Cosby, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cosby, a village in Andrew County, Missouri.
Overnight
68°F
Partly Cloudy
Partly cloudy, with a low around 68. South southeast wind around 8 mph.
7-day forecast for Cosby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Partly Cloudy | 8 mph SSE | 0% |
| Tuesday | 90°F | Mostly Sunny | 6 mph S | 13% |
| Tuesday Night | 69°F | Chance Showers And Thunderstorms | 5 to 9 mph ENE | 40% |
| Wednesday | 81°F | Showers And Thunderstorms Likely | 10 mph NE | 57% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 63% |
| Thursday | 83°F | Showers And Thunderstorms Likely then Mostly Sunny | 6 mph ENE | 63% |
| Thursday Night | 66°F | Partly Cloudy | 2 to 6 mph SE | 12% |
| Friday | 88°F | Mostly Sunny | 3 to 8 mph S | 13% |
| Friday Night | 70°F | Slight Chance Showers And Thunderstorms | 7 mph SSE | 16% |
| Saturday | 91°F | Sunny | 5 to 13 mph S | 6% |
| Saturday Night | 75°F | Mostly Clear | 12 to 15 mph S | 4% |
| Sunday | 94°F | Sunny | 13 to 16 mph SSW | 2% |
| Sunday Night | 75°F | Partly Cloudy | 16 mph S | 5% |
| Monday | 95°F | Mostly Sunny | 17 mph SSW | 5% |
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 Aug 4, 2026.