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Walnut High School Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Chance of Showers | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Partly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear |
| Hi: 76°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 80°FHi: 27°C | Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 90°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 90°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 93°FHi: 34°C | Lo: 65°FLo: 18°C | |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Mon Sep 21 2026 
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Issued: 241 AM PDT Mon Sep 21 2026
Aviation
...21/0940Z.
At 0832Z at KLAX, the marine layer was 1900 ft deep. The top of the inversion was at 4900 ft with a temperature of 19 C.
High confidence in VFR conds for KPMD & KWJF.
Low to moderate confidence in the remaining sites. The timing of CIG and any VSBY restrictions may be off 2 hrs and flight minimums by one category. Cigs may bounce between categories. There is a 10 percent chance of -DZ through 18Z.
KLAX...Moderate confidence in TAF. Cigs may vary between 015 and 030 through 18Z. ...