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Nashua High School Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  |  |  | |  |  |  | | |  | |
| Chance of Showers | Chance of Showers | Partly Sunny | Patchy Fog | Patchy Fog | Clearing | Mostly Sunny | Mostly Clear | Partly Sunny | Chance of Showers | Showers | Showers |
| Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C |
| POP: 30% | POP: 20% | POP: 50% | POP: 70% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 216 PM EDT Tue Aug 18 2026 
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Nashua High School Forecast Discussion
Issued: 221 PM EDT Tue Aug 18 2026
Key Messages
1. Some instability may lead to an isolated shower across the interior this afternoon. The next few nights will be foggy and Wednesday should stay mostly dry.
2. A weak boundary may bring a few showers Thursday, but otherwise mostly dry conditions are forecast through at least the first part of Saturday with seasonable temperatures.
3. The next chance for rain on a widespread basis arrives for the second half of the weekend.
Discussion
... KEY MESSAGE 1 DESC...