Washington, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Washington, a city in Washington County, Kansas.
Tonight
40°F
Slight Chance Drizzle then Mostly Cloudy
A slight chance of drizzle before 9pm. Mostly cloudy, with a low around 40. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast for Washington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 40°F | Slight Chance Drizzle then Mostly Cloudy | 10 to 15 mph NW | 15% |
| Wednesday | 54°F | Partly Sunny | 5 to 10 mph NW | 0% |
| Wednesday Night | 37°F | Mostly Clear | 5 mph W | 7% |
| Thursday | 54°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph NW | 16% |
| Thursday Night | 35°F | Partly Cloudy | 5 mph N | 0% |
| Friday | 54°F | Partly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 35°F | Mostly Cloudy | 0 mph | 0% |
| Saturday | 61°F | Mostly Sunny | 0 to 5 mph W | 3% |
| Saturday Night | 37°F | Mostly Clear | 0 to 5 mph W | 5% |
| Sunday | 65°F | Sunny | 0 to 5 mph W | 1% |
| Sunday Night | 40°F | Clear | 5 mph SW | 0% |
| Monday | 68°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 66°F | Mostly Sunny | 5 mph E | 1% |
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 Nov 4, 2026.