Cosby, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cosby, a village in Andrew County, Missouri.
This Afternoon
91°F
Partly Sunny
Partly sunny, with a high near 91. Heat index values as high as 97. South southwest wind around 9 mph.
7-day forecast for Cosby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Partly Sunny | 9 mph SSW | 2% |
| Tonight | 73°F | Partly Cloudy | 9 mph S | 14% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 8 to 12 mph SW | 25% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph N | 71% |
| Sunday | 76°F | Chance Showers And Thunderstorms | 6 to 12 mph N | 43% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 7 to 12 mph NE | 50% |
| Monday | 67°F | Chance Rain Showers | 12 mph NNE | 49% |
| Monday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 6 to 12 mph NNE | 25% |
| Tuesday | 65°F | Mostly Cloudy | 10 mph NE | 8% |
| Tuesday Night | 50°F | Mostly Cloudy | 3 to 9 mph NE | 6% |
| Wednesday | 68°F | Mostly Sunny | 6 mph ENE | 2% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 mph E | 6% |
| Thursday | 70°F | Slight Chance Rain Showers | 5 mph ESE | 17% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 5 mph E | 19% |
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 Sep 19, 2026.