Pinon Hills Forecast Summary
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Data captured from a Peet Bros. Ultimeter 2100
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Pinon Hills Forecast
Sunday, September 7, 2025
![]() Expect mostly clear skies and very warm temperatures today in the region. There's a slight chance of mountain and desert slope showers and thunderstorms this afternoon. A pattern shift is set to occur on Monday, as an upper-level trough is predicted to develop in the northeast Pacific and stall out over California by the middle of the week. Expect breezy winds, significantly below average temperatures and a deeper marine layer. Temperatures will begin a rebound into next weekend. Today: Sunny and warm. Light breezes , high near 87°F . Pollen level is rated "medium". Predicted air quality is good, AQI: 50 (for the Central San Bernardino Valley courtesy of the SCAQMD). Tonight: Clear. Light breezes, low around 64°F. Monday: Sunny and warm. Light breezes, high of about 85°F. Monday night:Clear. Light breezes, low near 59°F. Tuesday: Sunny and warm. Light breezes, high around 80°F. Tuesday night: Mostly clear. Light breezes, low of about 54°F. Wednesday: Sunny, high near 75°F. Wednesday night: Mostly clear, low around 54°F. Thursday: Sunny, high of about 75°F. Thursday night: Clear, low near 55°F. Friday: Sunny, high around 78°F. Friday night: Clear, low of about 60°F. Saturday: Sunny and warm, high near 83°F. Pinon Hills forecast updated daily. Based on data from the National Weather Service, San Diego office and from WeatherCurrents.Recently in
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