3.4 mph WNW

Wind

7 mph WNW

Gusts

1014 hPa

Pressure

0 mm

Precipitation

45 %

Humidity

UV index

Pollen (today)

Hazel	0 grains/m³
Alder	0 grains/m³
Birch	0 grains/m³
Oak	0 grains/m³
Grass	166 grains/m³
Mugwort	25 grains/m³
Ragweed	0 grains/m³

Hazel None

Alder None

Birch None

Oak None

Grass High

Mugwort Moderate

Ragweed None

05:56 / 20:06

Sunrise / Sunset

10:36 / 22:55

Moonrise / Moonset

Waxing Crescent (23 %)

Moon phase

Updated: Jul 19, 2026, 6:41 CEST Jul 18, 2026, 21:41 PDT

Today's Summary

If you head out in Simi Valley today, you'll see a clear sky. The thermometer currently shows 26.1°C. Wear light, breathable clothes and drink plenty of fluids. During the day temperatures will range between 17.7°C and 33.4°C.

Hourly forecast – Simi Valley, today

Jul 18, 21:00

20 °C

Clear

Jul 18, 22:00

20 °C

Clear

Jul 18, 23:00

20 °C

Clear

Jul 19, 00:00

20 °C

Clear

Jul 19, 01:00

19 °C

Clear

Jul 19, 02:00

18 °C

Clear

Jul 19, 03:00

17 °C

Clear

Jul 19, 04:00

17 °C

Sunny

Jul 19, 05:00

19 °C

Sunny

Jul 19, 06:00

22 °C

Sunny

Jul 19, 07:00

25 °C

Sunny

Jul 19, 08:00

27 °C

Sunny

Jul 19, 09:00

30 °C

Sunny

Jul 19, 10:00

32 °C

Sunny

Jul 19, 11:00

33 °C

Sunny

Jul 19, 12:00

32 °C

Sunny

Jul 19, 13:00

32 °C

Sunny

Jul 19, 14:00

32 °C

Sunny

Jul 19, 15:00

31 °C

Sunny

Jul 19, 16:00

30 °C

Sunny

Jul 19, 17:00

27 °C

Sunny

Jul 19, 18:00

22 °C

Sunny

Jul 19, 19:00

18 °C

Clear

Jul 19, 20:00

18 °C

Clear

Time

Temperature (°C)

20° 20° 20° 20° 19° 18° 17° 17° 19° 22° 25° 27° 30° 32° 33° 32° 32° 32° 31° 30° 27° 22° 18° 18°

Chance of rain (%)

Precipitation

—

Wind (mph)

ESE
1

SE
2

SSE
2

S
2

SSW
2

SSW
0

ENE
2

E
3

ESE
3

S
2

SSW
4

SW
5

SW
7

WSW
10

WSW
11

WSW
12

W
11

WSW
9

W
8

W
7

WNW
4

NNW
2

Pressure (hPa)

1014

1013

1014

1013

1012

1011

1012

1013

Humidity (%)

83 %

76 %

68 %

70 %

78 %

88 %

87 %

84 %

70 %

57 %

50 %

36 %

33 %

32 %

33 %

32 %

30 %

28 %

30 %

38 %

54 %

61 %

60 %

Cloud cover (%)

2 %

0 %

1 %

2 %

1 %

3 %

7 %

8 %

14-day weather forecast – Simi Valley

14-day trend for Simi Valley: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 17°C at night, with daytime highs up to 39.6°C.

Date

Jul 18

Jul 19

Jul 20

Jul 21

Jul 22

Jul 23

Jul 24

Jul 25

Jul 26

Jul 27

Jul 28

Jul 29

Jul 30

Jul 31

Temperature (°C)

18–33° 17–33° 18–34° 18–34° 18–35° 20–38° 21–37° 20–36° 20–37° 20–39° 20–40° 20–36° 18–37° 19–37°

Chance of rain (%)

Precipitation

—

Wind max (mph)

Date	Weather	Min °C	Max °C	Sunrise	Sunset	Moonrise	Moonset	Moon phase
July 18, 2026	Sunny	18 °C	33 °C	05:56	20:06	10:36	22:55	Waxing Crescent (23 %)
July 19, 2026	Sunny	17 °C	33 °C	05:57	20:05	11:43	23:23	First Quarter (33 %)
July 20, 2026	Sunny	18 °C	34 °C	05:57	20:05	12:48	23:53	First Quarter (43 %)
July 21, 2026	Sunny	18 °C	34 °C	05:58	20:04	13:52	Does not set today	First Quarter (53 %)
July 22, 2026	Sunny	18 °C	35 °C	05:59	20:04	14:56	00:25	First Quarter (64 %)
July 23, 2026	Sunny	20 °C	38 °C	05:59	20:03	15:59	01:01	Waxing Moon (74 %)
July 24, 2026	Sunny	21 °C	37 °C	06:00	20:02	16:58	01:42	Waxing Moon (82 %)
July 25, 2026	Sunny	20 °C	36 °C	06:01	20:02	17:53	02:29	Waxing Moon (90 %)
July 26, 2026	Sunny	20 °C	37 °C	06:01	20:01	18:41	03:22	Waxing Moon (95 %)
July 27, 2026	Sunny	20 °C	39 °C	06:02	20:00	19:22	04:18	Full Moon (99 %)
July 28, 2026	Sunny	20 °C	40 °C	06:03	20:00	19:58	05:17	Full Moon (100 %)
July 29, 2026	Sunny	20 °C	36 °C	06:03	19:59	20:28	06:16	Full Moon (99 %)
July 30, 2026	Sunny	18 °C	37 °C	06:04	19:58	20:55	07:14	Waning Moon (96 %)
July 31, 2026	Sunny	19 °C	37 °C	06:05	19:57	21:20	08:11	Waning Moon (91 %)

Weather Simi Valley: Current forecast

Pollen (today)

Today's Summary

Hourly forecast – Simi Valley, today

14-day weather forecast – Simi Valley