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Nashua Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  |  | | |  | | |  | | |
| Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Hi: 75°FHi: 24°C Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C Lo: 45°FLo: 7°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C |
| POP: 90% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 357 PM MDT Sun Sep 13 2026 
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Issued: 258 PM MDT Sun Sep 13 2026
Key Messages
- Likely scattered rain showers and embedded thunderstorms beginning around midnight and lasting through tomorrow evening.
- Winds will reach Lake Wind Advisory Criteria today and tomorrow. Wave heights will have the potential to reach 4 to 5 ft tomorrow afternoon.
- Slight chances for rain showers are possible Tuesday night into Wednesday morning. Confidence in rain amounts is low.
Discussion
... Synoptic Setup: A weak ridge is over the western Great Plains and a closed upper- level low has...