Rantoul, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rantoul, a city in Franklin County, Kansas.
Tonight
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 68. Southwest wind 0 to 10 mph. Chance of precipitation is 50%.
7-day forecast for Rantoul
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Chance Showers And Thunderstorms | 0 to 10 mph SW | 53% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 49% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 5 mph N | 35% |
| Monday | 74°F | Mostly Cloudy | 5 to 10 mph N | 14% |
| Monday Night | 55°F | Mostly Cloudy | 5 to 10 mph N | 4% |
| Tuesday | 70°F | Partly Sunny | 5 mph N | 2% |
| Tuesday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 72°F | Mostly Sunny | 0 to 5 mph NE | 1% |
| Wednesday Night | 53°F | Partly Cloudy | 0 to 5 mph E | 4% |
| Thursday | 76°F | Slight Chance Rain Showers | 0 to 5 mph SE | 23% |
| Thursday Night | 59°F | Chance Rain Showers | 0 to 5 mph E | 26% |
| Friday | 79°F | Chance Rain Showers | 0 to 5 mph E | 30% |
| Friday Night | 61°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph E | 15% |
| Saturday | 81°F | Slight Chance Rain Showers | 5 mph E | 19% |
Forecast source: National Weather Service (api.weather.gov) for Rantoul (38.548, -95.101). Updated through the day.
Growing snapshot for Rantoul
Last spring frost
Apr 14
First fall frost
Oct 25
Growing season
192 days
Hardiness zone
6b
More local growing data for Rantoul: nearby ZIP 66079 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Osawatomie, Ks (9.3 mi from Rantoul). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.