10-Day Weather Forecast for Simi Valley (CA)

Six-hourly outlook through Tuesday 15 September. Updated every three hours via MET Norway.

Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Sunday
6 Sep
Rain
21°C (70°F)
3.4 mm (0.1 in)
Rain showers
20°C (68°F)
2.3 mm (0.1 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Hourly ›
Monday
7 Sep
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
31°C (88°F)
0 mm (0 in)
Clear skies
30°C (86°F)
0 mm (0 in)
Hourly ›
Tuesday
8 Sep
Cloudy
23°C (73°F)
0.2 mm (0.01 in)
Cloudy
23°C (73°F)
0.1 mm (0 in)
Partly cloudy
32°C (90°F)
0 mm (0 in)
Partly cloudy
27°C (81°F)
0 mm (0 in)
Hourly ›
Wednesday
9 Sep
Clear skies
25°C (77°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
36°C (97°F)
0 mm (0 in)
Clear skies
34°C (93°F)
0 mm (0 in)
Hourly ›
Thursday
10 Sep
Clear skies
26°C (79°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Clear skies
37°C (99°F)
0 mm (0 in)
Clear skies
36°C (97°F)
0 mm (0 in)
Hourly ›
Friday
11 Sep
Clear skies
30°C (86°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Clear skies
32°C (90°F)
0 mm (0 in)
Clear skies
32°C (90°F)
0 mm (0 in)
Hourly ›
Saturday
12 Sep
Clear skies
25°C (77°F)
0 mm (0 in)
Clear skies
21°C (70°F)
0 mm (0 in)
Clear skies
29°C (84°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0 mm (0 in)
Hourly ›
Sunday
13 Sep
Clear skies
21°C (70°F)
0 mm (0 in)
Partly cloudy
19°C (66°F)
0 mm (0 in)
Mostly sunny
24°C (75°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Hourly ›
Monday
14 Sep
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
18°C (64°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Hourly ›
Tuesday
15 Sep
Clear skies
21°C (70°F)
0 mm (0 in)
Clear skies
18°C (64°F)
0 mm (0 in)
Clear skies
29°C (84°F)
0 mm (0 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Simi Valley this week?

Today's weather - Sunday 6 Sep

For Sunday the predicted weather in Simi Valley is rain showers during the morning and afternoon. The maximum temperature is a warm 26°C (79°F), while the minimum temperature is a pleasant 20°C (68°F).

Tomorrow's weather - Monday 7 Sep

For Monday the forecast for Simi Valley is clear skies. Temperatures will range from a pleasant 20°C (68°F) to a very warm 31°C (88°F).

10-Day Weather Forecast

In the coming 10 days, the weather in Simi Valley will reach 37°C (99°F) on Thursday before declining again. Daytime highs during this period will average around 31°C (88°F), with nighttime lows around 22°C (72°F). These values are typical for September. The following 10 days will bring plenty of sunshine. Rainfall is expected to be much more than usual (compared to typical September conditions). The forecast shows mostly dry conditions. Precipitation is likely on about 1 day (Sun). The wind will be generally calm during this period.

Weather Forecast FAQ for Simi Valley

When will be the warmest day next week?

The warmest day is expected to be Thursday with a high of 37°C (99°F).

When will be the coldest day?

The coldest day is forecasted for Sunday with a low of 19°C (66°F).

Will it rain next week in Simi Valley?

Yes, rain is expected on 1 day , specifically on Sun.

How much rainfall is expected next week?

A total of 6 mm (0.2 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 19°C (66°F) to 37°C (99°F).

More about Simi Valley

Explore the full Simi Valley climate overview with monthly averages, or check rainfall data and temperature by month.

Simi Valley weather by month

Browse monthly averages for Simi Valley: climate by month with temperature, rainfall and sunshine.

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