Monthly outlook for Walnut Creek, CA: average high 58.6°, average low 47.6°. That is 1.9° below the climate normal for November. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 14 November (65.3°), the coolest 17 November (42.4°).
58.6°/47.6°
Average high / low
−1.9°
Below normal
5 / 4
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
57.1°
62.8°
-3.2°
23 November – 2 December
61.1°
59.9°
+0.7°
3 December – 12 December
at normal
58.1°
—
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).
Sat, 1465° / 46°0
65 °
Walnut Creek, Saturday, 14 November
Partly cloudy. High 65°, low 46°.
Pressure29.97 inHg
Wind2.7 mph SW
Humidity60%
Visibility6.2 mi
Dew point49°
Sun, 1561° / 52°0.7
61 °
Walnut Creek, Sunday, 15 November
Rain. High 61°, low 52°.
Pressure30.03 inHg
Wind8.6 mph S
Humidity83%
Visibility5.3 mi
Dew point55°
Mon, 1660° / 48°0.01
60 °
Walnut Creek, Monday, 16 November
Light rain. High 60°, low 48°.
Pressure30.12 inHg
Wind7.3 mph W
Humidity56%
Visibility6.2 mi
Dew point43°
Tue, 1759° / 42°0
59 °
Walnut Creek, Tuesday, 17 November
Clear. High 59°, low 42°.
Pressure30.12 inHg
Wind6.5 mph W
Humidity71%
Visibility—
Dew point43°
Wed, 1856° / 48°0.49
56 °
Walnut Creek, Wednesday, 18 November
Rain. High 56°, low 48°.
Pressure30.12 inHg
Wind14.7 mph S
Humidity66%
Visibility—
Dew point44°
Thu, 1954° / 46°0
54 °
Walnut Creek, Thursday, 19 November
Partly cloudy. High 54°, low 46°.
Pressure30.00 inHg
Wind5.6 mph NW
Humidity70%
Visibility—
Dew point42°
Fri, 2054° / 45°0
54 °
Walnut Creek, Friday, 20 November
Clear. High 54°, low 45°.
Pressure30.06 inHg
Wind5.7 mph E
Humidity54%
Visibility—
Dew point33°
Sat, 2152° / 43°0
52 °
Walnut Creek, Saturday, 21 November
Overcast. High 52°, low 43°.
Pressure30.15 inHg
Wind7.1 mph E
Humidity59%
Visibility—
Dew point35°
Sun, 2249° / 45°0.21
49 °
Walnut Creek, Sunday, 22 November
Light rain. High 49°, low 45°.
Pressure30.15 inHg
Wind8.2 mph E
Humidity84%
Visibility—
Dew point42°
Mon, 2355° / 46°0.17
55 °
Walnut Creek, Monday, 23 November
Rain. High 55°, low 46°.
Pressure30.09 inHg
Wind8.1 mph E
Humidity88%
Visibility—
Dew point45°
Tue, 2462° / 49°0
62 °
Walnut Creek, Tuesday, 24 November
Partly cloudy. High 62°, low 49°.
Pressure30.09 inHg
Wind4.2 mph NE
Humidity62%
Visibility—
Dew point43°
Wed, 2560° / 49°0
60 °
Walnut Creek, Wednesday, 25 November
Overcast. High 60°, low 49°.
Pressure30.06 inHg
Wind5 mph NE
Humidity68%
Visibility—
Dew point43°
Thu, 2661° / 49°0
61 °
Walnut Creek, Thursday, 26 November
Mostly clear. High 61°, low 49°.
Pressure30.21 inHg
Wind4.1 mph NE
Humidity60%
Visibility—
Dew point42°
Fri, 2765° / 53°0.01
65 °
Walnut Creek, Friday, 27 November
Light rain. High 65°, low 53°.
Pressure30.18 inHg
Wind7.9 mph SW
Humidity54%
Visibility—
Dew point41°
Sat, 2863° / 53°0
63 °
Walnut Creek, Saturday, 28 November
Overcast. High 63°, low 53°.
Pressure30.18 inHg
Wind4 mph W
Humidity74%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 0359° / 45°0.13
59 °
Walnut Creek, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.13 in
Chance of precipitation32%
Record high69° (1979)
Record low36° (2004)
Fri, 0459° / 45°0.07
59 °
Walnut Creek, Friday, 4 December
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.07 in
Chance of precipitation25%
Record high68° (1979)
Record low35° (1971)
Sat, 0559° / 45°0.07
59 °
Walnut Creek, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.07 in
Chance of precipitation23%
Record high68° (1979)
Record low34° (1972)
Sun, 0659° / 45°0.07
59 °
Walnut Creek, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (1979)
Record low34° (2013)
Mon, 0758° / 44°0.07
58 °
Walnut Creek, Monday, 7 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.07 in
Chance of precipitation27%
Record high70° (2020)
Record low34° (1998)
Tue, 0858° / 44°0.06
58 °
Walnut Creek, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.06 in
Chance of precipitation23%
Record high68° (1979)
Record low31° (1972)
Wed, 0958° / 44°0.07
58 °
Walnut Creek, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.07 in
Chance of precipitation25%
Record high68° (1990)
Record low26° (1972)
Thu, 1058° / 44°0.1
58 °
Walnut Creek, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.1 in
Chance of precipitation25%
Record high66° (2020)
Record low29° (1972)
Fri, 1157° / 43°0.12
57 °
Walnut Creek, Friday, 11 December
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.12 in
Chance of precipitation28%
Record high65° (1988)
Record low29° (1972)
Sat, 1256° / 43°0.13
56 °
Walnut Creek, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.13 in
Chance of precipitation28%
Record high65° (1988)
Record low29° (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 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.