Millersburg, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millersburg, a city in Bourbon County, Kentucky.
Overnight
68°F
Mostly Cloudy
Mostly cloudy, with a low around 68. East wind around 3 mph.
7-day forecast for Millersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Mostly Cloudy | 3 mph E | 3% |
| Saturday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph SE | 25% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 40% |
| Sunday | 90°F | Mostly Sunny | 8 mph SW | 10% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 6 mph N | 35% |
| Monday | 80°F | Chance Rain Showers | 8 mph NE | 43% |
| Monday Night | 58°F | Showers And Thunderstorms Likely | 5 to 9 mph NE | 57% |
| Tuesday | 74°F | Chance Rain Showers | 7 mph NE | 45% |
| Tuesday Night | 58°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 53% |
| Wednesday | 73°F | Showers And Thunderstorms Likely | 6 mph N | 56% |
| Wednesday Night | 56°F | Showers And Thunderstorms Likely | 2 to 6 mph N | 56% |
| Thursday | 72°F | Partly Sunny | 3 to 7 mph N | 13% |
| Thursday Night | 54°F | Mostly Cloudy | 2 to 7 mph N | 13% |
| Friday | 72°F | Mostly Sunny | 3 to 8 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Millersburg (38.305, -84.143). Updated through the day.
Growing snapshot for Millersburg
Last spring frost
Apr 18
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
6b
More local growing data for Millersburg: nearby ZIP 40348 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cynthiana, Ky (9.9 mi from Millersburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.