As of 17:31 PDT

Weather in Sunnyvale, CA

67°Current weather

Sunnyvale, Wednesday, 28 October, 17:31

Clear. Feels like 66°. High 69°, low 46°.

Pressure29.94 inHg
Wind12.7 mph NW
Humidity45%
Visibility6.2 mi
Dew point45°

Monthly outlook for Sunnyvale, CA: average high 70.1°, average low 53.5°. That is 1.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 3 November (77.8°), the coolest 28 October (46°).

70.1°/53.5°
Average high / low
+1.7°
Above normal
3 / 3
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
28 October – 6 November69.7°68.4°+0.7°
7 November – 16 November70.9°64.3°+3.7°
17 November – 26 Novemberat normal61.2°—

October records over 66 years

103.1°2 October 2024All-time high
35.2°29 October 1971All-time low
Thu, 2971° / 50°0Overcast
71 °Overcast

Sunnyvale, Thursday, 29 October

Overcast. High 71°, low 50°.

Pressure29.88 inHg
Wind1 mph NE
Humidity41%
Visibility6.2 mi
Dew point41°
Fri, 3068° / 49°0Clear
68 °Clear

Sunnyvale, Friday, 30 October

Clear. High 68°, low 49°.

Pressure29.94 inHg
Wind1.6 mph NW
Humidity53%
Visibility6.2 mi
Dew point48°
Sat, 3168° / 50°0.07Rain
68 °Rain

Sunnyvale, Saturday, 31 October

Rain. High 68°, low 50°.

Pressure29.94 inHg
Wind1 mph S
Humidity53%
Visibility6.2 mi
Dew point48°
Sun, 0163° / 52°0Clear
63 °Clear

Sunnyvale, Sunday, 1 November

Clear. High 63°, low 52°.

Pressure30.00 inHg
Wind7.2 mph NW
Humidity49%
Visibility6.2 mi
Dew point41°
Mon, 0269° / 49°0Partly cloudy
69 °Partly cloudy

Sunnyvale, Monday, 2 November

Partly cloudy. High 69°, low 49°.

Pressure30.18 inHg
Wind5.5 mph NW
Humidity42%
Visibility—
Dew point38°
Tue, 0378° / 55°0Partly cloudy
78 °Partly cloudy

Sunnyvale, Tuesday, 3 November

Partly cloudy. High 78°, low 55°.

Pressure30.09 inHg
Wind4.7 mph NW
Humidity31%
Visibility—
Dew point36°
Wed, 0471° / 57°0Partly cloudy
71 °Partly cloudy

Sunnyvale, Wednesday, 4 November

Partly cloudy. High 71°, low 57°.

Pressure29.91 inHg
Wind4.5 mph NW
Humidity38%
Visibility—
Dew point40°
Thu, 0569° / 56°0.06Light rain
69 °Light rain

Sunnyvale, Thursday, 5 November

Light rain. High 69°, low 56°.

Pressure29.91 inHg
Wind5 mph NW
Humidity58%
Visibility—
Dew point49°
Fri, 0670° / 55°0Clear
70 °Clear

Sunnyvale, Friday, 6 November

Clear. High 70°, low 55°.

Pressure29.91 inHg
Wind6.2 mph W
Humidity63%
Visibility—
Dew point51°
Sat, 0764° / 55°0.3Rain
64 °Rain

Sunnyvale, Saturday, 7 November

Rain. High 64°, low 55°.

Pressure29.88 inHg
Wind13.1 mph NW
Humidity59%
Visibility—
Dew point46°
Sun, 0868° / 52°0Mostly clear
68 °Mostly clear

Sunnyvale, Sunday, 8 November

Mostly clear. High 68°, low 52°.

Pressure30.09 inHg
Wind7.5 mph N
Humidity44%
Visibility—
Dew point38°
Mon, 0972° / 55°0Overcast
72 °Overcast

Sunnyvale, Monday, 9 November

Overcast. High 72°, low 55°.

