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Nashua Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  |  |  |  |  | | |  | |
| Mostly Cloudy | Clearing | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Clear | Mostly Clear |
| Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Hi: 75°FHi: 24°C Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C Lo: 49°FLo: 9°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 331 PM MDT Tue Sep 15 2026 
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Issued: 1200 AM MDT Wed Sep 16 2026
Key Messages
- Showers moving east across southern Saskatchewan may briefly drop south across the International border briefly today.
- Gradual warmup is expected through Friday.
- Chances of widespread showers return Thursday night and exiting over the weekend. 0.50" to 1.00" amounts are possible.
Discussion
... SYNOPTIC SETUP:
An upper trough deepening along the Pacific NW coast is closing off over northern California while a northern stream trough is moving east across the Prairie Provinces. This troug...