St. Henry, OH Weather & Growing Conditions
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. Northeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 8 mph NE | 1% |
| Tonight | 56°F | Partly Cloudy then Patchy Fog | 5 to 8 mph E | 3% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 7 mph SE | 69% |
| Saturday Night | 65°F | Showers And Thunderstorms Likely | 6 mph S | 71% |
| Sunday | 78°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 70% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 9 to 14 mph NE | 70% |
| Monday | 69°F | Showers And Thunderstorms Likely | 10 to 14 mph NE | 57% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 10 to 16 mph NE | 48% |
| Tuesday | 68°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 36% |
| Tuesday Night | 55°F | Chance Rain Showers | 7 to 15 mph NE | 27% |
| Wednesday | 69°F | Slight Chance Rain Showers | 10 mph NE | 24% |
| Wednesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 17% |
| Thursday | 70°F | Mostly Cloudy | 6 to 9 mph N | 10% |
| Thursday Night | 53°F | Mostly Cloudy | 3 to 9 mph N | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Henry, OH
Last spring frost
Apr 27
First fall frost
Oct 19
Growing season
175 days
Hardiness zone
6a
Explore more for St. Henry, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Celina 3 Ne, Oh (12.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.