As of 01:52 PDT

Weather in Sunnyvale, CA

52°Current weather

Sunnyvale, Saturday, 24 October, 01:52

Clear. Feels like 51°. High 73°, low 52°.

Pressure30.03 inHg
Wind0.9 mph S
Humidity82%
Visibility6.2 mi
Dew point47°

Monthly outlook for Sunnyvale, CA: average high 71.6°, average low 55.6°. That is 1.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 5 November (77.9°), the coolest 26 October (47.7°).

71.6°/55.6°
Average high / low
+1.6°
Above normal
1 / 2
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
24 October – 2 November70.2°69.6°+0.4°
3 November – 12 November73.8°66°+4.3°
13 November – 22 Novemberat normal62.4°—

October records over 66 years

103.1°2 October 2024All-time high
35.2°29 October 1971All-time low
Sun, 2575° / 54°0Overcast
75 °Overcast

Sunnyvale, Sunday, 25 October

Overcast. High 75°, low 54°.

Pressure30.06 inHg
Wind1.8 mph N
Humidity70%
Visibility6.2 mi
Dew point53°
Mon, 2667° / 48°0Partly cloudy
67 °Partly cloudy

Sunnyvale, Monday, 26 October

Partly cloudy. High 67°, low 48°.

Pressure30.15 inHg
Wind2.6 mph NE
Humidity73%
Visibility4.2 mi
Dew point55°
Tue, 2765° / 48°0Partly cloudy
65 °Partly cloudy

Sunnyvale, Tuesday, 27 October

Partly cloudy. High 65°, low 48°.

Pressure30.06 inHg
Wind1.7 mph N
Humidity75%
Visibility6.2 mi
Dew point51°
Wed, 2866° / 50°0Overcast
66 °Overcast

Sunnyvale, Wednesday, 28 October

Overcast. High 66°, low 50°.

Pressure29.97 inHg
Wind4.5 mph NW
Humidity71%
Visibility—
Dew point49°
Thu, 2964° / 54°0Overcast
64 °Overcast

Sunnyvale, Thursday, 29 October

Overcast. High 64°, low 54°.

Pressure29.91 inHg
Wind8.5 mph NW
Humidity62%
Visibility—
Dew point49°
Fri, 3071° / 52°0Clear
71 °Clear

Sunnyvale, Friday, 30 October

Clear. High 71°, low 52°.

Pressure29.94 inHg
Wind6 mph NW
Humidity40%
Visibility—
Dew point38°
Sat, 3171° / 53°0Overcast
71 °Overcast

Sunnyvale, Saturday, 31 October

Overcast. High 71°, low 53°.

Pressure29.97 inHg
Wind4 mph NW
Humidity41%
Visibility—
Dew point38°
Sun, 0172° / 57°0Light rain
72 °Light rain

Sunnyvale, Sunday, 1 November

Light rain. High 72°, low 57°.

Pressure29.97 inHg
Wind6.1 mph SE
Humidity37%
Visibility—
Dew point37°
Mon, 0277° / 59°0Mostly clear
77 °Mostly clear

Sunnyvale, Monday, 2 November

Mostly clear. High 77°, low 59°.

Pressure30.09 inHg
Wind7.1 mph NW
Humidity54%
Visibility—
Dew point52°
Tue, 0376° / 60°0Partly cloudy
76 °Partly cloudy

Sunnyvale, Tuesday, 3 November

Partly cloudy. High 76°, low 60°.

Pressure30.21 inHg
Wind7.4 mph NW
Humidity54%
Visibility—
Dew point52°
Wed, 0473° / 60°0Overcast
73 °Overcast

Sunnyvale, Wednesday, 4 November

Overcast. High 73°, low 60°.

Pressure30.06 inHg
Wind5.8 mph N
Humidity62%
Visibility—
Dew point53°
Thu, 0578° / 59°0Overcast
78 °Overcast

Sunnyvale, Thursday, 5 November

Overcast. High 78°, low 59°.

Pressure29.94 inHg
Wind6.8 mph S
Humidity50%
Visibility—
Dew point51°
Fri, 0667° / 62°0.51Rain
67 °Rain

Sunnyvale, Friday, 6 November

Rain. High 67°, low 62°.

Pressure30.00 inHg
Wind10.7 mph S
Humidity92%
Visibility—
Dew point62°
Sat, 0773° / 61°0Overcast
73 °Overcast

Sunnyvale, Saturday, 7 November

Overcast. High 73°, low 61°.

Pressure30.18 inHg
Wind2.9 mph W
Humidity74%
Visibility—
Dew point56°
Sun, 0876° / 60°0Partly cloudy
76 °Partly cloudy

Sunnyvale, Sunday, 8 November

Partly cloudy. High 76°, low 60°.

Pressure30.18 inHg
Wind3.3 mph N
Humidity43%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0965° / 50°0.05Climate normal
65 °Climate normal

Sunnyvale, Monday, 9 November

Climate normal for this date — 60-year average.

Average high65°
Average low50°
Average precipitation0.05 in
Chance of precipitation22%
Record high80° (1976)
Record low42° (1985)
Tue, 1064° / 50°0.08Climate normal
64 °Climate normal

Sunnyvale, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high64°
Average low50°
Average precipitation0.08 in
Chance of precipitation28%
Record high80° (1990)
Record low39° (2020)
Wed, 1164° / 51°0.07Climate normal
64 °Climate normal

Sunnyvale, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high64°
Average low51°
Average precipitation0.07 in
Chance of precipitation23%
Record high82° (1990)
Record low40° (1985)
Thu, 1264° / 50°0.06Climate normal
64 °Climate normal

Sunnyvale, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high64°
Average low50°
Average precipitation0.06 in
Chance of precipitation17%
Record high81° (1990)
Record low41° (1985)
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)

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.