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Simi Valley Forecast Summary
Currently in Simi Valley
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Data captured from a Peet Bros. Ultimeter 2100
Local Weather Roundup
Simi Valley Forecast
Sunday, October 11, 2026
 Today's forecast is coming soon
Moderate to damaging coastal flooding will likely continue through at least Tuesday. Periods of light to moderate rain and a slight chance of thunderstorms will persist through Monday with below normal temperatures. Beginning Tuesday and continuing through the end of the week, weak to moderate offshore flow will bring warm and dry conditions to the area. Today: Variably cloudy and breezy , high near 72°F . Pollen level is rated "medium". Predicted air quality is good, AQI: 39 (for Simi Valley and Moorpark (courtesy of the VCAPCD)). Tonight: Mostly cloudy and breezy. 50 percent chance of showers, mainly after midnight, low around 55°F. Monday: Mostly cloudy. Light breezes. 50 percent chance of showers, high of about 65°F. Monday night:Mostly cloudy and cool. Light breezes, low near 49°F. Tuesday: Sunny. Light breezes, high around 73°F. Tuesday night: Clear and breezy, low of about 56°F. Wednesday: Sunny, high near 79°F. Wednesday night: Clear, low around 57°F. Thursday: Sunny. Warm and breezy, high of about 86°F. Thursday night: Clear and breezy, low near 64°F. Friday: Sunny. Warm and breezy, high around 88°F. Friday night: Clear and breezy, low of about 65°F. Saturday: Sunny and warm, high near 88°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
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Cloud Stream: As seen near the Santa Susana pass, from the 118 freeway. Photo courtesy of Gabe Medrano.
Simi Valley
Weather News
Remnants of Hurricane Rachel bring widespread rain and wind over weekend
Remnants from former Hurricane Rachel in the Pacific impacted Southern Cali ... Posted October 11, 2026, 9:35 PMOther Weather Information
National Weather Service
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