Monthly outlook for Diablo, WA: average high 46°, average low 37°. That is 0.1° above the climate normal for November. Precipitation is expected on 16 days (about 8.0 inches), against a normal of 10 days and 5.9 inches. The warmest day looks like 7 November (52.7°), the coolest 15 November (25.9°).
46°/37°
Average high / low
+0.1°
Above normal
16 / 10
Wet days / normal
8.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
48.3°
47°
+0.7°
15 November – 24 November
42.1°
43°
-0.5°
25 November – 4 December
at normal
40.2°
—
November records over 66 years
70.5°2 November 1962All-time high
-4.4°22 November 1970All-time low
Fri, 0651° / 42°0.54
51 °
Diablo, Friday, 6 November
Rain. High 51°, low 42°.
Pressure30.06 inHg
Wind3.2 mph SW
Humidity96%
Visibility2.0 mi
Dew point40°
Sat, 0753° / 42°0.27
53 °
Diablo, Saturday, 7 November
Heavy rain. High 53°, low 42°.
Pressure29.97 inHg
Wind1.8 mph NW
Humidity86%
Visibility6.2 mi
Dew point39°
Sun, 0847° / 43°0.85
47 °
Diablo, Sunday, 8 November
Heavy rain. High 47°, low 43°.
Pressure30.12 inHg
Wind4 mph SW
Humidity96%
Visibility2.2 mi
Dew point40°
Mon, 0951° / 35°0.14
51 °
Diablo, Monday, 9 November
Light rain. High 51°, low 35°.
Pressure30.06 inHg
Wind0.6 mph NW
Humidity73%
Visibility1.9 mi
Dew point34°
Tue, 1048° / 45°1.2
48 °
Diablo, Tuesday, 10 November
Rain. High 48°, low 45°.
Pressure30.06 inHg
Wind5 mph S
Humidity93%
Visibility—
Dew point46°
Wed, 1151° / 41°0.36
51 °
Diablo, Wednesday, 11 November
Rain. High 51°, low 41°.
Pressure30.00 inHg
Wind4.6 mph E
Humidity88%
Visibility—
Dew point46°
Thu, 1244° / 39°0.39
44 °
Diablo, Thursday, 12 November
Rain. High 44°, low 39°.
Pressure29.94 inHg
Wind5 mph E
Humidity99%
Visibility—
Dew point44°
Fri, 1344° / 41°1.05
44 °
Diablo, Friday, 13 November
Rain. High 44°, low 41°.
Pressure29.77 inHg
Wind4.6 mph S
Humidity93%
Visibility—
Dew point42°
Sat, 1442° / 33°0.48
42 °
Diablo, Saturday, 14 November
Snow. High 42°, low 33°.
Pressure29.80 inHg
Wind4.6 mph SW
Humidity100%
Visibility—
Dew point42°
Sun, 1542° / 26°0.06
42 °
Diablo, Sunday, 15 November
Light snow. High 42°, low 26°.
Pressure30.06 inHg
Wind4.4 mph E
Humidity85%
Visibility—
Dew point33°
Mon, 1642° / 27°0.04
42 °
Diablo, Monday, 16 November
Snow. High 42°, low 27°.
Pressure29.97 inHg
Wind4.5 mph NE
Humidity89%
Visibility—
Dew point34°
Tue, 1741° / 28°0.04
41 °
Diablo, Tuesday, 17 November
Snow. High 41°, low 28°.
Pressure30.00 inHg
Wind4.3 mph E
Humidity92%
Visibility—
Dew point35°
Wed, 1841° / 29°0.44
41 °
Diablo, Wednesday, 18 November
Snow. High 41°, low 29°.
Pressure29.85 inHg
Wind4.3 mph E
Humidity91%
Visibility—
Dew point37°
Thu, 1942° / 37°1.02
42 °
Diablo, Thursday, 19 November
Snow. High 42°, low 37°.
Pressure29.91 inHg
Wind4.1 mph SW
Humidity98%
Visibility—
Dew point38°
Fri, 2044° / 42°1
44 °
Diablo, Friday, 20 November
Rain. High 44°, low 42°.
Pressure30.18 inHg
Wind4.3 mph SW
Humidity100%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.