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Richardson Preparatory High School Weather Warning NWS WEATHER ALERT FOR THE RICHARDSON PREPARATORY HIGH SCHOOL, CA AREA - Issued: 1156 AM PDT Tue Aug 18 2026 Richardson Preparatory High School Weather Warning

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Richardson Preparatory High School, CA Weather Forecast

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Richardson Preparatory High School, CA Weather Forecast

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Richardson Preparatory High School CA weather - Clear - 100°F
Clear
100°F
Updated 5:01 pm
Feels Like 93°F
Humidity 10%
Wind W 6 mph
Barometer  29.9 in
Dew Point 35°F
Richardson Preparatory High School CA weather - Clear - 38°C
Clear
38°C
Updated 5:01 pm
Feels Like 34°C
Humidity 10%
Wind W 10 km/h
Barometer  101.2 kPa
Dew Point 2°C
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Richardson Preparatory High School Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
Richardson Preparatory High School, CA Weather - Tonight Mostly Clear Richardson Preparatory High School, CA Weather - Wednesday Mostly Sunny Richardson Preparatory High School, CA Weather - Wednesday Night Mostly Clear Richardson Preparatory High School, CA Weather - Thursday Partly Cloudy Richardson Preparatory High School, CA Weather - Thursday Night Partly Cloudy Richardson Preparatory High School, CA Weather - Friday Partly Cloudy Richardson Preparatory High School, CA Weather - Friday Night Mostly Clear Richardson Preparatory High School, CA Weather - Saturday Mostly Sunny Richardson Preparatory High School, CA Weather - Saturday Night Mostly Clear Richardson Preparatory High School, CA Weather - Sunday Chance Of Showers Richardson Preparatory High School, CA Weather - Sunday Night Mostly Clear Richardson Preparatory High School, CA Weather - Monday Mostly Sunny
Mostly Clear Mostly Sunny Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Sunny Mostly Clear Chance of Showers Mostly Clear Mostly Sunny
Lo: 69°FLo: 21°C Hi: 103°FHi: 39°C
 Lo: 70°FLo: 21°C Hi: 102°FHi: 39°C
 Lo: 70°FLo: 21°C Hi: 101°FHi: 38°C
 Lo: 69°FLo: 21°C Hi: 99°FHi: 37°C
 Lo: 69°FLo: 21°C Hi: 98°FHi: 37°C
 Lo: 68°FLo: 20°C Hi: 98°FHi: 37°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1151 AM PDT Tue Aug 18 2026 Richardson Preparatory High School, CA Weather - WeatherWorld.com

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Richardson Preparatory High School Forecast Discussion

Issued: 421 PM PDT Tue Aug 18 2026

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...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

...UPDATED AVIATION DISCUSSION...

This afternoon, scattered high clouds are streaming in from the Pacific, caught in the broader clockwise high pressure flow across much of the western US. Temperatures are running generally 1 to 4 degrees F warmer than yesterday with more 100 degree readings expected across the Inland Empire an...