St. Joe, IN Weather & Growing Conditions
Tonight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Partly Cloudy | 5 mph E | 12% |
| Saturday | 75°F | Showers And Thunderstorms | 5 mph E | 90% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph S | 84% |
| Sunday | 73°F | Showers And Thunderstorms | 5 to 10 mph N | 81% |
| Sunday Night | 53°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 55% |
| Monday | 64°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 49% |
| Monday Night | 50°F | Chance Showers And Thunderstorms | 15 mph NE | 37% |
| Tuesday | 63°F | Slight Chance Rain Showers | 15 mph NE | 18% |
| Tuesday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Wednesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Wednesday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 15 mph NE | 16% |
| Thursday | 67°F | Mostly Cloudy | 5 to 10 mph N | 7% |
| Thursday Night | 51°F | Mostly Cloudy | 5 to 10 mph N | 6% |
| Friday | 69°F | Mostly Sunny | 5 to 10 mph N | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Joe, IN
Last spring frost
Apr 28
First fall frost
Oct 17
Growing season
170 days
Hardiness zone
6a
Explore more for St. Joe, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Hicksville, Oh (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.