Portsmouth, KY Weather & Growing Conditions
This Afternoon
88°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind around 2 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Slight Chance Showers And Thunderstorms | 2 mph S | 24% |
| Tonight | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 51% |
| Sunday | 90°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 22% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph E | 51% |
| Monday | 78°F | Chance Rain Showers | 6 mph NE | 43% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 6 mph NE | 52% |
| Tuesday | 76°F | Rain Showers Likely | 5 mph NE | 56% |
| Tuesday Night | 59°F | Showers And Thunderstorms Likely | 5 mph NE | 73% |
| Wednesday | 74°F | Showers And Thunderstorms Likely | 7 mph E | 74% |
| Wednesday Night | 56°F | Showers And Thunderstorms Likely | 6 mph E | 74% |
| Thursday | 72°F | Chance Showers And Thunderstorms | 6 mph E | 37% |
| Thursday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph NE | 24% |
| Friday | 73°F | Mostly Sunny | 2 to 6 mph N | 11% |
| Friday Night | 52°F | Partly Cloudy | 5 mph N | 11% |
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 Sep 20, 2026.