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

Currently 65°F in Simi Valley, California, USA

Wednesday, March 18, 2026 1:12 AM PDT

Simi Valley Forecast Summary

Today	Tomorrow	Friday

Sunny, Hot	Sunny, Hot	Sunny, Hot
High: 97°F	High: 99°F	High: 97°F
Low: 74°F	Low: 74°F	Low: 75°F

Complete Forecast Text Below

Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:	1:12 AM PDT
Temperature:	65°F
Normal Temperature :	53°F
Relative Humidity:	53%
Dewpoint:	47°F
Heat Index:	65°F
Wind Chill:	65°F
Wind:	calm
Gusts:	1 mph
Barometer:	29.95" Hg rising

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:56 AM	6:59 PM	12:03
Tomorrow:	6:54 AM	7:00 PM	12:06
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	67°F	12:01 AM	70°F	66°F
Low:	65°F	1:11 AM	49°F	38°F

Precipitation

60 Min.	Today	Month	Season
0.00"	0.00"	0.00"	19.38"
Season began July 1, 2025
Past Season Precipitation Totals

Data captured from a Peet Bros. Ultimeter 2100

Local Weather Roundup

Simi Valley:

65°F

Complete Local Weather Roundup

Simi Valley Forecast

Sunday, March 15, 2026

Forecast not current

A significant heat wave will kick off today, peaking next Tuesday and Wednesday and then continuing through Friday. Moderate to high heat impacts will occur each day Monday through Friday.

Today: Sunny and very warm. Light breezes , high near 90°F .

Pollen level is rated "medium-high".

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

Tonight: Clear. Light breezes, low around 63°F.

Monday: Sunny and very warm. Light breezes, high of about 94°F.

Monday night:Mostly clear. Light breezes, low near 65°F.

Tuesday: Sunny and hot. Light breezes, high around 97°F.

Tuesday night: Mostly clear, low of about 74°F.

Wednesday: Sunny and hot, high near 97°F.

Wednesday night: Clear, low around 74°F.

Thursday: Sunny and hot, high of about 99°F.

Thursday night: Clear, low near 75°F.

Friday: Sunny and hot, high around 97°F.

Friday night: Clear, low of about 63°F.

Saturday: Sunny and very warm, high near 93°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.
March 17	96°F	66°F	80°F	0.00"
March 16	91°F	56°F	74°F	0.00"
March 15	89°F	52°F	69°F	0.00"
March 14	81°F	55°F	67°F	0.00"
March 13	90°F	62°F	73°F	0.00"
March 12	88°F	62°F	75°F	0.00"
March 11	76°F	47°F	60°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

Major heat spell to bring potential record heat to region

Strong high pressure, in addition to weak offshore flow, is slated to bring ...

Posted March 11, 2026, 4:44 AM

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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