As of 14:14 PDT

Sunnyvale, CA weather in October

90°

Sunnyvale, Sunday, 9 August, 14:14

Clear. Feels like 94°. High 91°, low 60°.

Pressure29.83 inHg

Wind2 mph NE

Humidity49%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

In October, Sunnyvale, CA averages a high of 73.7° and a low of 56.1°. About 1.0 inches of precipitation fall over the month (3 wet days). The record high is 103.1° (2024) and the record low 35.2° (1971). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	77.7°	59.2°	8%	100.6° (1980)	49.3° (2019)
2	77.4°	58.3°	8%	103.1° (2024)	46.9° (1973)
3	77°	57.7°	5%	101.8° (1980)	47.5° (2017)
4	76.3°	57.4°	8%	99.1° (1987)	47.3° (1982)
5	77°	57.6°	8%	102.2° (1987)	47.7° (2007)
6	77.4°	58.3°	8%	100.6° (2024)	49.8° (1970)
7	77.5°	58.6°	3%	99.3° (1996)	47.7° (1982)
8	77.4°	58.5°	2%	100.8° (1996)	48.7° (1985)
9	75.9°	57.4°	8%	92.8° (1991)	47.5° (1985)
10	74.7°	57.2°	10%	97° (1991)	46.6° (2008)
11	73.8°	56.3°	7%	88.9° (1992)	46.2° (2008)
12	75.4°	56.3°	7%	91.8° (1978)	46.8° (2008)
13	75.9°	57.6°	10%	94.8° (1978)	44.8° (2021)
14	75.2°	57.2°	12%	97° (1961)	46.6° (2025)
15	73.9°	56.3°	5%	98.2° (1961)	47.8° (1984)
16	74.1°	55.9°	10%	93.6° (2020)	46.9° (1962)
17	75°	57°	10%	93.7° (2020)	46.8° (1984)
18	73.9°	56.5°	7%	91.8° (1974)	48.2° (2017)
19	73.6°	56.5°	7%	95° (2023)	46.6° (2021)
20	72.3°	55.4°	8%	91° (1964)	47.7° (1996)
21	72°	55°	7%	91.4° (1964)	45.5° (1961)
22	71.6°	55.2°	12%	90.3° (1965)	47.5° (1985)
23	72.3°	54.9°	17%	94.6° (1965)	44.8° (1975)
24	72.1°	55.4°	12%	91.6° (1965)	46.6° (1971)
25	70.9°	54.9°	15%	92.1° (1965)	45.9° (1996)
26	70.7°	54°	10%	88.5° (1983)	43° (2022)
27	70°	53.8°	13%	88.7° (2003)	41.4° (2023)
28	68.7°	53.4°	15%	87.4° (2003)	40.3° (1971)
29	68.4°	52.2°	15%	85.1° (1965)	35.2° (1971)
30	67.6°	52.2°	15%	85.3° (1966)	40.6° (1972)
31	68.9°	52.7°	8%	84.4° (1966)	44.6° (1984)