Currently 54°F in Simi Valley, California, USA
54°F / 54°F
Wednesday, March 21, 2018 12:16 AM PDT
Simi Valley Forecast Summary
Today Tomorrow Friday
Rain, Cloudy Rain, Cloudy Partly sunny, Chance of showers
Rain, Cloudy   Rain, Cloudy   Partly sunny, Chance of showers
High: 61°F High: 61°F High: 60°F
Low: 52°F Low: 53°F Low: 48°F
Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:  12:16 AM PDT
Temperature:  54°F
Normal Temperature 54°F
Relative Humidity:  82%
Dewpoint:  48°F
Heat Index:  54°F
Wind Chill:  54°F
Wind:  calm
Gusts:  none
Barometer:  29.97" HgPressure Change falling

Sunrise & Sunset

Sunrise Sunset Daylight
Today: 6:51 AM 7:00 PM 12:10
Tomorrow: 6:49 AM 7:01 PM 12:12
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

Today Time Normal Last Year
High: 54°F 12:15 AM 71°F 59°F
Low: 54°F 12:01 AM 49°F 54°F


60 Min. Today Month Season
0.00" 0.00" 3.10" 5.61"
Season began July 1, 2017
Past Season Precipitation Totals
Data captured from a Peet Bros. Ultimeter 2100
Local Weather Roundup
Simi Valley:
Simi Valley Forecast
Tuesday, March 20, 2018

Increasing clouds, mild afternoon temperatures and a slight chance of rain are predicted today in Simi Valley. A strong storm system is approaching from the north, with a subtropical tap. Some light to moderate rain may be possible today, with the main part of the storm striking Wednesday and Thursday, followed by showers Friday morning. Rainfall will be heavy at times on Wednesday and Thursday, with three to four inches of precipitation predicted locally, enough for flash flooding. Snow levels in the local mountains will be high, above 9,000 feet.

Temperatures will slowly warm through the weekend, remaining below normal.

Today: Mostly cloudy. 20 percent chance of rain in the afternoon , high near 66°F .

Pollen level is rated "medium-high".

Predicted air quality is good, AQI: 40 (for Simi Valley and Moorpark (courtesy of the VCAPCD)).

Tonight: Cloudy. 65 percent chance of rain in the evening, then an 85 percent chance of rain after midnight, low around 52°F.

Wednesday: Cloudy. 85 percent chance of rain, heavy at times, high of about 61°F.

Wednesday night:Cloudy. 85 percent chance of rain, heavy at times, low near 53°F.

Thursday: Cloudy. 100 percent chance of rain, heavy at times, high around 61°F.

Thursday night: Mostly cloudy. Cool. 45 percent chance of showers, low of about 48°F.

Friday: Partly sunny. 15 percent chance of showers, high near 60°F.

Friday night: Mostly clear. Cool, low around 45°F.

Saturday: Sunny, high of about 61°F.

Saturday night: Mostly clear. Cool, low near 47°F.

Sunday: Mostly sunny, high around 63°F.

Sunday night: Mostly clear. Cool, low of about 44°F.

Monday: Mostly sunny, high near 65°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.
March 20 68°F 49°F 58°F 0.07"
March 19 74°F 41°F 56°F 0.00"
March 18 65°F 40°F 51°F 0.00"
March 17 59°F 44°F 51°F 0.00"
March 16 59°F 46°F 51°F 0.25"
March 15 63°F 45°F 53°F 0.43"
March 14 61°F 51°F 55°F 0.21"
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
Another round of showers early Saturday morning

Two bands of rain are being swept into the region Saturday, one having pass ...

Posted March 17, 2018, 10:36 PM
Storm Totals: March 13th-15th, 2018 (updated)

Low pressure parked off the coast of California has been sending multiple b ...

Posted March 16, 2018, 2:01 AM
Other Weather Information

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