Olathe, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Olathe, a town in Delta County, Colorado.
This Afternoon
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Olathe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 26% |
| Tonight | 48°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SSE | 37% |
| Saturday | 75°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph WSW | 23% |
| Saturday Night | 45°F | Mostly Clear | 5 mph S | 8% |
| Sunday | 73°F | Sunny | 0 to 5 mph E | 0% |
| Sunday Night | 44°F | Mostly Clear | 5 mph S | 0% |
| Monday | 77°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Monday Night | 45°F | Partly Cloudy | 0 to 5 mph S | 4% |
| Tuesday | 74°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph SSE | 37% |
| Tuesday Night | 46°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 39% |
| Wednesday | 74°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNW | 18% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph S | 10% |
| Thursday | 76°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 15% |
| Thursday Night | 47°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 23% |
Forecast source: National Weather Service (api.weather.gov) for Olathe (38.608, -107.983). Updated through the day.
Growing snapshot for Olathe
Last spring frost
May 1
First fall frost
Oct 7
Growing season
159 days
Hardiness zone
6b
More local growing data for Olathe: nearby ZIP 81410 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Delta 3E, Co (4.7 mi from Olathe). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.