Colby, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colby, a city in Thomas County, Kansas.
This Afternoon
58°F
Mostly Sunny
Mostly sunny. High near 58, with temperatures falling to around 53 in the afternoon. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.
7-day forecast for Colby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Mostly Sunny | 15 to 20 mph NW | 1% |
| Tonight | 34°F | Mostly Clear | 10 mph NW | 0% |
| Wednesday | 56°F | Sunny | 5 to 10 mph NW | 0% |
| Wednesday Night | 35°F | Partly Cloudy | 5 to 10 mph N | 5% |
| Thursday | 51°F | Mostly Sunny | 5 to 15 mph NW | 1% |
| Thursday Night | 30°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Friday | 56°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Friday Night | 34°F | Partly Cloudy | 5 mph SW | 1% |
| Saturday | 60°F | Sunny | 5 to 10 mph NW | 3% |
| Saturday Night | 35°F | Mostly Clear | 5 mph NW | 3% |
| Sunday | 64°F | Sunny | 5 to 10 mph SW | 0% |
| Sunday Night | 40°F | Clear | 5 to 10 mph SW | 0% |
| Monday | 65°F | Sunny | 5 to 10 mph NW | 0% |
| Monday Night | 39°F | Partly Cloudy | 5 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Colby (39.385, -101.045). Updated through the day.
Growing snapshot for Colby
Last spring frost
May 2
First fall frost
Oct 9
Growing season
156 days
Hardiness zone
6a
More local growing data for Colby: nearby ZIP 67701 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Colby 1Sw, Ks (1 mi from Colby). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.