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Walnut High School Weather Forecast
| OVERNIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  | |  |  | |  | | | | | |
| Partly Cloudy | Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny |
| Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C |
| POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 126 AM CDT Sun Sep 20 2026 
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Issued: 1037 PM CDT Sat Sep 19 2026
Key Messages
Issued at 1036 PM CDT Sat Sep 19 2026- Well above normal temperatures and predominantly dry weather is expected to continue through Monday with highs in the upper 90s to around 100 degrees.
- A weak cold front will bring isolated to scattered showers and thunderstorms early week. Widespread rainfall is not expected.
- A cooling trend is expected by Wednesday, decreasing temperatures from near-record values to closer to normal for late September.
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