Petersburg, KY Weather & Growing Conditions
Today
67°F
Rain
Rain and a slight chance of thunderstorms. Cloudy, with a high near 67. South wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Rain | 8 to 14 mph S | 99% |
| Tonight | 49°F | Mostly Cloudy | 5 to 8 mph SW | 13% |
| Thursday | 65°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 2 to 6 mph SW | 0% |
| Friday | 59°F | Partly Sunny then Slight Chance Light Rain | 1 to 8 mph W | 15% |
| Friday Night | 38°F | Slight Chance Light Rain then Mostly Cloudy | 7 mph NW | 15% |
| Saturday | 55°F | Mostly Sunny | 7 mph NW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph NW | 0% |
| Sunday | 58°F | Sunny | 2 to 7 mph W | 1% |
| Sunday Night | 33°F | Mostly Clear | 2 to 6 mph W | 2% |
| Monday | 61°F | Sunny | 1 to 6 mph SW | 2% |
| Monday Night | 36°F | Mostly Clear | 5 mph SW | 1% |
| Tuesday | 65°F | Sunny | 7 mph SW | 1% |
| Tuesday Night | 37°F | Mostly Clear | 1 to 5 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Petersburg, KY
Last spring frost
Apr 13
First fall frost
Oct 31
Growing season
197 days
Hardiness zone
6b
Explore more for Petersburg, KY: full frost dates · planting calendar · Kentucky frost dates
Climate data from the nearest NOAA station, Cincinnati-Fernbank, Oh (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.