Cainsville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cainsville, a city in Mercer County, Missouri.
Overnight
47°F
Patchy Drizzle
Patchy drizzle before 4am. Cloudy, with a low around 47. West northwest wind around 13 mph, with gusts as high as 21 mph.
7-day forecast for Cainsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Drizzle | 13 mph WNW | 12% |
| Wednesday | 54°F | Mostly Cloudy | 12 to 16 mph W | 7% |
| Wednesday Night | 43°F | Mostly Cloudy | 9 mph W | 2% |
| Thursday | 54°F | Mostly Cloudy | 8 to 12 mph NW | 12% |
| Thursday Night | 42°F | Mostly Cloudy | 7 mph NNW | 7% |
| Friday | 52°F | Partly Sunny | 5 to 8 mph N | 3% |
| Friday Night | 32°F | Partly Cloudy | 0 to 3 mph NNE | 0% |
| Saturday | 54°F | Mostly Sunny | 0 to 3 mph SW | 0% |
| Saturday Night | 35°F | Mostly Clear | 2 mph W | 0% |
| Sunday | 60°F | Sunny | 5 mph W | 0% |
| Sunday Night | 37°F | Clear | 3 mph SW | 0% |
| Monday | 66°F | Sunny | 3 to 9 mph SSW | 0% |
| Monday Night | 42°F | Clear | 5 mph W | 0% |
| Tuesday | 66°F | Sunny | 5 mph NNW | 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.