Monthly outlook for Sunnyvale, CA: average high 58.8°, average low 48.5°. That is 1.3° below the climate normal for November. Precipitation is expected on 9 days (about 5.2 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 15 November (63.9°), the coolest 21 November (44.1°).
58.8°/48.5°
Average high / low
−1.3°
Below normal
9 / 4
Wet days / normal
5.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
57.7°
61.8°
-2.3°
25 November – 4 December
60.6°
59.5°
+0.6°
5 December – 14 December
at normal
57.7°
—
November records over 66 years
86.5°4 November 1976All-time high
34.7°15 November 1964All-time low
Mon, 1660° / 52°0.36
60 °
Sunnyvale, Monday, 16 November
Rain. High 60°, low 52°.
Pressure30.12 inHg
Wind4.2 mph NW
Humidity65%
Visibility6.2 mi
Dew point47°
Tue, 1759° / 46°0
59 °
Sunnyvale, Tuesday, 17 November
Mostly clear. High 59°, low 46°.
Pressure30.12 inHg
Wind2 mph N
Humidity57%
Visibility6.2 mi
Dew point43°
Wed, 1855° / 48°1.31
55 °
Sunnyvale, Wednesday, 18 November
Heavy rain. High 55°, low 48°.
Pressure29.94 inHg
Wind2.8 mph SE
Humidity91%
Visibility2.5 mi
Dew point52°
Thu, 1954° / 47°1.39
54 °
Sunnyvale, Thursday, 19 November
Rain. High 54°, low 47°.
Pressure29.74 inHg
Wind6.1 mph SE
Humidity89%
Visibility3.4 mi
Dew point50°
Fri, 2059° / 44°0
59 °
Sunnyvale, Friday, 20 November
Mostly clear. High 59°, low 44°.
Pressure30.12 inHg
Wind2.6 mph S
Humidity76%
Visibility—
Dew point46°
Sat, 2153° / 44°0.44
53 °
Sunnyvale, Saturday, 21 November
Rain. High 53°, low 44°.
Pressure29.91 inHg
Wind12.2 mph S
Humidity86%
Visibility—
Dew point47°
Sun, 2258° / 48°0.08
58 °
Sunnyvale, Sunday, 22 November
Light rain. High 58°, low 48°.
Pressure30.12 inHg
Wind4.9 mph SE
Humidity73%
Visibility—
Dew point45°
Mon, 2353° / 49°0.06
53 °
Sunnyvale, Monday, 23 November
Light rain. High 53°, low 49°.
Pressure30.12 inHg
Wind11.5 mph S
Humidity77%
Visibility—
Dew point43°
Tue, 2462° / 52°0.67
62 °
Sunnyvale, Tuesday, 24 November
Rain. High 62°, low 52°.
Pressure29.94 inHg
Wind17.8 mph S
Humidity81%
Visibility—
Dew point55°
Wed, 2561° / 50°0.03
61 °
Sunnyvale, Wednesday, 25 November
Light rain. High 61°, low 50°.
Pressure30.27 inHg
Wind4.4 mph N
Humidity76%
Visibility—
Dew point49°
Thu, 2664° / 51°0
64 °
Sunnyvale, Thursday, 26 November
Overcast. High 64°, low 51°.
Pressure30.33 inHg
Wind4.3 mph N
Humidity68%
Visibility—
Dew point47°
Fri, 2757° / 51°0.35
57 °
Sunnyvale, Friday, 27 November
Rain. High 57°, low 51°.
Pressure30.03 inHg
Wind8 mph S
Humidity90%
Visibility—
Dew point54°
Sat, 2859° / 48°0
59 °
Sunnyvale, Saturday, 28 November
Clear. High 59°, low 48°.
Pressure30.18 inHg
Wind6.6 mph N
Humidity74%
Visibility—
Dew point45°
Sun, 2960° / 47°0
60 °
Sunnyvale, Sunday, 29 November
Overcast. High 60°, low 47°.
Pressure30.24 inHg
Wind3.8 mph N
Humidity51%
Visibility—
Dew point35°
Mon, 3063° / 47°0
63 °
Sunnyvale, Monday, 30 November
Mostly clear. High 63°, low 47°.
Pressure30.18 inHg
Wind3.6 mph N
Humidity55%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0160° / 46°0.1
60 °
Sunnyvale, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.1 in
Chance of precipitation27%
Record high71° (2021)
Record low38° (1972)
Wed, 0259° / 46°0.16
59 °
Sunnyvale, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.16 in
Chance of precipitation27%
Record high71° (1986)
Record low33° (2022)
Thu, 0360° / 46°0.11
60 °
Sunnyvale, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.11 in
Chance of precipitation28%
Record high72° (1979)
Record low37° (1968)
Fri, 0459° / 46°0.07
59 °
Sunnyvale, Friday, 4 December
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.07 in
Chance of precipitation25%
Record high72° (1979)
Record low35° (1971)
Sat, 0559° / 47°0.08
59 °
Sunnyvale, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.08 in
Chance of precipitation27%
Record high69° (1962)
Record low38° (1960)
Sun, 0659° / 46°0.07
59 °
Sunnyvale, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (1962)
Record low31° (1960)
Mon, 0759° / 45°0.08
59 °
Sunnyvale, Monday, 7 December
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.08 in
Chance of precipitation28%
Record high71° (2006)
Record low33° (1978)
Tue, 0858° / 45°0.05
58 °
Sunnyvale, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.05 in
Chance of precipitation18%
Record high71° (1990)
Record low33° (1972)
Wed, 0958° / 45°0.06
58 °
Sunnyvale, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.06 in
Chance of precipitation28%
Record high72° (1990)
Record low24° (1972)
Thu, 1058° / 45°0.11
58 °
Sunnyvale, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.11 in
Chance of precipitation22%
Record high69° (1962)
Record low31° (1972)
Fri, 1157° / 44°0.11
57 °
Sunnyvale, Friday, 11 December
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.11 in
Chance of precipitation30%
Record high68° (1962)
Record low31° (1972)
Sat, 1257° / 45°0.12
57 °
Sunnyvale, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.12 in
Chance of precipitation30%
Record high68° (1988)
Record low36° (1967)
Sun, 1356° / 45°0.09
56 °
Sunnyvale, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.09 in
Chance of precipitation25%
Record high64° (1988)
Record low28° (1972)
Mon, 1456° / 44°0.12
56 °
Sunnyvale, Monday, 14 December
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.12 in
Chance of precipitation28%
Record high66° (1962)
Record low28° (1967)
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 Sunnyvale, 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 Sunnyvale, 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.