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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

WhenTempForecastWindPrecip
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

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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.