Weather WorldSimpsonville, NY Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Simpsonville Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  | | |  |  | | |  | | |
| Patchy Fog | Partly Sunny | Partly Cloudy | Partly Sunny | Patchy Fog | Showers | Chance of Showers | Partly Sunny | Partly Cloudy | Chance of Showers | Showers | Chance of Showers |
| Lo: 41°FLo: 5°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C |
| POP: 70% | POP: 40% | POP: 40% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 935 PM EDT Mon Sep 14 2026 
Simpsonville Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Simpsonville Weather Map
Simpsonville Quick Facts
Simpsonville Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 718 PM EDT Mon Sep 14 2026
Key Messages
1) High pressure in place with an upper level ridge building in through Wednesday keeping the region dry and gradually warming into mid week.
2) The ridge begins to flatten in the eastern US with a slightly more active pattern late week into the weekend.
Discussion
... KEY MESSAGE 1...
A strong surface high is building in today out of the northwest leading to good radiational cooling tonight. Dew points have fallen into the mid to low 40s which will likely match the low temperatures toni...