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Jamestown Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  |  |  |  | | | | | |
| Chance of Showers | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C |
| POP: 30% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 549 PM EDT Tue Sep 22 2026 
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Issued: 752 PM EDT Tue Sep 22 2026
Key Messages
1) Cooler weather will prevail through the week. More drizzle and a few light showers will occur tonight into Wednesday.
Discussion
... KEY MESSAGE 1) A weak inverted sfc trough will slowly eke wwd overnight, at the same time an upper low approaches the region from the nw. Best dynamics from the upper low look to be south of the forecast area as the low moves toward the IN/OH/KY region in the afternoon.
Showers are expected to develop in central OH and move west. Cannot rule out a bit o...