St. Bernard, OH Weather & Growing Conditions
This Afternoon
89°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5pm, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 89. West wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 89°F | Chance Showers And Thunderstorms | 8 mph W | 60% |
| Tonight | 69°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 3 to 7 mph S | 72% |
| Sunday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 9 mph SW | 33% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 9 mph N | 58% |
| Monday | 75°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 54% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 6 to 12 mph NE | 54% |
| Tuesday | 75°F | Chance Rain Showers | 6 to 9 mph NE | 36% |
| Tuesday Night | 60°F | Chance Rain Showers | 3 to 10 mph NE | 45% |
| Wednesday | 74°F | Showers And Thunderstorms Likely | 3 to 8 mph NE | 59% |
| Wednesday Night | 58°F | Showers And Thunderstorms Likely | 3 to 9 mph NE | 59% |
| Thursday | 74°F | Slight Chance Rain Showers | 5 to 8 mph NE | 21% |
| Thursday Night | 57°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 8 mph NE | 16% |
| Friday | 74°F | Partly Sunny | 3 to 8 mph NE | 6% |
| Friday Night | 55°F | Partly Cloudy | 3 to 7 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Bernard, OH
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
6b
Explore more for St. Bernard, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Cincinnati Lunken Ap, Oh (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.