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October weather forecast in Simi Valley

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

28 September, sun

	703 mmHg		48%
	3.4 m/s		+21

28 September, Sunday. day, 27°; night, 15°; partly cloudy

29 September, mon

	703 mmHg		49%
	3 m/s		+21

29 September, Monday. day, 27°; night, 14°; partly cloudy

30 September, tue

	703 mmHg		46%
	3.1 m/s		+22

30 September, Tuesday. day, 28°; night, 14°; clear

1 October, wed

	703 mmHg		45%
	3 m/s		+22

1 October, Wednesday. day, 27°; night, 14°; clear

2 October, thu

	703 mmHg		49%
	3.1 m/s		+21

2 October, Thursday. day, 27°; night, 14°; clear

3 October, fri

	703 mmHg		50%
	3.1 m/s		+20

3 October, Friday. day, 26°; night, 13°; clear

4 October, sat

	703 mmHg		52%
	3.4 m/s		+20

4 October, Saturday. day, 25°; night, 12°; rain

5 October, sun

	703 mmHg		50%
	3.3 m/s		+20

5 October, Sunday. day, 25°; night, 12°; clear

6 October, mon

	704 mmHg		48%
	3.3 m/s		+21

6 October, Monday. day, 25°; night, 12°; clear

7 October, tue

	704 mmHg		46%
	3 m/s		+21

7 October, Tuesday. day, 26°; night, 12°; clear

8 October, wed

	703 mmHg		46%
	2.8 m/s		+21

8 October, Wednesday. day, 26°; night, 13°; clear

9 October, thu

	703 mmHg		49%
	3.1 m/s		+21

9 October, Thursday. day, 25°; night, 13°; clear

10 October, fri

	703 mmHg		51%
	3.4 m/s		+21

10 October, Friday. day, 24°; night, 12°; clear

11 October, sat

	703 mmHg		51%
	3.1 m/s		+20

11 October, Saturday. day, 24°; night, 11°; clear

12 October, sun

	704 mmHg		48%
	3.5 m/s		+20

12 October, Sunday. day, 24°; night, 11°; clear

13 October, mon

	704 mmHg		46%
	3.4 m/s		+20

13 October, Monday. day, 25°; night, 12°; clear

14 October, tue

	704 mmHg		45%
	3.3 m/s		+20

14 October, Tuesday. day, 26°; night, 12°; clear

15 October, wed

	704 mmHg		46%
	3.2 m/s		+21

15 October, Wednesday. day, 25°; night, 13°; clear

16 October, thu

	704 mmHg		48%
	3.5 m/s		+21

16 October, Thursday. day, 25°; night, 12°; clear

17 October, fri

	704 mmHg		47%
	3.1 m/s		+21

17 October, Friday. day, 25°; night, 12°; clear

18 October, sat

	704 mmHg		49%
	3.2 m/s		+20

18 October, Saturday. day, 24°; night, 11°; clear

19 October, sun

	704 mmHg		47%
	3.2 m/s		+20

19 October, Sunday. day, 24°; night, 11°; clear

20 October, mon

	704 mmHg		48%
	3.2 m/s		+20

20 October, Monday. day, 24°; night, 11°; clear

21 October, tue

	704 mmHg		47%
	3.2 m/s		+20

21 October, Tuesday. day, 24°; night, 11°; clear

22 October, wed

	704 mmHg		45%
	3.5 m/s		+20

22 October, Wednesday. day, 24°; night, 12°; clear

23 October, thu

	704 mmHg		46%
	3.3 m/s		+20

23 October, Thursday. day, 24°; night, 11°; overcast

24 October, fri

	704 mmHg		47%
	3.3 m/s		+20

24 October, Friday. day, 23°; night, 11°; partly cloudy

25 October, sat

	704 mmHg		50%
	3.3 m/s		+20

25 October, Saturday. day, 22°; night, 11°; partly cloudy

26 October, sun

	704 mmHg		46%
	3.4 m/s		+20

26 October, Sunday. day, 22°; night, 10°; clear

27 October, mon

	704 mmHg		44%
	3.2 m/s		+20

27 October, Monday. day, 22°; night, 10°; rain

28 October, tue

	704 mmHg		45%
	3.1 m/s		+20

28 October, Tuesday. day, 22°; night, 10°; partly cloudy

29 October, wed

	704 mmHg		49%
	3.4 m/s		+20

29 October, Wednesday. day, 21°; night, 9°; clear

30 October, thu

	704 mmHg		52%
	3.4 m/s		+20

30 October, Thursday. day, 21°; night, 9°; rain

31 October, fri

	705 mmHg		52%
	3.4 m/s		+20

31 October, Friday. day, 21°; night, 8°; partly cloudy

1 November, sat

	705 mmHg		51%
	3.3 m/s		+20

1 November, Saturday. day, 21°; night, 9°; clear

Average data for 10 years

Simi Valley October

23

sunny days

3

days with precipitation

1

cloudy day

23 sunny days; 3 days with precipitation; 1 cloudy day;

48

%

air humidity

1.8

m/s

WindSW

19

mm of precipitation

(5% of annual average)

+20

°C

Water temperature

air humidity 48%; 19 millimeters of precipitation (5% of annual average); Wind south-westerly 1.8 Meters per second; Water temperature +20°

Weather graphs for October

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

S

SW

SW

SW

SW

SW

S

SW

SW

SW

SW

S

SW

SW

SW

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Los Angeles
San Diego
Santa Monica
Beverly Hills
Monterey
Mexicali
Santa Barbara
Glendale
San Luis Obispo

Cities with similar weather in October

Shanghai
Palermo
Kerkyra
Funchal
Ischia
Brisbane
Sacramento
Cadiz
Lanzarote

The weather forecast for October 2025 is based on historical data from the past 10 years.

In October, the weather in Simi Valley is typically warm. Average daily high temperature in October is about 24 degrees above zero. On average, Simi Valley has 23 sunny, 4 partly cloudy, 3 rainy, and 1 cloudy day in October. The rains are usually light. October as well as May and June is considered the most comfortable time to visit Simi Valley.

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