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Simi Valley Forecast Summary
Currently in Simi Valley
Temperature, Humidity, Wind & Pressure
Sunrise & Sunset
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Data captured from a Peet Bros. Ultimeter 2100
Local Weather Roundup
Simi Valley Forecast
Saturday, October 18, 2025
 Forecast not current
Very nice weather will continue into early next week with maximum temperatures within five degrees of normal for most of the region through Monday. Dense coastal fog will be possible Sunday and Monday mornings. Then a weak upper low will swing across Southern California Wednesday, bringing cooler weather and a chance of drizzle or light rain. There is another chance of rain next weekend. Today: Sunny and warm. Light breezes , high near 85°F . Pollen level is rated "low-medium". Predicted air quality is moderate, AQI: 55 (for Simi Valley and Moorpark (courtesy of the VCAPCD)). Tonight: Mostly clear. Light breezes, low around 59°F. Sunday: Sunny and warm. Light breezes, high of about 82°F. Sunday night:Mostly clear. Light breezes, low near 56°F. Monday: Sunny and warm. Light breezes, high around 81°F. Monday night: Clear, low of about 54°F. Tuesday: Sunny, high near 79°F. Tuesday night: Mostly cloudy, low around 52°F. Wednesday: Mostly sunny, high of about 70°F. Wednesday night: Mostly clear, low near 51°F. Thursday: Sunny, high around 76°F. Thursday night: Mostly clear, low of about 53°F. Friday: Sunny, high near 77°F. Simi Valley forecast updated daily. Based on data from the National Weather Service, San Diego office and from WeatherCurrents.Recently in
Simi Valley
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Simi Valley
Featured Photos
Cloud Stream: As seen near the Santa Susana pass, from the 118 freeway. Photo courtesy of Gabe Medrano.
Simi Valley
Weather News
Storm Totals: October 14th-15th, 2025
A Pacific low pressure system brought widespread rain and windy conditions ... Posted October 15, 2025, 11:05 PMOther Weather Information
National Weather Service
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