Barnes, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Barnes, a city in Washington County, Kansas.
Today
89°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Barnes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 23% |
| Tonight | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph N | 60% |
| Sunday | 70°F | Chance Showers And Thunderstorms | 10 mph N | 37% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 5 to 10 mph N | 34% |
| Monday | 65°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph NE | 17% |
| Monday Night | 53°F | Mostly Cloudy | 5 mph NE | 4% |
| Tuesday | 63°F | Partly Sunny | 5 mph NE | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Wednesday | 66°F | Mostly Sunny | 0 to 5 mph SE | 4% |
| Wednesday Night | 55°F | Mostly Cloudy then Chance Rain Showers | 5 mph SE | 27% |
| Thursday | 68°F | Chance Rain Showers | 5 mph SE | 39% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 5 mph SE | 30% |
| Friday | 69°F | Chance Showers And Thunderstorms | 5 mph SE | 30% |
| Friday Night | 60°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Barnes (39.712, -96.873). Updated through the day.
Growing snapshot for Barnes
Last spring frost
Apr 24
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
6a
More local growing data for Barnes: nearby ZIP 66933 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Washington, Ks (13.4 mi from Barnes). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.