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| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  | |  | |  |  | | | | | |
| Chance of Showers | Showers | Chance of Showers | Chance of Showers | Chance of Showers | Thunderstorms | Thunderstorms | Thunderstorms | Thunderstorms | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 70°FLo: 21°C | Hi: 76°FHi: 24°C | Lo: 70°FLo: 21°C | Hi: 76°FHi: 24°C | Lo: 69°FLo: 21°C | Hi: 75°FHi: 24°C | Lo: 68°FLo: 20°C | Hi: 75°FHi: 24°C | Lo: 67°FLo: 19°C | |||
| POP: 70% | POP: 90% | POP: 70% | POP: 80% | POP: 80% | POP: 80% | POP: 80% | POP: 80% | POP: 80% | POP: 70% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 300 AM HST Mon Sep 21 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 301 AM HST Mon Sep 21 2026
Discussion
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Attention going forward is on the time frame spanning Wednesday into the weekend. Uncertainty is running significantly higher than normal as Former TD-15-E lurks well southeast of the islands and presents as a disorganized area of showers and thunderstorms. General consensus exists that activity will organize during the first half of this week and advance in the general direction of the Big Island thereafter. Initially, uncertainty in system movement likely stems from the current la...