monday, 23 November

Snow. High 43°, low 37°.

Pressure30.03 inHg

Wind4.6 mph E

Humidity97%

Visibility—

Dew point41°

Tue, 2445° / 42°

1.88

45 °

Diablo, Tuesday, 24 November

Heavy rain. High 45°, low 42°.

Pressure29.97 inHg

Wind6.8 mph S

Humidity100%

Visibility—

Dew point44°

Wed, 2545° / 42°

2.12

45 °

Diablo, Wednesday, 25 November

Heavy rain. High 45°, low 42°.

Pressure30.03 inHg

Wind4.8 mph SE

Humidity99%

Visibility—

Dew point45°

Thu, 2647° / 43°

1.27

47 °

Diablo, Thursday, 26 November

Rain. High 47°, low 43°.

Pressure30.00 inHg

Wind3.3 mph S

Humidity100%

Visibility—

Dew point44°

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

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)

Sun, 2940° / 29°

0.31

40 °

Diablo, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high40°

Average low29°

Average precipitation0.31 in

Chance of precipitation58%

Record high53° (2002)

Record low-2° (1985)

Mon, 3040° / 31°

0.38

40 °

Diablo, Monday, 30 November

Climate normal for this date — 60-year average.

Average high40°

Average low31°

Average precipitation0.38 in

Chance of precipitation63%

Record high53° (2008)

Record low-3° (2014)

Tue, 0140° / 31°

0.38

40 °

Diablo, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high40°

Average low31°

Average precipitation0.38 in

Chance of precipitation60%

Record high53° (2008)

Record low-6° (1985)

Wed, 0240° / 30°

0.45

40 °

Diablo, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high40°

Average low30°

Average precipitation0.45 in

Chance of precipitation68%

Record high51° (2024)

Record low2° (2014)

Thu, 0340° / 29°

0.44

40 °

Diablo, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high40°

Average low29°

Average precipitation0.44 in

Chance of precipitation62%

Record high55° (2024)

Record low8° (2014)

Fri, 0439° / 28°

0.39

39 °

Diablo, Friday, 4 December

Climate normal for this date — 60-year average.

Average high39°

Average low28°

Average precipitation0.39 in

Chance of precipitation58%

Record high56° (2024)

Record low0° (1972)

Sat, 0539° / 28°

0.3

39 °

Diablo, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high39°

Average low28°

Average precipitation0.3 in

Chance of precipitation55%

Record high52° (2024)

Record low1° (2013)

Sun, 0639° / 29°

0.35

39 °

Diablo, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high39°

Average low29°

Average precipitation0.35 in

Chance of precipitation53%

Record high52° (2024)

Record low1° (2013)

Mon, 0738° / 29°

0.3

38 °

Diablo, Monday, 7 December

Climate normal for this date — 60-year average.

Average high38°

Average low29°

Average precipitation0.3 in

Chance of precipitation58%

Record high49° (2002)

Record low-7° (1972)

Tue, 0838° / 29°

0.38

38 °

Diablo, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high38°

Average low29°

Average precipitation0.38 in

Chance of precipitation58%

Record high52° (1962)

Record low-5° (1972)

Wed, 0938° / 29°

0.42

38 °

Diablo, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high38°

Average low29°

Average precipitation0.42 in

Chance of precipitation70%

Record high53° (1962)

Record low2° (2009)

Thu, 1040° / 30°

0.54

40 °

Diablo, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high40°

Average low30°

Average precipitation0.54 in

Chance of precipitation72%

Record high54° (2005)

Record low1° (1972)

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.