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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
Saturday, December 27, 2025
 Forecast not current
Conditions will be dry this weekend with warmer and breezier weather developing Sunday. A strong Santa Ana wind event is forecast Monday with slightly weaker winds on Tuesday. Clouds will then increase and a slight chance of rain will develop Wednesday. The new year will likely start off with quite a bit of rain. Today: Mostly sunny and breezy , high near 62°F . Pollen level is rated "medium". Predicted air quality is good, AQI: 44 (for Simi Valley and Moorpark (courtesy of the VCAPCD)). Tonight: Clear and cool. Offshore breezes, low around 42°F. Sunday: Sunny. Offshore breezes, high of about 62°F. Sunday night:Mostly clear and cool. Offshore breezes, low near 45°F. Monday: Sunny. Offshore winds, high around 63°F. Monday night: Clear and cool. Offshore breezes, low of about 47°F. Tuesday: Sunny. Offshore breezes, high near 67°F. Tuesday night: Partly cloudy and cool, low around 48°F. Wednesday: Mostly cloudy and cool. Chance of showers, mainly in the afternoon, high of about 66°F. Wednesday night: Mostly cloudy and cool. Chance of showers in the evening, then showers likely after midnight, low near 49°F. Thursday: Mostly cloudy. Showers likely, high around 63°F. Thursday night: Mostly cloudy and cool. Showers likely, low of about 49°F. Friday: Mostly cloudy. Showers likely, high near 65°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: December 23rd-27th, 2025
Several storm systems impacted Southern California during the week of Chris ... Posted December 28, 2025, 11:18 AMOther Weather Information
National Weather Service
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