Kirwin, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kirwin, a city in Phillips County, Kansas.
Today
81°F
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 8am and 10am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 81. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast for Kirwin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 10 to 15 mph NE | 21% |
| Tonight | 61°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph NNE | 28% |
| Wednesday | 78°F | Chance Showers And Thunderstorms | 10 mph NE | 42% |
| Wednesday Night | 58°F | Partly Cloudy | 5 to 10 mph ENE | 4% |
| Thursday | 86°F | Mostly Sunny | 5 to 10 mph ESE | 4% |
| Thursday Night | 64°F | Mostly Clear | 5 to 10 mph SE | 9% |
| Friday | 93°F | Sunny | 5 to 10 mph SE | 9% |
| Friday Night | 68°F | Clear | 5 to 10 mph SSE | 3% |
| Saturday | 98°F | Sunny | 5 to 15 mph S | 2% |
| Saturday Night | 72°F | Mostly Clear | 10 to 15 mph SSE | 1% |
| Sunday | 100°F | Sunny | 10 to 15 mph S | 1% |
| Sunday Night | 74°F | Mostly Clear | 15 mph S | 3% |
| Monday | 100°F | Sunny | 10 to 15 mph S | 3% |
| Monday Night | 73°F | Mostly Clear | 15 mph S | 7% |
Forecast source: National Weather Service (api.weather.gov) for Kirwin (39.670, -99.122). Updated through the day.
Growing snapshot for Kirwin
Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
159 days
Hardiness zone
6a
More local growing data for Kirwin: nearby ZIP 67644 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kirwin Dam, Ks (1.9 mi from Kirwin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.