Blackwater, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blackwater, a city in Cooper County, Missouri.
Tonight
46°F
Patchy Drizzle
Patchy drizzle before 4am. Cloudy, with a low around 46. West southwest wind around 9 mph. Chance of precipitation is 20%.
7-day forecast for Blackwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Patchy Drizzle | 9 mph WSW | 15% |
| Wednesday | 59°F | Mostly Cloudy | 7 to 12 mph W | 6% |
| Wednesday Night | 37°F | Mostly Clear | 5 mph WSW | 1% |
| Thursday | 59°F | Mostly Sunny | 5 to 8 mph W | 10% |
| Thursday Night | 37°F | Mostly Cloudy | 3 mph NW | 7% |
| Friday | 57°F | Partly Sunny | 6 mph NNW | 2% |
| Friday Night | 34°F | Mostly Cloudy | 2 mph N | 1% |
| Saturday | 58°F | Partly Sunny | 2 mph WNW | 3% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph W | 5% |
| Sunday | 64°F | Sunny | 1 to 5 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 2 mph WSW | 2% |
| Monday | 67°F | Sunny | 2 to 8 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 69°F | Sunny | 3 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Blackwater (38.979, -92.992). Updated through the day.
Growing snapshot for Blackwater
Last spring frost
Apr 5
First fall frost
Oct 29
Growing season
206 days
Hardiness zone
6b
More local growing data for Blackwater: nearby ZIP 65322 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Boonville, Mo (11.1 mi from Blackwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.