Currently 55°F in Simi Valley, California, USA
55°F
58°F / 55°F
3 mph NW
0.00"
Thursday, July 2, 2026 4:33 AM PDT
Simi Valley Forecast Summary
Today Tomorrow Saturday
Not Available Not Available Not Available
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High: N/A High: N/A High: N/A
Low: N/A Low: N/A Low: N/A
Currently in Simi Valley

Temperature, Humidity, Wind & Pressure

Time:  4:33 AM PDT
Temperature:  55°F
Normal Temperature 61°F
Relative Humidity:  86%
Dewpoint:  50°F
Heat Index:  55°F
Wind Chill:  55°F
Wind:  3 mph NW (330°)
Gusts:  5 mph
Barometer:  29.88" HgPressure Change falling

Sunrise & Sunset

Sunrise Sunset Daylight
Today: 5:43 AM 8:02 PM 14:20
Tomorrow: 5:43 AM 8:02 PM 14:19
30 Day Sunrise and Sunset Almanac

Extreme Temperatures

Today Time Normal Last Year
High: 58°F 12:02 AM 85°F 80°F
Low: 55°F 4:33 AM 60°F 54°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:
55°F
Simi Valley Forecast
Sunday, June 21, 2026
Alert Forecast not current

Below normal temperatures will continue through the weekend, with a deep marine layer, as well as gusty winds over the interior. A significant warming trend will start Monday and peak around Wednesday. A push of moisture midweek will bring at least a low chance of rain.

Today: Sunny. Afternoon breezes , high near 79°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. Light breezes, low around 55°F.

Monday: Sunny and warm. Afternoon breezes, high of about 82°F.

Monday night:Mostly clear. Light breezes, low near 57°F.

Tuesday: Low clouds and fog early, becoming sunny and warm, high around 87°F.

Tuesday night: Clear, low of about 58°F.

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

Wednesday night: Mostly clear, low around 62°F.

Thursday: Sunny and warm, high of about 85°F.

Thursday night: Mostly clear, low near 59°F.

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

Friday night: Mostly clear, low of about 56°F.

Saturday: Sunny, high near 78°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.
July 1 77°F 56°F 64°F 0.00"
June 30 75°F 59°F 66°F 0.00"
June 29 76°F 54°F 64°F 0.00"
June 28 74°F 58°F 65°F 0.00"
June 27 75°F 57°F 65°F 0.00"
June 26 77°F 57°F 65°F 0.00"
June 25 79°F 55°F 66°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
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Other Weather Information

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