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Mechanicsville, SC Weather Forecast
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Mechanicsville Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  | | | | | |  |  | | |
| Mostly Clear | Sunny | Partly Cloudy | Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 80°FLo: 27°C | Hi: 99°FHi: 37°C | Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 90°FHi: 32°C |
| POP: 40% | POP: 50% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1208 AM EDT Mon Aug 17 2026 
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Mechanicsville Forecast Discussion
Issued: 728 PM EDT Sun Aug 16 2026
Key Messages
- 1. Dangerous heat continues into this week with highest temperatures expected Monday.
- 2. Storm coverage more limited Monday, then increasing chances the remainder of the week.
Discussion
... KEY MESSAGE 1: Dangerous heat continues into this week with highest temperatures expected Monday.
Upper ridging is expected to persist into early next week with continued above average temperatures expected. Heat Advisory remains in effect now through 8 pm Monday. A bit...