Royalton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Royalton, a village in Franklin County, Illinois.
Today
88°F
Sunny
Sunny, with a high near 88. Northeast wind 0 to 3 mph.
7-day forecast for Royalton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 0 to 3 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph E | 0% |
| Wednesday | 91°F | Sunny | 2 mph SSW | 0% |
| Wednesday Night | 69°F | Partly Cloudy | 2 mph S | 5% |
| Thursday | 90°F | Chance Showers And Thunderstorms | 2 to 7 mph SSW | 29% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 5 mph SSE | 58% |
| Friday | 89°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph SW | 58% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 3 mph SSW | 42% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 1 to 5 mph SSW | 42% |
| Saturday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SSW | 15% |
| Sunday | 92°F | Sunny | 3 to 9 mph SSW | 7% |
| Sunday Night | 72°F | Mostly Clear | 3 to 9 mph SSW | 5% |
| Monday | 94°F | Sunny | 5 to 10 mph SSW | 5% |
| Monday Night | 74°F | Mostly Clear | 6 to 9 mph SSW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Royalton (37.878, -89.114). Updated through the day.
Growing snapshot for Royalton
Last spring frost
Apr 6
First fall frost
Oct 22
Growing season
199 days
Hardiness zone
7a
More local growing data for Royalton: nearby ZIP 62983 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Benton
Buckner
Christopher
Ewing
Hanaford
Macedonia
Mulkeytown
North City
Orient
Sesser
Thompsonville
Valier
West City
West Frankfort
Zeigler
Climate data from the nearest NOAA station, Du Quoin 4 Se, Il (7.8 mi from Royalton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.