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Arnold Arboretum Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  | | |  |  |  | | | |  |
| Chance of Showers | Clear | Sunny | Clear | Sunny | Partly Cloudy | Partly Sunny | Showers | Showers | Partly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C |
| POP: 30% | POP: 70% | POP: 70% | POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 402 AM EDT Thu Oct 08 2026 
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Issued: 214 AM EDT Thu Oct 8 2026
Key Messages
- Mostly dry weather prevails through Sunday with the exception of a few scattered showers Thursday. Highs consistently in the 60s after a warmer Thursday. Saturday morning may be frosty in spots.
- The next quick moving round of rain comes Sunday evening and overnight, exiting sometime on Monday though confidence in exact timing is low. Not expecting any flooding or damaging winds at this time.
Discussion
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KEY MESSAGE 1...Mostly dry weather prevails through Sunday with the exception of ...