Leavenworth, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Leavenworth, a city in Leavenworth County, Kansas.
Today
91°F
Mostly Sunny
Mostly sunny, with a high near 91. Heat index values as high as 97. South wind around 5 mph.
7-day forecast for Leavenworth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Mostly Sunny | 5 mph S | 12% |
| Tonight | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph E | 22% |
| Wednesday | 84°F | Chance Showers And Thunderstorms | 6 mph NE | 47% |
| Wednesday Night | 66°F | Showers And Thunderstorms Likely | 6 mph NNE | 72% |
| Thursday | 84°F | Showers And Thunderstorms Likely then Mostly Sunny | 3 mph NE | 72% |
| Thursday Night | 67°F | Partly Cloudy then Chance Showers And Thunderstorms | 3 mph ESE | 27% |
| Friday | 88°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph S | 27% |
| Friday Night | 70°F | Mostly Clear | 3 mph S | 12% |
| Saturday | 92°F | Sunny | 3 to 9 mph S | 11% |
| Saturday Night | 74°F | Mostly Clear | 10 mph S | 1% |
| Sunday | 94°F | Sunny | 12 mph SSW | 1% |
| Sunday Night | 75°F | Mostly Clear | 12 mph S | 3% |
| Monday | 95°F | Mostly Sunny | 13 mph SSW | 3% |
| Monday Night | 76°F | Mostly Clear | 12 mph SSW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Leavenworth (39.323, -94.925). Updated through the day.
Growing snapshot for Leavenworth
Last spring frost
Apr 12
First fall frost
Oct 27
Growing season
196 days
Hardiness zone
6b
More local growing data for Leavenworth: nearby ZIP 66027 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Leavenworth, Ks (2.5 mi from Leavenworth). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.