Cainsville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cainsville, a city in Mercer County, Missouri.
Tonight
47°F
Chance Rain Showers then Cloudy
A chance of rain showers before 10pm. Cloudy, with a low around 47. West northwest wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
7-day forecast for Cainsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Chance Rain Showers then Cloudy | 13 mph WNW | 26% |
| Wednesday | 55°F | Mostly Cloudy | 12 to 16 mph W | 9% |
| Wednesday Night | 42°F | Mostly Cloudy | 9 mph W | 3% |
| Thursday | 55°F | Mostly Cloudy then Chance Rain Showers | 7 to 12 mph WNW | 27% |
| Thursday Night | 41°F | Mostly Cloudy | 7 mph NNW | 8% |
| Friday | 54°F | Partly Sunny | 3 to 8 mph N | 3% |
| Friday Night | 36°F | Mostly Cloudy | 2 mph NNW | 1% |
| Saturday | 57°F | Partly Sunny | 1 to 5 mph WSW | 1% |
| Saturday Night | 37°F | Mostly Clear | 3 mph W | 5% |
| Sunday | 62°F | Sunny | 6 mph W | 2% |
| Sunday Night | 39°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 66°F | Sunny | 5 to 12 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 66°F | Mostly Sunny | 3 to 7 mph NNE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Cainsville (40.440, -93.775). Updated through the day.
Growing snapshot for Cainsville
Last spring frost
Apr 25
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
5b
More local growing data for Cainsville: nearby ZIP 64632 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Princeton, Mo (10.8 mi from Cainsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.