Rosiclare, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosiclare, a city in Hardin County, Illinois.
Overnight
71°F
Mostly Clear
Mostly clear, with a low around 71. Wind around 0 mph.
7-day forecast for Rosiclare
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Mostly Clear | 0 mph | 2% |
| Saturday | 96°F | Sunny | 0 to 6 mph WSW | 2% |
| Saturday Night | 71°F | Mostly Clear | 2 mph SSW | 1% |
| Sunday | 95°F | Mostly Sunny | 2 to 6 mph SW | 0% |
| Sunday Night | 69°F | Partly Cloudy | 2 mph NNW | 7% |
| Monday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph NNE | 42% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 2 to 6 mph NNE | 45% |
| Tuesday | 77°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 45% |
| Tuesday Night | 57°F | Partly Cloudy | 2 to 8 mph N | 11% |
| Wednesday | 76°F | Mostly Sunny | 6 mph N | 4% |
| Wednesday Night | 55°F | Partly Cloudy | 1 to 5 mph N | 2% |
| Thursday | 77°F | Mostly Sunny | 2 to 6 mph N | 2% |
| Thursday Night | 56°F | Partly Cloudy | 1 to 5 mph NNE | 5% |
| Friday | 77°F | Mostly Sunny | 2 to 6 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Rosiclare (37.426, -88.352). Updated through the day.
Growing snapshot for Rosiclare
Last spring frost
Apr 19
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
7a
More local growing data for Rosiclare: nearby ZIP 62982 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rosiclare 5Nw, Il (4.3 mi from Rosiclare). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.