Alton, KY Weather & Growing Conditions
This Afternoon
71°F
Slight Chance Drizzle
A slight chance of drizzle after 5pm. Mostly cloudy, with a high near 71. Southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Slight Chance Drizzle | 10 mph SW | 5% |
| Tonight | 45°F | Slight Chance Drizzle | 2 to 7 mph W | 3% |
| Thursday | 66°F | Sunny | 3 to 9 mph SW | 0% |
| Thursday Night | 41°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Friday | 60°F | Partly Sunny | 1 to 8 mph NW | 0% |
| Friday Night | 33°F | Partly Cloudy | 2 to 8 mph N | 0% |
| Saturday | 55°F | Sunny | 2 to 6 mph N | 0% |
| Saturday Night | 30°F | Mostly Clear | 0 to 3 mph N | 0% |
| Sunday | 58°F | Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 31°F | Mostly Clear | 0 to 3 mph NW | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 33°F | Clear | 2 mph SW | 0% |
| Tuesday | 63°F | Sunny | 5 mph SW | 0% |
| Tuesday Night | 35°F | Mostly Clear | 2 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alton, KY
Last spring frost
Apr 19
First fall frost
Oct 24
Growing season
186 days
Hardiness zone
7a
Explore more for Alton, KY: full frost dates · planting calendar · Kentucky frost dates
Climate data from the nearest NOAA station, Brandenburg, Ky (15.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.