Cosby, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cosby, a village in Andrew County, Missouri.
Tonight
45°F
Cloudy
Cloudy, with a low around 45. West northwest wind 14 to 18 mph, with gusts as high as 24 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cosby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Cloudy | 14 to 18 mph WNW | 14% |
| Wednesday | 56°F | Mostly Cloudy | 10 to 16 mph W | 8% |
| Wednesday Night | 40°F | Partly Cloudy | 8 mph W | 3% |
| Thursday | 56°F | Partly Sunny then Slight Chance Rain Showers | 7 to 12 mph WNW | 20% |
| Thursday Night | 40°F | Mostly Cloudy | 8 mph NNW | 6% |
| Friday | 55°F | Partly Sunny | 3 to 7 mph N | 4% |
| Friday Night | 37°F | Mostly Cloudy | 2 mph NNW | 0% |
| Saturday | 59°F | Mostly Sunny | 1 to 5 mph SW | 2% |
| Saturday Night | 38°F | Mostly Clear | 2 mph W | 6% |
| Sunday | 64°F | Sunny | 2 to 6 mph W | 5% |
| Sunday Night | 40°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 68°F | Sunny | 5 to 13 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 68°F | Sunny | 3 to 7 mph ENE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Cosby (39.864, -94.680). Updated through the day.
Growing snapshot for Cosby
Last spring frost
Apr 17
First fall frost
Oct 19
Growing season
184 days
Hardiness zone
6a
More local growing data for Cosby: nearby ZIP 64436 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cosby 2W, Mo (0.9 mi from Cosby). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.