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

Currently 90°F in Simi Valley, California, USA

Sunday, July 19, 2026 4:03 PM PDT

Simi Valley Forecast Summary

Today	Tomorrow	Tuesday

Mostly sunny, Breezy	Mostly sunny	Sunny
High: 87°F	High: 87°F	High: 88°F
Low: 62°F	Low: 61°F	Low: 62°F

Complete Forecast Text Below

Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:	4:03 PM PDT
Temperature:	90°F
Normal Temperature :	84°F
Relative Humidity:	28%
Dewpoint:	52°F
Heat Index:	88°F
Wind Chill:	90°F
Wind:	7 mph SW (239°)
Gusts:	14 mph
Barometer:	29.82" Hg falling

Sunrise & Sunset

	Sunrise	Sunset	Daylight
Today:	5:50 AM	7:56 PM	14:06
Tomorrow:	5:51 AM	7:56 PM	14:05
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

	Today	Time	Normal	Last Year
High:	90°F	4:00 PM	87°F	82°F
Low:	65°F	6:19 AM	61°F	60°F

Precipitation

60 Min.	Today	Month	Season
0.00"	0.00"	0.00"	0.00"
Season began July 1, 2026
Past Season Precipitation Totals

Data captured from a Peet Bros. Ultimeter 2100

Local Weather Roundup

Simi Valley:

90°F

Complete Local Weather Roundup

Simi Valley Forecast

Saturday, July 18, 2026

Today's forecast is coming soon

Temperatures will change little over the next few days, and most areas will be near normal. Morning low clouds and fog will return to many coastal areas into early next week. A warming trend is expected by the middle of the week, as upper level high pressure builds into the area while onshore gradients weaken.

Today: Mostly sunny and warm. Light breezes , high near 89°F .

Pollen level is rated "low-medium".

Predicted air quality is moderate, AQI: 54 (for Simi Valley and Moorpark (courtesy of the VCAPCD)).

Tonight: Mostly clear. Light breezes, low around 62°F.

Sunday: Mostly sunny and warm. Afternoon breezes, high of about 87°F.

Sunday night:Mostly clear. Light breezes, low near 61°F.

Monday: Mostly sunny and warm. Light breezes, high around 87°F.

Monday night: Mostly clear. Light breezes, low of about 62°F.

Tuesday: Sunny and warm, high near 88°F.

Tuesday night: Mostly clear, low around 63°F.

Wednesday: Sunny and very warm, high of about 90°F.

Wednesday night: Mostly clear, low near 65°F.

Thursday: Sunny and very warm, high around 91°F.

Thursday night: Mostly clear, low of about 64°F.

Friday: Sunny and very warm, high near 90°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.
July 18	89°F	64°F	77°F	0.00"
July 17	91°F	65°F	77°F	0.00"
July 16	93°F	68°F	80°F	0.00"
July 15	95°F	68°F	82°F	0.00"
July 14	91°F	66°F	78°F	0.00"
July 13	89°F	65°F	76°F	0.00"
July 12	88°F	65°F	74°F	0.00"
More Past Weather