Grantville, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grantville, a community in Jefferson County, Kansas.
Today
92°F
Mostly Sunny
Mostly sunny, with a high near 92. Southeast wind around 5 mph.
7-day forecast for Grantville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Mostly Sunny | 5 mph SE | 8% |
| Tonight | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph E | 19% |
| Wednesday | 83°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 41% |
| Wednesday Night | 65°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph NE | 73% |
| Thursday | 85°F | Showers And Thunderstorms Likely then Mostly Sunny | 0 to 5 mph E | 73% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 44% |
| Friday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 44% |
| Friday Night | 70°F | Mostly Clear | 5 mph S | 7% |
| Saturday | 92°F | Sunny | 5 to 10 mph S | 7% |
| Saturday Night | 74°F | Mostly Clear | 10 mph S | 1% |
| Sunday | 94°F | Sunny | 10 to 15 mph S | 1% |
| Sunday Night | 75°F | Mostly Clear | 10 to 15 mph S | 2% |
| Monday | 95°F | Sunny | 10 to 15 mph S | 2% |
| Monday Night | 76°F | Mostly Clear | 10 to 15 mph S | 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 Aug 4, 2026.