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Madison Square Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  | | |  | | | | | | |
| Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Sunny | Mostly Clear | Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 90°FHi: 32°C |
| POP: 20% | POP: 50% | POP: 70% | POP: 70% | POP: 20% | POP: 40% | POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 742 PM EDT Thu Aug 20 2026 
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Madison Square Forecast Discussion
Issued: 724 PM EDT Thu Aug 20 2026
Key Messages
- 1) Heat remains a concern into Friday.
- 2) Increased risk for showers and thunderstorms into the weekend.
Discussion
... KEY MESSAGE 1: Heat remains a concern into Friday.
Friday: Mid-level troughing will dominate the east coast while a weak surface front approaches the local forecast area. Temperatures are still forecast to be above normal (mid 90s), but heat index values look to fall short of Heat Advisory criteria across most of the region. The only locat...