Montclair High School, CA Weather Forecast
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Montclair High School Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Sunny | Clear | Mostly Sunny | Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Hi: 96°FHi: 36°C | Lo: 66°FLo: 19°C | Hi: 96°FHi: 36°C | Lo: 66°FLo: 19°C | Hi: 95°FHi: 35°C | Lo: 66°FLo: 19°C | Hi: 93°FHi: 34°C | Lo: 65°FLo: 18°C | Hi: 86°FHi: 30°C | Lo: 59°FLo: 15°C | Hi: 84°FHi: 29°C | Lo: 58°FLo: 14°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1209 AM PDT Wed Sep 23 2026 

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Issued: 245 AM PDT Wed Sep 23 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
.SHORT TERM (Today through Friday)... A weak upper level low pressure system off the coast of northern Baja will bring weak easterly winds to the mountains for this morning and again Thursday morning with gusts less than 25 mph. This will also bring some mid-level monsoonal moisture northward into the area for this afternoon and Thursday afternoon with the...
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