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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
Sunday, April 19, 2026
Expect cooler conditions west of the mountains today as onshore flow returns. A low pressure system moving into California will lead to cooler and breezier conditions Monday through the middle of the week. There's a slight chance of precipitation Tuesday afternoon into Wednesday morning. Cool weather and breezy onshore flow are predicted to persist into next weekend. Today: Sunny and breezy , high near 76°F . Pollen level is rated "medium-high". Predicted air quality is moderate, AQI: 87 (for the Central San Bernardino Valley courtesy of the SCAQMD). Tonight: Mostly clear. Cool and breezy, low around 48°F. Monday: Sunny. Afternoon breezes, high of about 74°F. Monday night:Mostly clear and cool. Evening breezes, low near 47°F. Tuesday: Increasing clouds. Breezy. 20 percent chance of showers in the afternoon, high around 64°F. Tuesday night: Partly cloudy. Cool and breezy, low of about 40°F. Wednesday: Sunny, high near 61°F. Wednesday night: Mostly clear and cool, low around 42°F. Thursday: Sunny, high of about 68°F. Thursday night: Partly cloudy and cool, low near 47°F. Friday: Sunny, high around 68°F. Friday night: Mostly clear and cool, low of about 47°F. Saturday: Mostly sunny, high near 65°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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Overnight showers possible as low pressure brings first rains in over a month
Cloudy skies and a deep marine layer loomed over Southern California on Tue ... Posted March 31, 2026, 10:34 PMOther Weather Information
National Weather Service
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