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Three Rivers School Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
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| Rain | Chance of T-Storm | Patchy Fog | Showers | Chance of T-Storm | Chance of Showers | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Partly Sunny | Mostly Clear |
| Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C |
| POP: 90% | POP: 50% | POP: 100% | POP: 90% | POP: 50% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 249 AM EDT Tue Sep 01 2026 
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Issued: 255 AM EDT Tue Sep 1 2026
Key Messages
1. Low pressure tracking along a stationary front will provide a focus for clouds and rain today, mainly across south-central NH and SW Maine.
2. An unsettled pattern brings the best chance for widespread rainfall late Wednesday and Thursday.
3. A gradual drying trend follows for Friday and Labor Day weekend.
Discussion
... KEY MESSAGE 1 DESCRIPTION...
Expect a crisp morning with lows mainly in the mid 40s north to the mid 50s elsewhere. The one exception will be southern New Hampshire an...