Jonesboro, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jonesboro, a city in Grant County, Indiana.
This Afternoon
69°F
Mostly Cloudy
Mostly cloudy. High near 69, with temperatures falling to around 64 in the afternoon. West wind around 10 mph.
7-day forecast for Jonesboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Cloudy | 10 mph W | 5% |
| Tonight | 46°F | Mostly Cloudy | 5 to 10 mph SW | 9% |
| Thursday | 60°F | Mostly Cloudy | 10 to 15 mph SW | 7% |
| Thursday Night | 42°F | Chance Rain Showers | 5 to 10 mph W | 41% |
| Friday | 53°F | Chance Rain Showers | 5 to 10 mph NW | 39% |
| Friday Night | 33°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 39% |
| Saturday | 52°F | Mostly Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 29°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 57°F | Sunny | 0 to 10 mph W | 0% |
| Sunday Night | 31°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 61°F | Sunny | 0 to 10 mph W | 0% |
| Monday Night | 36°F | Clear | 5 mph SW | 0% |
| Tuesday | 62°F | Sunny | 5 mph W | 1% |
| Tuesday Night | 34°F | Mostly Clear | 0 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Jonesboro (40.480, -85.630). Updated through the day.
Growing snapshot for Jonesboro
Last spring frost
Apr 26
First fall frost
Oct 20
Growing season
175 days
Hardiness zone
6a
More local growing data for Jonesboro: nearby ZIP 46953 weather · frost dates · planting calendar · Indiana frost dates
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Climate data from the nearest NOAA station, Marion 2 N, In (4.2 mi from Jonesboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.