Currently 58°F in Simi Valley, California, USA
58°F
59°F / 44°F
2 mph E
0.00"
Wednesday, December 3, 2025 9:59 AM PST
Simi Valley Forecast Summary
Today Tomorrow Friday
Sunny Sunny Sunny
Sunny   Sunny   Sunny
High: 52°F High: 50°F High: 55°F
Low: 41°F Low: 37°F Low: 39°F
Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:  9:59 AM PST
Temperature:  58°F
Normal Temperature 62°F
Relative Humidity:  72%
Dewpoint:  48°F
Heat Index:  58°F
Wind Chill:  58°F
Wind:  2 mph E (108°)
Gusts:  10 mph
Barometer:  30.04" HgPressure Change rising

Sunrise & Sunset

Sunrise Sunset Daylight
Today: 6:36 AM 4:40 PM 10:03
Tomorrow: 6:37 AM 4:40 PM 10:02
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

Today Time Normal Last Year
High: 59°F 9:25 AM 68°F 70°F
Low: 44°F 6:26 AM 49°F 44°F

Precipitation

60 Min. Today Month Season
0.00" 0.00" 0.00" 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
Sunday, November 30, 2025
Alert Forecast not current

Cooler conditions will continue through the weekend with onshore flow. Warming is expected Monday as offshore flow returns with gusty Santa Ana winds. A cooling trend will develop Tuesday and Wednesday as a storm system approaches the region. There is a chance of rain Wednesday through Thursday.

Today: Sunny. Light breezes , high near 66°F .

Pollen level is rated "low".

Predicted air quality is moderate, AQI: 54 (for Simi Valley and Moorpark (courtesy of the VCAPCD)).

Tonight: Mostly clear. Cool and breezy, low around 40°F.

Monday: Sunny and cool. Light breezes, high of about 54°F.

Monday night:Mostly clear and cool. Light breezes, low near 40°F.

Tuesday: Sunny and cool. Light breezes, high around 56°F.

Tuesday night: Mostly clear. Cool and breezy, low of about 41°F.

Wednesday: Sunny and cool, high near 52°F.

Wednesday night: Mostly clear and cold, low around 37°F.

Thursday: Sunny and cool, high of about 50°F.

Thursday night: Mostly clear and cold, low near 39°F.

Friday: Sunny and cool, high around 55°F.

Friday night: Mostly clear and cool, low of about 43°F.

Saturday: Sunny and cool, high near 59°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.
December 2 69°F 47°F 57°F 0.00"
December 1 69°F 46°F 60°F 0.00"
November 30 66°F 45°F 54°F 0.00"
November 29 72°F 46°F 56°F 0.00"
November 28 74°F 48°F 59°F 0.00"
November 27 78°F 54°F 69°F 0.00"
November 26 77°F 65°F 70°F 0.00"
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 17th-22nd, 2025

Two weather systems swept across California last week; the first as a low p ...

Posted November 23, 2025, 10:53 PM
Other Weather Information

The Simi Valley, California weather pages are a service of WeatherCurrents.
Copyright ©Wed Dec 03 09:59:41 PST 2025  WeatherCurrents. All rights reserved. - Submit questions and comments - Privacy Policy

This page automatically refreshes every 10 minutes.