Simi Valley Weather Pages - Current and Past Weather, Forecasts and News for Simi Valley, California

Currently 51°F in Simi Valley, California, USA

Wednesday, December 17, 2025 5:28 AM PST

Simi Valley Forecast Summary

Today	Tomorrow	Friday

Sunny	Sunny	Sunny
High: 82°F	High: 82°F	High: 78°F
Low: 54°F	Low: 55°F	Low: 55°F

Complete Forecast Text Below

Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:	5:28 AM PST
Temperature:	51°F
Normal Temperature :	50°F
Relative Humidity:	75%
Dewpoint:	43°F
Heat Index:	51°F
Wind Chill:	51°F
Wind:	calm
Gusts:	none
Barometer:	30.03" Hg falling

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:47 AM	4:42 PM	9:55
Tomorrow:	6:47 AM	4:43 PM	9:55
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	55°F	12:00 AM	65°F	74°F
Low:	51°F	5:28 AM	46°F	46°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:

51°F

Complete Local Weather Roundup

Simi Valley Forecast

Sunday, December 14, 2025

Forecast not current

Well above normal temperatures will continue in most areas through next week. The next chance of rain will be the week of Christmas.

Today: Sunny. Light breezes , high near 74°F .

Pollen level is rated "low-medium".

Predicted air quality is good, AQI: 50 (for Simi Valley and Moorpark (courtesy of the VCAPCD)).

Tonight: Clear and cool. Light breezes, low around 47°F.

Monday: Sunny and warm. Offshore breezes, high of about 81°F.

Monday night:Mostly clear and cool. Offshore breezes, low near 49°F.

Tuesday: Sunny and warm. Light breezes, high around 83°F.

Tuesday night: Mostly clear, low of about 54°F.

Wednesday: Sunny and warm, high near 82°F.

Wednesday night: Clear, low around 55°F.

Thursday: Sunny and warm, high of about 82°F.

Thursday night: Mostly clear, low near 55°F.

Friday: Sunny, high around 78°F.

Friday night: Partly cloudy, low of about 52°F.

Saturday: Mostly sunny, high near 72°F.

Complete Forecast Page

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 16	77°F	53°F	64°F	0.00"
December 15	79°F	49°F	66°F	0.00"
December 14	72°F	46°F	57°F	0.00"
December 13	74°F	46°F	57°F	0.00"
December 12	79°F	50°F	62°F	0.00"
December 11	85°F	57°F	71°F	0.00"
December 10	82°F	68°F	74°F	0.00"
More Past Weather

Simi Valley Featured Photos

Cloud Stream: As seen near the Santa Susana pass, from the 118 freeway. Photo courtesy of Gabe Medrano.

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Simi Valley Weather News

Warm, dry December weather enters its third week

Stubborn high pressure over the southwestern states has brought the return ...

Posted December 16, 2025, 11:01 PM

More Simi Valley Weather News

Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

Other Simi Valley Weather Forecasts

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