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

Currently 56°F in Simi Valley, California, USA

Monday, March 30, 2026 1:30 AM PDT

Simi Valley Forecast Summary

Today	Tomorrow	Wednesday

Sunny, Breezy	Cloudy	Mostly sunny
High: 79°F	High: 72°F	High: 73°F
Low: 50°F	Low: 55°F	Low: 54°F

Complete Forecast Text Below

Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:	1:30 AM PDT
Temperature:	56°F
Normal Temperature :	52°F
Relative Humidity:	55%
Dewpoint:	39°F
Heat Index:	56°F
Wind Chill:	56°F
Wind:	calm
Gusts:	none
Barometer:	29.90" Hg falling

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	6:38 AM	7:07 PM	12:28
Tomorrow:	6:37 AM	7:08 PM	12:30
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	57°F	12:01 AM	72°F	60°F
Low:	56°F	1:30 AM	48°F	49°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:

56°F

Complete Local Weather Roundup

Simi Valley Forecast

Sunday, March 29, 2026

Today will be the last day of very warm temperatures, especially inland the the beaches, with fog common along the coast. Cooling will begin Monday, with near normal temperatures Tuesday through Thursday. Gusty onshore winds are predicted and light rain is possible. Expect warmer and drier conditions to follow Friday and Saturday with weak to moderate offshore winds.

Today: Sunny. Warm and breezy , high near 87°F .

Pollen level is rated "medium-high".

Predicted air quality is moderate, AQI: 56 (for Simi Valley and Moorpark (courtesy of the VCAPCD)).

Tonight: Clear. Light breezes, low around 50°F.

Monday: Sunny and breezy, high of about 79°F.

Monday night:Increasing clouds, then patchy fog developing. Light breezes, low near 55°F.

Tuesday: Patchy fog, otherwise cloudy. Light breezes, high around 72°F.

Tuesday night: Mostly cloudy. 20 percent chance of showers, low of about 54°F.

Wednesday: Mostly sunny, high near 73°F.

Wednesday night: Partly cloudy, low around 52°F.

Thursday: Mostly sunny, high of about 71°F.

Thursday night: Mostly clear and cool, low near 49°F.

Friday: Sunny, high around 74°F.

Friday night: Clear, low of about 52°F.

Saturday: Sunny, high near 79°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 29	87°F	53°F	67°F	0.00"
March 28	84°F	51°F	65°F	0.00"
March 27	86°F	56°F	67°F	0.00"
March 26	81°F	52°F	66°F	0.00"
March 25	80°F	51°F	64°F	0.00"
March 24	82°F	52°F	65°F	0.00"
March 23	80°F	56°F	67°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

Record-breaking March heat wave will peak Thursday-Friday

As an unusually intense area of high pressure sits over the Western U.S., t ...

Posted March 19, 2026, 2:27 PM

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Other Weather Information

Temperature, Humidity, Wind & Pressure

Sunrise & Sunset

Extreme Temperatures

Precipitation

National Weather Service

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