Cynthiana, IN Weather & Growing Conditions
This Afternoon
67°F
Mostly Cloudy
Mostly cloudy. High near 67, with temperatures falling to around 61 in the afternoon. West wind 8 to 13 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Mostly Cloudy | 8 to 13 mph W | 0% |
| Tonight | 47°F | Partly Cloudy | 2 to 6 mph WSW | 0% |
| Thursday | 64°F | Sunny | 3 to 10 mph WSW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 3 mph WNW | 1% |
| Friday | 57°F | Partly Sunny | 3 to 12 mph NNW | 1% |
| Friday Night | 36°F | Mostly Clear | 2 to 9 mph N | 0% |
| Saturday | 54°F | Sunny | 2 to 6 mph N | 0% |
| Saturday Night | 33°F | Mostly Clear | 2 mph NNW | 0% |
| Sunday | 58°F | Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 35°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph SSW | 0% |
| Monday Night | 38°F | Clear | 2 mph SW | 1% |
| Tuesday | 64°F | Sunny | 1 to 5 mph WSW | 1% |
| Tuesday Night | 40°F | Mostly Clear | 1 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cynthiana, IN
Last spring frost
Apr 13
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
7a
Explore more for Cynthiana, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Princeton 1 W, In (12.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.