Weather WorldSully School, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Sully School Weather Forecast
| OVERNIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 | | | |  |  | | |  |  | | |
| Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Partly Cloudy | Partly Cloudy | Partly Cloudy | Clearing | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 31°FLo: -1°C | Hi: 41°FHi: 5°C | Lo: 25°FLo: -4°C | Hi: 45°FHi: 7°C | Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C | Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 132 AM CST Thu Nov 12 2026 
Sully School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Sully School Weather Map
Sully School Quick Facts
Sully School Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1033 PM MST Wed Nov 11 2026
Key Messages
- Areas of fog and low clouds late tonight into Thursday morning across western SD.
- Areas of fog may redevelop Thursday night into Friday morning, mainly around the Black Hills foothills and adjacent plains.
- Mild and dry into next week, breezy at times.
Discussion
...(This Evening Through Wednesday) Issued at 1233 PM MST Wed Nov 11 2026
Upper air analysis shows upper ridging over the western third of the CONUS, with northwest flow continuing across the northern Plains. Surface analysis sh...