Derby, KS Weather & Growing Conditions
This Afternoon
99°F
Mostly Sunny
Mostly sunny, with a high near 99. South southwest wind around 17 mph, with gusts as high as 26 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Mostly Sunny | 17 mph SSW | 8% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 7 to 14 mph S | 81% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 9 mph NE | 43% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms then Mostly Cloudy | 9 to 14 mph N | 47% |
| Monday | 77°F | Partly Sunny | 13 mph N | 10% |
| Monday Night | 56°F | Partly Cloudy | 8 to 12 mph NNE | 6% |
| Tuesday | 73°F | Mostly Sunny | 10 mph NE | 3% |
| Tuesday Night | 53°F | Partly Cloudy | 7 to 10 mph ENE | 3% |
| Wednesday | 76°F | Mostly Sunny | 7 mph E | 7% |
| Wednesday Night | 57°F | Partly Cloudy | 8 mph E | 12% |
| Thursday | 79°F | Chance Rain Showers | 7 mph SE | 32% |
| Thursday Night | 62°F | Chance Showers And Thunderstorms | 7 mph ESE | 31% |
| Friday | 80°F | Chance Showers And Thunderstorms | 8 mph SE | 33% |
| Friday Night | 62°F | Chance Showers And Thunderstorms | 8 mph ESE | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Derby, KS
Last spring frost
Apr 14
First fall frost
Oct 22
Growing season
189 days
Hardiness zone
7a
Explore more for Derby, KS: full frost dates · planting calendar · Kansas frost dates
Climate data from the nearest NOAA station, Haysville 3Se, Ks (6.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.