Monthly outlook for Walnut Creek, CA: average high 65.3°, average low 51.3°. That is 0.2° below the climate normal for November. Precipitation is expected on 4 days (about 3.1 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 6 November (72.5°), the coolest 4 November (46.5°).
65.3°/51.3°
Average high / low
−0.2°
Below normal
4 / 3
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
3 November – 12 November
67.9°
66.6°
+0.7°
13 November – 22 November
60.9°
62.8°
-1°
23 November – 2 December
at normal
59.9°
—
November records over 66 years
85.1°1 November 1967All-time high
33.4°19 November 1964All-time low
Climate normals and records are computed from the nearest reference point — Contra Costa Centre (2 mi).
Wed, 0468° / 46°0
68 °
Walnut Creek, Wednesday, 4 November
Clear. High 68°, low 46°.
Pressure30.06 inHg
Wind5.5 mph NW
Humidity51%
Visibility6.2 mi
Dew point46°
Thu, 0571° / 48°0
71 °
Walnut Creek, Thursday, 5 November
Clear. High 71°, low 48°.
Pressure30.12 inHg
Wind2.9 mph N
Humidity45%
Visibility6.2 mi
Dew point47°
Fri, 0673° / 50°0
73 °
Walnut Creek, Friday, 6 November
Overcast. High 73°, low 50°.
Pressure30.15 inHg
Wind1.8 mph NE
Humidity43%
Visibility6.2 mi
Dew point45°
Sat, 0769° / 51°0
69 °
Walnut Creek, Saturday, 7 November
Overcast. High 69°, low 51°.
Pressure30.09 inHg
Wind4.2 mph NE
Humidity53%
Visibility4.8 mi
Dew point48°
Sun, 0871° / 52°0
71 °
Walnut Creek, Sunday, 8 November
Clear. High 71°, low 52°.
Pressure30.15 inHg
Wind3.7 mph NE
Humidity69%
Visibility—
Dew point52°
Mon, 0967° / 52°0
67 °
Walnut Creek, Monday, 9 November
Partly cloudy. High 67°, low 52°.
Pressure30.09 inHg
Wind5.3 mph SW
Humidity64%
Visibility—
Dew point50°
Tue, 1070° / 55°0
70 °
Walnut Creek, Tuesday, 10 November
Clear. High 70°, low 55°.
Pressure30.09 inHg
Wind4.7 mph W
Humidity51%
Visibility—
Dew point44°
Wed, 1168° / 56°0
68 °
Walnut Creek, Wednesday, 11 November
Overcast. High 68°, low 56°.
Pressure30.03 inHg
Wind6.6 mph SW
Humidity43%
Visibility—
Dew point41°
Thu, 1260° / 54°0.69
60 °
Walnut Creek, Thursday, 12 November
Heavy rain. High 60°, low 54°.
Pressure29.88 inHg
Wind8.1 mph S
Humidity86%
Visibility—
Dew point54°
Fri, 1363° / 51°0
63 °
Walnut Creek, Friday, 13 November
Partly cloudy. High 63°, low 51°.
Pressure30.00 inHg
Wind8.9 mph SE
Humidity64%
Visibility—
Dew point45°
Sat, 1458° / 53°1.9
58 °
Walnut Creek, Saturday, 14 November
Heavy rain. High 58°, low 53°.
Pressure29.74 inHg
Wind16.8 mph S
Humidity87%
Visibility—
Dew point51°
Sun, 1559° / 50°0.19
59 °
Walnut Creek, Sunday, 15 November
Light rain. High 59°, low 50°.
Pressure30.09 inHg
Wind9.4 mph SW
Humidity66%
Visibility—
Dew point44°
Mon, 1660° / 49°0
60 °
Walnut Creek, Monday, 16 November
Overcast. High 60°, low 49°.
Pressure30.30 inHg
Wind4.4 mph NW
Humidity64%
Visibility—
Dew point43°
Tue, 1763° / 51°0
63 °
Walnut Creek, Tuesday, 17 November
Partly cloudy. High 63°, low 51°.
Pressure30.30 inHg
Wind3.4 mph NE
Humidity47%
Visibility—
Dew point37°
Wed, 1863° / 52°0
63 °
Walnut Creek, Wednesday, 18 November
Overcast. High 63°, low 52°.
Pressure30.27 inHg
Wind3.6 mph E
Humidity58%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1962° / 47°0.05
62 °
Walnut Creek, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.05 in
Chance of precipitation23%
Record high73° (1989)
Record low33° (1964)
Fri, 2062° / 47°0.09
62 °
Walnut Creek, Friday, 20 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1989)
Record low34° (1964)
Sat, 2161° / 47°0.1
61 °
Walnut Creek, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.1 in
Chance of precipitation25%
Record high71° (1962)
Record low35° (1964)
Sun, 2261° / 47°0.08
61 °
Walnut Creek, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.08 in
Chance of precipitation23%
Record high69° (2005)
Record low38° (1985)
Mon, 2362° / 46°0.04
62 °
Walnut Creek, Monday, 23 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.04 in
Chance of precipitation18%
Record high75° (1995)
Record low36° (1994)
Tue, 2462° / 46°0.07
62 °
Walnut Creek, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.07 in
Chance of precipitation15%
Record high74° (1995)
Record low35° (2010)
Wed, 2561° / 46°0.05
61 °
Walnut Creek, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.05 in
Chance of precipitation17%
Record high73° (1975)
Record low38° (1993)
Thu, 2660° / 45°0.05
60 °
Walnut Creek, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.05 in
Chance of precipitation20%
Record high70° (2002)
Record low37° (2010)
Fri, 2760° / 45°0.06
60 °
Walnut Creek, Friday, 27 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (1986)
Record low35° (2023)
Sat, 2859° / 44°0.11
59 °
Walnut Creek, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.11 in
Chance of precipitation22%
Record high71° (1995)
Record low35° (2023)
Sun, 2959° / 45°0.11
59 °
Walnut Creek, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.11 in
Chance of precipitation25%
Record high72° (1995)
Record low35° (2015)
Mon, 3059° / 44°0.14
59 °
Walnut Creek, Monday, 30 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.14 in
Chance of precipitation25%
Record high71° (1977)
Record low35° (2015)
Tue, 0160° / 45°0.1
60 °
Walnut Creek, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.1 in
Chance of precipitation27%
Record high68° (2013)
Record low38° (1972)
Wed, 0259° / 45°0.17
59 °
Walnut Creek, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.17 in
Chance of precipitation25%
Record high70° (2011)
Record low35° (2022)
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 Walnut Creek, 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 Walnut Creek, 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.