Jamestown, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jamestown, a city in Russell County, Kentucky.
Tonight
68°F
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 68. Northeast wind around 3 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Jamestown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph NE | 16% |
| Saturday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph SE | 17% |
| Saturday Night | 69°F | Mostly Clear | 3 mph SE | 14% |
| Sunday | 93°F | Mostly Sunny | 3 to 7 mph SW | 6% |
| Sunday Night | 69°F | Partly Cloudy | 3 mph S | 9% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 32% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 mph E | 46% |
| Tuesday | 83°F | Showers And Thunderstorms Likely | 6 mph N | 63% |
| Tuesday Night | 62°F | Showers And Thunderstorms Likely | 2 to 6 mph N | 63% |
| Wednesday | 79°F | Chance Rain Showers | 2 to 6 mph N | 45% |
| Wednesday Night | 59°F | Chance Rain Showers | 1 to 5 mph N | 40% |
| Thursday | 77°F | Slight Chance Rain Showers then Partly Sunny | 2 to 7 mph N | 15% |
| Thursday Night | 58°F | Partly Cloudy | 2 to 6 mph N | 11% |
| Friday | 77°F | Mostly Sunny | 2 to 8 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov) for Jamestown (36.991, -85.064). Updated through the day.
Growing snapshot for Jamestown
Last spring frost
Apr 18
First fall frost
Oct 24
Growing season
189 days
Hardiness zone
7a
More local growing data for Jamestown: nearby ZIP 42642 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jamestown Wwtp, Ky (4 mi from Jamestown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.