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Rock Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  |  |  | | | | |  | | |  |
| Chance of T-Storm | Chance of Showers | Sunny | Partly Cloudy | Chance of T-Storm | Chance of Showers | Mostly Sunny | Partly Cloudy | Chance of Showers | Showers Likely | Chance of T-Storm | Chance of T-Storm |
| Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C |
| POP: 20% | POP: 20% | POP: 40% | POP: 40% | POP: 50% | POP: 60% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 235 PM EDT Tue Aug 18 2026 
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Rock Lake Forecast Discussion
Issued: 129 AM EDT Wed Aug 19 2026
Key Messages
1) Potential for periods of rain Thursday through the weekend. Impacts appear to be limited at this time.
Discussion
... .KEY MESSAGE 1... A cold front approaches Wednesday and pushes through Wednesday night. It will then stall over or near the area through the weekend. Shortwave energy pivoting through the base of a longwave trough will likely generate multiple waves of low pressure that will move along the stalled front. Exact location of this front will...