Weather WorldCastle Rock Lake, WI Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Castle Rock Lake Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  | | |  |  |  | |  | | |  |
| Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 80°FHi: 27°C | Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 731 AM CDT Thu Aug 27 2026 
Castle Rock Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Castle Rock Lake Weather Map
Castle Rock Lake Quick Facts
Castle Rock Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 535 AM CDT Thu Aug 27 2026
Key Messages
- Dry through Friday, precipitation and storm chances increase through the weekend.
- Low confidence (<15%) for storms mostly Sunday and Monday.
Discussion
... Issued at 1229 AM CDT Thu Aug 27 2026
Precipitation & Storm Chances Increase Through The Weekend:
Dry conditions expected through the rest of the work week as eventual low level moisture transport excites through the Central Plains overnight Friday into Saturday, poking through southwest into central Minnesota. Similar to previous forecasts, the GEFS long term global ensemble...