Pressure30.12 inHg
Wind3.5 mph N
Humidity38%
Visibility—
Dew point37°
Tue, 1074° / 58°0Overcast
74 °Overcast

Sunnyvale, Tuesday, 10 November

Overcast. High 74°, low 58°.

Pressure30.12 inHg
Wind4.3 mph N
Humidity41%
Visibility—
Dew point42°
Wed, 1175° / 58°0Clear
75 °Clear

Sunnyvale, Wednesday, 11 November

Clear. High 75°, low 58°.

Pressure30.03 inHg
Wind5.7 mph NW
Humidity35%
Visibility—
Dew point39°
Thu, 1273° / 57°0Clear
73 °Clear

Sunnyvale, Thursday, 12 November

Clear. High 73°, low 57°.

Pressure30.00 inHg
Wind6.1 mph N
Humidity60%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1364° / 50°0.13Climate normal
64 °Climate normal

Sunnyvale, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°
Average low50°
Average precipitation0.13 in
Chance of precipitation28%
Record high79° (1995)
Record low40° (1964)
Sat, 1464° / 50°0.06Climate normal
64 °Climate normal

Sunnyvale, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°
Average low50°
Average precipitation0.06 in
Chance of precipitation23%
Record high76° (1992)
Record low39° (1964)
Sun, 1564° / 49°0.06Climate normal
64 °Climate normal

Sunnyvale, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (2008)
Record low35° (1964)
Mon, 1663° / 50°0.1Climate normal
63 °Climate normal

Sunnyvale, Monday, 16 November

Climate normal for this date — 60-year average.

Average high63°
Average low50°
Average precipitation0.1 in
Chance of precipitation23%
Record high80° (2008)
Record low37° (1964)
Tue, 1763° / 50°0.11Climate normal
63 °Climate normal

Sunnyvale, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high63°
Average low50°
Average precipitation0.11 in
Chance of precipitation27%
Record high81° (2008)
Record low39° (1975)
Wed, 1863° / 49°0.06Climate normal
63 °Climate normal

Sunnyvale, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high63°
Average low49°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (2005)
Record low36° (1994)
Thu, 1962° / 48°0.03Climate normal
62 °Climate normal

Sunnyvale, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high62°
Average low48°
Average precipitation0.03 in
Chance of precipitation22%
Record high78° (1989)
Record low38° (1994)
Fri, 2062° / 48°0.09Climate normal
62 °Climate normal

Sunnyvale, Friday, 20 November

Climate normal for this date — 60-year average.

Average high62°
Average low48°
Average precipitation0.09 in
Chance of precipitation25%
Record high76° (1989)
Record low40° (1964)
Sat, 2160° / 48°0.07Climate normal
60 °Climate normal

Sunnyvale, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high60°
Average low48°
Average precipitation0.07 in
Chance of precipitation25%
Record high74° (2002)
Record low37° (1985)
Sun, 2261° / 48°0.07Climate normal
61 °Climate normal

Sunnyvale, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high61°
Average low48°
Average precipitation0.07 in
Chance of precipitation28%
Record high74° (2005)
Record low40° (1985)
Mon, 2361° / 47°0.04Climate normal
61 °Climate normal

Sunnyvale, Monday, 23 November

Climate normal for this date — 60-year average.

Average high61°
Average low47°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (1995)
Record low39° (1994)
Tue, 2461° / 47°0.07Climate normal
61 °Climate normal

Sunnyvale, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high61°
Average low47°
Average precipitation0.07 in
Chance of precipitation22%
Record high75° (1995)
Record low38° (2010)
Wed, 2561° / 47°0.05Climate normal
61 °Climate normal

Sunnyvale, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high61°
Average low47°
Average precipitation0.05 in
Chance of precipitation22%
Record high78° (2017)
Record low39° (1993)
Thu, 2660° / 46°0.07Climate normal
60 °Climate normal

Sunnyvale, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high60°
Average low46°
Average precipitation0.07 in
Chance of precipitation20%
Record high73° (2014)
Record low39° (1990)

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.