Grantville, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grantville, a community in Jefferson County, Kansas.
This Afternoon
67°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 67, with temperatures falling to around 56 in the afternoon. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
7-day forecast for Grantville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms Likely | 10 to 15 mph W | 55% |
| Tonight | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 15 mph NW | 18% |
| Wednesday | 62°F | Partly Sunny | 5 to 15 mph W | 0% |
| Wednesday Night | 41°F | Mostly Clear | 0 to 5 mph W | 1% |
| Thursday | 60°F | Chance Rain Showers then Partly Sunny | 0 to 10 mph NW | 26% |
| Thursday Night | 39°F | Partly Cloudy | 5 mph NW | 2% |
| Friday | 59°F | Mostly Sunny | 5 mph N | 0% |
| Friday Night | 38°F | Mostly Cloudy | 0 mph | 0% |
| Saturday | 62°F | Partly Sunny | 0 to 5 mph W | 5% |
| Saturday Night | 39°F | Mostly Clear | 0 mph | 7% |
| Sunday | 63°F | Sunny | 0 to 10 mph W | 5% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph SW | 2% |
| Monday | 69°F | Sunny | 0 to 5 mph SW | 2% |
| Monday Night | 43°F | Mostly Clear | 0 to 5 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Grantville (39.081, -95.561). Updated through the day.
Growing snapshot for Grantville
Last spring frost
Apr 12
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6b
More local growing data for Grantville: nearby ZIP 66429 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Topeka Muni Ap, Ks (5.1 mi from Grantville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.