Currently 58°F in Simi Valley, California, USA
58°F
59°F / 49°F
5 mph E
0.16"
Friday, November 21, 2025 2:30 PM PST
Simi Valley Forecast Summary
Today Tomorrow Sunday
Chance of showers, Mostly cloudy Sunny Sunny
Chance of showers, Mostly cloudy   Sunny   Sunny
High: 60°F High: 70°F High: 67°F
Low: 49°F Low: 51°F Low: 45°F
Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:  2:30 PM PST
Temperature:  58°F
Normal Temperature 69°F
Relative Humidity:  70%
Dewpoint:  48°F
Heat Index:  58°F
Wind Chill:  58°F
Wind:  5 mph E (69°)
Gusts:  16 mph
Barometer:  29.92" HgPressure Change falling

Sunrise & Sunset

Sunrise Sunset Daylight
Today: 6:26 AM 4:43 PM 10:17
Tomorrow: 6:27 AM 4:42 PM 10:16
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

Today Time Normal Last Year
High: 59°F 1:26 PM 71°F 75°F
Low: 49°F 4:03 AM 51°F 41°F

Precipitation

60 Min. Today Month Season
0.00" 0.16" 5.17" 6.79"
Season began July 1, 2025
Past Season Precipitation Totals
Data captured from a Peet Bros. Ultimeter 2100
Local Weather Roundup
Simi Valley:
58°F
Simi Valley Forecast
Friday, November 21, 2025

Scattered light showers are possible today into early Saturday in the region, along with gusty east winds. Dry weather is expected for the rest of the weekend, lasting through Thanksgiving. High temperatures will rise to near or slightly above normal next week.

Today: Mostly cloudy and breezy. 30 percent chance of showers , high near 60°F .

Pollen level is rated "low".

Predicted air quality is good, AQI: 37 (for Simi Valley and Moorpark (courtesy of the VCAPCD)).

Tonight: Partly cloudy and breezy. 20 percent chance of showers, low around 51°F.

Saturday: Sunny and breezy, high of about 70°F.

Saturday night:Clear and cool. Light breezes, low near 45°F.

Sunday: Sunny. Light breezes, high around 67°F.

Sunday night: Clear and cool, low of about 45°F.

Monday: Sunny, high near 67°F.

Monday night: Mostly clear and cool, low around 45°F.

Tuesday: Sunny, high of about 69°F.

Tuesday night: Mostly clear, low near 50°F.

Wednesday: Sunny, high around 70°F.

Wednesday night: Mostly clear, low of about 50°F.

Thursday: Sunny, high near 72°F.

Simi Valley forecast updated daily. Based on data from the National Weather Service, San Diego office and from WeatherCurrents.
Recently in Simi Valley
Date High Low Ave. Prec.
November 20 55°F 46°F 50°F 0.45"
November 19 61°F 41°F 50°F 0.00"
November 18 59°F 43°F 50°F 0.00"
November 17 57°F 49°F 54°F 0.98"
November 16 58°F 51°F 55°F 0.27"
November 15 61°F 53°F 57°F 2.52"
November 14 62°F 56°F 59°F 0.73"
More Past Weather
Simi Valley Featured Photos
Cloud Stream
Cloud Stream: As seen near the Santa Susana pass, from the 118 freeway. Photo courtesy of Gabe Medrano.
Simi Valley Weather News
Storm Totals: November 13th-17th, 2025

A series of very wet low pressure systems brought heavy rain and mountain s ...

Posted November 17, 2025, 2:59 PM
Other Weather Information

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