Portsmouth, KY Weather & Growing Conditions
Overnight
60°F
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy, with a low around 60. Southeast wind around 7 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Slight Chance Light Rain | 7 mph SE | 21% |
| Wednesday | 69°F | Rain | 8 mph S | 100% |
| Wednesday Night | 54°F | Light Rain then Mostly Cloudy | 3 to 8 mph SW | 88% |
| Thursday | 69°F | Mostly Sunny | 3 to 7 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 3 mph SW | 0% |
| Friday | 65°F | Mostly Sunny | 1 to 6 mph W | 11% |
| Friday Night | 41°F | Mostly Cloudy | 6 mph NW | 11% |
| Saturday | 55°F | Mostly Sunny | 6 mph NW | 2% |
| Saturday Night | 36°F | Partly Cloudy | 3 mph NW | 0% |
| Sunday | 58°F | Mostly Sunny | 1 to 6 mph W | 2% |
| Sunday Night | 34°F | Mostly Clear then Patchy Frost | 3 mph W | 3% |
| Monday | 60°F | Patchy Frost then Sunny | 5 mph W | 3% |
| Monday Night | 37°F | Mostly Clear | 2 mph SW | 2% |
| Tuesday | 65°F | Sunny | 2 to 6 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portsmouth, KY
Last spring frost
Apr 17
First fall frost
Oct 25
Growing season
191 days
Hardiness zone
7a
Explore more for Portsmouth, KY: full frost dates · planting calendar · Kentucky frost dates
Climate data from the nearest NOAA station, Portsmouth-Sciotoville, Oh (7.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.