Kirwin, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kirwin, a city in Phillips County, Kansas.
Today
84°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. North northeast wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Kirwin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 17% |
| Tonight | 62°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph NNE | 31% |
| Sunday | 70°F | Chance Rain Showers then Mostly Cloudy | 10 mph NNE | 29% |
| Sunday Night | 58°F | Mostly Cloudy | 5 to 10 mph NNE | 10% |
| Monday | 70°F | Partly Sunny | 5 mph NNE | 9% |
| Monday Night | 53°F | Mostly Cloudy | 5 to 10 mph ENE | 4% |
| Tuesday | 67°F | Mostly Cloudy | 5 to 10 mph E | 3% |
| Tuesday Night | 53°F | Partly Cloudy | 10 mph ESE | 9% |
| Wednesday | 71°F | Slight Chance Rain Showers | 10 mph SE | 18% |
| Wednesday Night | 59°F | Slight Chance Showers And Thunderstorms | 10 mph SE | 40% |
| Thursday | 73°F | Chance Showers And Thunderstorms | 10 mph SSE | 40% |
| Thursday Night | 61°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 31% |
| Friday | 73°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 31% |
| Friday Night | 62°F | Chance Rain Showers | 10 mph ESE | 44% |
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 Sep 19, 2026.