Kirwin, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kirwin, a city in Phillips County, Kansas.
Tonight
36°F
Partly Cloudy
Partly cloudy, with a low around 36. Northwest wind around 10 mph.
7-day forecast for Kirwin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Partly Cloudy | 10 mph NW | 1% |
| Wednesday | 55°F | Sunny | 5 to 10 mph WNW | 0% |
| Wednesday Night | 36°F | Mostly Clear | 5 mph NW | 1% |
| Thursday | 54°F | Partly Sunny | 5 to 10 mph NNW | 7% |
| Thursday Night | 32°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Friday | 54°F | Mostly Sunny | 0 to 5 mph ENE | 0% |
| Friday Night | 34°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 63°F | Mostly Sunny | 0 to 5 mph WNW | 3% |
| Saturday Night | 37°F | Mostly Clear | 5 mph WNW | 2% |
| Sunday | 66°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 40°F | Clear | 5 mph SSW | 0% |
| Monday | 67°F | Sunny | 5 to 10 mph WNW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph N | 0% |
| Tuesday | 64°F | Mostly Sunny | 5 mph NE | 0% |
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 Nov 4, 2026.