Currently 78°F in Simi Valley, California, USA
78°F / 57°F
4 mph NW
Friday, September 24, 2021 1:47 PM PDT
Simi Valley Forecast Summary
Today Tomorrow Sunday
Mostly sunny Mostly sunny, Breezy Sunny
Mostly sunny   Mostly sunny, Breezy   Sunny
High: 91°F High: 89°F High: 81°F
Low: 59°F Low: 58°F Low: 58°F
Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:  1:47 PM PDT
Temperature:  78°F
Normal Temperature 84°F
Relative Humidity:  47%
Dewpoint:  55°F
Heat Index:  79°F
Wind Chill:  78°F
Wind:  4 mph NW (298°)
Gusts:  12 mph
Barometer:  29.86" HgPressure Change falling

Sunrise & Sunset

Sunrise Sunset Daylight
Today: 6:38 AM 6:43 PM 12:05
Tomorrow: 6:39 AM 6:41 PM 12:03
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

Today Time Normal Last Year
High: 78°F 12:10 PM 86°F 87°F
Low: 57°F 5:43 AM 59°F 58°F


60 Min. Today Month Season
0.00" 0.00" 0.00" 0.00"
Season began July 1, 2021
Past Season Precipitation Totals
Data captured from a Peet Bros. Ultimeter 2100
Local Weather Roundup
Simi Valley:
Simi Valley Forecast
Thursday, September 23, 2021
Warning Today's forecast is coming soon

A cooling trend will continue today as onshore flow strengthens ahead of an area of low pressure over the Great Basin. This trough will back into the region through the weekend and a cooling trend will likely linger. Another area of low pressure will keep temperatures below normal through the middle of next week.

Today: Sunny. Warm and breezy , high near 86°F .

Pollen level is rated "medium".

Predicted air quality is good, AQI: 45 (for Simi Valley and Moorpark (courtesy of the VCAPCD)).

Tonight: Mostly clear. Light breezes, low around 59°F.

Friday: Mostly sunny and very warm. Light breezes, high of about 91°F.

Friday night:Partly cloudy, low near 58°F.

Saturday: Mostly sunny and warm. Afternoon breezes, high around 89°F.

Saturday night: Mostly clear, low of about 58°F.

Sunday: Sunny and warm, high near 81°F.

Sunday night: Mostly clear, low around 56°F.

Monday: Sunny and warm, high of about 80°F.

Monday night: Mostly cloudy, then patchy fog developing, low near 55°F.

Tuesday: Low clouds and fog early, becoming mostly sunny, high around 76°F.

Tuesday night: Mostly cloudy, low of about 53°F.

Wednesday: Mostly sunny, high near 75°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.
September 23 84°F 61°F 71°F 0.00"
September 22 91°F 65°F 76°F 0.00"
September 21 98°F 59°F 77°F 0.00"
September 20 87°F 57°F 70°F 0.00"
September 19 79°F 53°F 65°F 0.00"
September 18 76°F 51°F 61°F 0.00"
September 17 80°F 51°F 62°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
Scattered thunderstorms light up the skies Tuesday morning

Yet another incursion of monsoonal moisture over Southern California brough ...

Posted September 1, 2021, 10:17 PM
Other Weather Information

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