Jonesboro, IL Weather & Growing Conditions
Overnight
57°F
Chance Rain Showers
A chance of rain showers before 3am. Mostly cloudy. Low around 57, with temperatures rising to around 59 overnight. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Chance Rain Showers | 7 to 10 mph SW | 25% |
| Wednesday | 66°F | Partly Sunny | 5 to 8 mph W | 6% |
| Wednesday Night | 46°F | Mostly Clear | 3 mph WSW | 0% |
| Thursday | 67°F | Sunny | 2 to 6 mph SW | 0% |
| Thursday Night | 47°F | Partly Cloudy | 3 mph WNW | 5% |
| Friday | 61°F | Partly Sunny | 3 to 8 mph NNW | 1% |
| Friday Night | 42°F | Partly Cloudy | 6 mph NNW | 1% |
| Saturday | 57°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 38°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 62°F | Sunny | 1 to 6 mph WNW | 5% |
| Sunday Night | 38°F | Mostly Clear | 2 mph NW | 5% |
| Monday | 64°F | Sunny | 1 to 6 mph W | 2% |
| Monday Night | 41°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 68°F | Sunny | 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jonesboro, IL
Last spring frost
Apr 8
First fall frost
Oct 29
Growing season
203 days
Hardiness zone
7a
Explore more for Jonesboro, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Anna 2 Nne, Il (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.