Grafton, MA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Grafton Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT |
| Mostly Cloudy | Chance of Showers | Chance of Showers | Sunny | Patchy Fog | Patchy Fog | Chance of Showers | Mostly Sunny | Mostly Clear | Clear | Clear | Mostly Clear |
| Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C |
| POP: 20% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 404 PM EDT Thu Oct 01 2026 

Grafton Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Grafton Weather Map
Grafton Quick Facts
Grafton Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 255 PM EDT Thu Oct 1 2026
Key Messages
- Late taste of summer Friday with highs around 80, followed by showers and a few thunderstorms Friday night.
- Cooler and drier Saturday, followed by a chilly Saturday night.
- Watching if a wave of low pressure tracks far enough north to bring a period of showers sometime Sun into Sun night.
- Coolest air of the season works into the region Mon night-Wed. Areas of frost expected Tue night/early Wed AM. Dry weather for most if not all of the next work week.
Discussion
... KEY MESSAGE 1...Late...
Weather World