Currently 54°F in Simi Valley, California, USA
54°F
55°F / 54°F
1 mph SE
0.00"
Tuesday, May 5, 2026 1:21 AM PDT
Simi Valley Forecast Summary
Today Tomorrow Thursday
Mostly sunny, Breezy Sunny Sunny
Mostly sunny, Breezy   Sunny   Sunny
High: 67°F High: 75°F High: 82°F
Low: 49°F Low: 50°F Low: 54°F
Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:  1:21 AM PDT
Temperature:  54°F
Normal Temperature 57°F
Relative Humidity:  82%
Dewpoint:  49°F
Heat Index:  54°F
Wind Chill:  54°F
Wind:  1 mph SE (122°)
Gusts:  4 mph
Barometer:  29.93" HgPressure Change falling

Sunrise & Sunset

Sunrise Sunset Daylight
Today: 5:55 AM 7:33 PM 13:39
Tomorrow: 5:54 AM 7:34 PM 13:40
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

Today Time Normal Last Year
High: 55°F 12:57 AM 75°F N/A
Low: 54°F 1:21 AM 53°F N/A

Precipitation

60 Min. Today Month Season
0.00" 0.00" 0.00" 20.68"
Season began July 1, 2025
Past Season Precipitation Totals
Data captured from a Peet Bros. Ultimeter 2100
Local Weather Roundup
Simi Valley:
54°F
Simi Valley Forecast
Sunday, May 3, 2026
Alert Forecast not current

Conditions will remain cool on Monday and Tuesday with a slight chance of drizzle or a light shower. Gusty onshore winds are expected Tuesday afternoon. Dry and warmer conditions are likely Wednesday through next weekend.

Today: Partly sunny and breezy , high near 64°F .

Pollen level is rated "medium".

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

Tonight: Mostly cloudy and breezy, low around 52°F.

Monday: Mostly sunny and breezy, high of about 66°F.

Monday night:Mostly cloudy and cool. Evening breezes, low near 49°F.

Tuesday: Mostly sunny. Afternoon breezes, high around 67°F.

Tuesday night: Mostly clear. Evening breezes, low of about 50°F.

Wednesday: Sunny, high near 75°F.

Wednesday night: Clear, low around 54°F.

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

Thursday night: Clear, low near 56°F.

Friday: Sunny and warm, high around 83°F.

Friday night: Clear, low of about 57°F.

Saturday: Sunny and warm, high near 85°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.
May 4 67°F 52°F 58°F 0.00"
May 3 64°F 55°F 58°F 0.00"
May 2 77°F 51°F 66°F 0.00"
May 1 76°F 51°F 62°F 0.00"
April 30 73°F 50°F 61°F 0.00"
April 29 75°F 48°F 64°F 0.00"
April 28 73°F 46°F 58°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
Storm Totals: April 25th-26th, 2026

A late-season Pacific storm brought cool temperatures and showers to the re ...

Posted April 27, 2026, 9:14 AM
Other Weather Information

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