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Pinon Hills Forecast Summary
Currently in Pinon Hills
Temperature, Humidity, Wind & Pressure
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Data captured from a Peet Bros. Ultimeter 2100
Local Weather Roundup
Pinon Hills Forecast
Friday, September 4, 2026
Patchy marine layer is expected overnight and in the morning, as high level clouds from Tropical Cyclone Marie move over the area this weekend. Periods of light to locally moderate precipitation are possible Saturday and Sunday. There's a slight chance of thunderstorms on Sunday afternoon, mainly over the San Bernardino Mountains and High Desert. Warmer and drier conditions will follow Monday and Tuesday. A slight chance of mountain showers and thunderstorms returns for the middle of the week. Today: Sunny and warm. Afternoon breezes , high near 83°F . Pollen level is rated "medium-high". Predicted air quality is good, AQI: 49 (for the Central San Bernardino Valley courtesy of the SCAQMD). Tonight: Clear and breezy, low around 58°F. Saturday: Sunny and warm. Afternoon breezes, high of about 84°F. Saturday night:Increasing clouds. Light breezes. 30 percent chance of showers after midnight, low near 63°F. Sunday: Mostly cloudy, becoming mostly sunny. Warm and breezy. 60 percent chance of showers. Slight chance of thunderstorms in the afternoon, high around 78°F. Sunday night: Mostly clear, low of about 62°F. Monday: Sunny and warm, high near 85°F. Monday night: Mostly clear, low around 65°F. Tuesday: Mostly sunny and warm. Slight chance of showers, high of about 86°F. Tuesday night: Partly cloudy. Chance of showers, mainly in the evening, low near 68°F. Wednesday: Mostly sunny and warm. Chance of showers, high around 87°F. Wednesday night: Partly cloudy, low of about 68°F. Thursday: Mostly sunny and warm. Slight chance of showers, high near 86°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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Tropical moisture associated with Hurricane Marie could bring showers this weekend
A broad upper level trough positioned over the West Coast is bringing not o ... Posted September 3, 2026, 10:30 PM
Late August heat wave made worse by high dew points
The recent stretch of exceptionally hot days across Southern California, ha ... Posted August 31, 2026, 11:57 PMOther Weather Information
National Weather Service
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