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Williamsburg Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 74°FHi: 23°C | Lo: 53°FLo: 12°C | Hi: 79°FHi: 26°C | Lo: 57°FLo: 14°C | Hi: 77°FHi: 25°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Lo: 57°FLo: 14°C | Hi: 76°FHi: 24°C | Lo: 53°FLo: 12°C | Hi: 73°FHi: 23°C | Lo: 52°FLo: 11°C |
| POP: 20% | POP: 20% | POP: 70% | POP: 70% | POP: 70% | POP: 30% | POP: 40% | POP: 70% | POP: 30% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 637 AM MDT Tue Sep 15 2026 
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Issued: 544 AM MDT Tue Sep 15 2026
Key Messages
- Cold front this morning with cooler temperatures this afternoon. Thunderstorms look to remain confined to the higher terrain.
- Multiple waves Wednesday through Friday will combine with abundant moisture to produce thunderstorms with heavy rain, especially for the southern Mountains.
- Some uncertainty for the weekend into early next week with the pattern evolution.
Aviation
/12Z TAFS THROUGH 12Z WEDNESDAY/... Issued at 543 AM MDT Tue Sep 15 2026
KCOS and KPUB: VFR conditions are expected o...