Harrisonville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrisonville, a city in Cass County, Missouri.
Tonight
74°F
Partly Cloudy
Partly cloudy, with a low around 74. Heat index values as high as 103. South wind around 7 mph.
7-day forecast for Harrisonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 74°F | Partly Cloudy | 7 mph S | 1% |
| Saturday | 97°F | Sunny | 7 to 12 mph SSW | 2% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 3 to 8 mph WSW | 55% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 5 mph W | 50% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 6 mph NNE | 63% |
| Monday | 75°F | Showers And Thunderstorms Likely | 3 to 9 mph NNE | 61% |
| Monday Night | 57°F | Mostly Cloudy | 5 to 8 mph NNE | 12% |
| Tuesday | 70°F | Partly Sunny | 8 mph NNE | 5% |
| Tuesday Night | 51°F | Mostly Cloudy | 3 to 7 mph NE | 2% |
| Wednesday | 73°F | Mostly Sunny | 6 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph ENE | 4% |
| Thursday | 75°F | Slight Chance Rain Showers | 5 mph ENE | 16% |
| Thursday Night | 58°F | Mostly Cloudy | 3 mph ENE | 9% |
| Friday | 76°F | Slight Chance Rain Showers | 2 to 6 mph E | 16% |
Forecast source: National Weather Service (api.weather.gov) for Harrisonville (38.652, -94.347). Updated through the day.
Growing snapshot for Harrisonville
Last spring frost
Apr 8
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
6b
More local growing data for Harrisonville: nearby ZIP 64701 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Archie
Baldwin Park
Belton
Cleveland
Creighton
Drexel
East Lynne
Freeman
Garden City
Gunn City
La Tour
Lake Annette
Peculiar
Pleasant Hill
Raymore
Riverview Estates
Strasburg
West Line
Climate data from the nearest NOAA station, Pleasant Hill Wfo, Mo (13.3 mi from Harrisonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.