Joslin, IL Weather & Growing Conditions
This Afternoon
68°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 15 mph S | 93% |
| Tonight | 52°F | Showers And Thunderstorms Likely | 10 to 15 mph S | 72% |
| Wednesday | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph SW | 24% |
| Wednesday Night | 45°F | Mostly Cloudy | 15 mph SW | 13% |
| Thursday | 55°F | Chance Rain Showers | 10 to 15 mph W | 47% |
| Thursday Night | 42°F | Chance Rain Showers | 5 to 10 mph NW | 27% |
| Friday | 52°F | Partly Sunny | 10 mph N | 13% |
| Friday Night | 34°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph W | 4% |
| Sunday | 58°F | Mostly Sunny | 5 to 10 mph W | 11% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 3% |
| Monday | 63°F | Sunny | 5 to 15 mph SW | 1% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Joslin, IL
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
5b
Explore more for Joslin, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Le Claire L&D 14, Ia (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.