Weather WorldOld McCormick Town Reservoir, SC Weather Forecast
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Old McCormick Town Reservoir Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy |
| Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C |
| POP: 20% | POP: 60% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 307 AM EDT Thu Aug 20 2026 
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Old McCormick Town Reservoir Forecast Discussion
Issued: 237 AM EDT Thu Aug 20 2026
Key Messages
- 1. Severe weather and flash flooding possible Friday.
Discussion
... KEY MESSAGE 1: Severe weather and flash flooding possible Friday.
Upper troughing amplifies over the eastern US Friday promoting SW flow into the forecast area. PWAT values rise to near or above 2 inches by the afternoon as surface low pressure develops near the area. Convergence along a surface boundary over the Carolinas will serve as the focus for thunderstorms in the afternoon as the a...