Harrisonville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrisonville, a city in Cass County, Missouri.
Tonight
48°F
Cloudy
Cloudy, with a low around 48. West northwest wind 9 to 13 mph, with gusts as high as 21 mph.
7-day forecast for Harrisonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Cloudy | 9 to 13 mph WNW | 13% |
| Wednesday | 59°F | Partly Sunny | 7 to 12 mph W | 3% |
| Wednesday Night | 41°F | Mostly Clear | 5 mph W | 3% |
| Thursday | 59°F | Mostly Sunny | 3 to 7 mph WNW | 13% |
| Thursday Night | 41°F | Mostly Cloudy | 5 mph NNW | 3% |
| Friday | 57°F | Partly Sunny | 3 to 7 mph N | 2% |
| Friday Night | 38°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 59°F | Partly Sunny | 2 mph WNW | 2% |
| Saturday Night | 38°F | Mostly Clear | 2 mph W | 6% |
| Sunday | 65°F | Sunny | 5 mph W | 5% |
| Sunday Night | 39°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 68°F | Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph SW | 0% |
| Tuesday | 69°F | Sunny | 5 mph SSW | 0% |
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
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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 Nov 4, 2026.