Washington, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Washington, a city in Washington County, Kansas.
Tonight
71°F
Partly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 71. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast for Washington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph S | 19% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 34% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 5 mph N | 41% |
| Sunday | 69°F | Chance Rain Showers | 5 to 10 mph NE | 51% |
| Sunday Night | 60°F | Chance Rain Showers | 5 mph NE | 51% |
| Monday | 66°F | Slight Chance Rain Showers | 5 mph N | 18% |
| Monday Night | 54°F | Partly Cloudy | 5 mph NE | 11% |
| Tuesday | 64°F | Partly Sunny | 5 mph NE | 3% |
| Tuesday Night | 52°F | Partly Cloudy | 0 to 5 mph E | 1% |
| Wednesday | 67°F | Partly Sunny | 0 to 5 mph SE | 7% |
| Wednesday Night | 57°F | Mostly Cloudy then Chance Rain Showers | 5 mph SE | 27% |
| Thursday | 68°F | Chance Rain Showers | 0 to 5 mph SE | 38% |
| Thursday Night | 58°F | Chance Rain Showers | 0 to 5 mph SE | 28% |
| Friday | 69°F | Chance Rain Showers | 0 to 5 mph SE | 29% |
Forecast source: National Weather Service (api.weather.gov) for Washington (39.816, -97.048). Updated through the day.
Growing snapshot for Washington
Last spring frost
Apr 24
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
6a
More local growing data for Washington: nearby ZIP 66968 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Washington, Ks (1.9 mi from Washington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.