Roy Lake, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Roy Lake Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Chance of Rain | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Hi: 41°FHi: 5°C | Lo: 31°FLo: -1°C | Hi: 39°FHi: 4°C | Lo: 25°FLo: -4°C | Hi: 41°FHi: 5°C | Hi: 51°FHi: 11°C Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Lo: 35°FLo: 2°C |
| POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1101 AM CST Wed Nov 04 2026 

Roy Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Roy Lake Weather Map
Roy Lake Quick Facts
Roy Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1130 AM CST Wed Nov 4 2026
Key Messages
- More steady rain will continue through this afternoon over northeastern SD and west central MN.
- The chance for additional rainfall amounts of a half inch or more tonight through the day Wednesday is 45 to 70% along and east of the Sisseton Hills, with a 20 to 30% chance for an inch or more mainly east of I-29.
Discussion
... Issued at 1243 AM CST Wed Nov 4 2026
As of 12:30 am CST, temperatures across the area are in the upper 30s to low 40s with winds out of the north between 15 and 20 ...
Weather World