Rosiclare, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosiclare, a city in Hardin County, Illinois.
Today
86°F
Sunny
Sunny. High near 86, with temperatures falling to around 84 in the afternoon. Northeast wind around 3 mph.
7-day forecast for Rosiclare
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 3 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph NNE | 0% |
| Wednesday | 89°F | Sunny | 1 mph SW | 0% |
| Wednesday Night | 68°F | Mostly Clear | 1 mph SSW | 0% |
| Thursday | 89°F | Mostly Sunny | 0 to 5 mph SSW | 13% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 2 mph S | 33% |
| Friday | 88°F | Chance Showers And Thunderstorms | 1 to 5 mph SSW | 38% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph WSW | 35% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 31% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SSW | 25% |
| Sunday | 90°F | Mostly Sunny | 1 to 6 mph SSW | 13% |
| Sunday Night | 71°F | Mostly Clear | 2 mph SSW | 8% |
| Monday | 91°F | Sunny | 2 to 6 mph SSW | 5% |
| Monday Night | 73°F | Mostly Clear | 1 to 5 mph SSW | 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 Aug 4, 2026.