Harman US

Alton, KS Weather & Growing Conditions

Tonight
70°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1am. Mostly cloudy. Low around 70, with temperatures rising to around 73 overnight. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 70°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 5 to 15 mph SSW 23%
Saturday 84°F Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 5 to 10 mph N 18%
Saturday Night 63°F Mostly Cloudy then Chance Showers And Thunderstorms 10 mph NNE 41%
Sunday 72°F Chance Showers And Thunderstorms 10 mph NNE 44%
Sunday Night 60°F Slight Chance Rain Showers then Mostly Cloudy 5 to 10 mph NNE 15%
Monday 72°F Partly Sunny 5 to 10 mph N 12%
Monday Night 55°F Mostly Clear 5 to 10 mph NE 6%
Tuesday 70°F Partly Sunny 5 to 10 mph E 2%
Tuesday Night 57°F Mostly Cloudy 10 mph ESE 8%
Wednesday 72°F Slight Chance Rain Showers 10 mph SE 17%
Wednesday Night 60°F Chance Rain Showers 10 mph SE 47%
Thursday 73°F Chance Rain Showers 10 mph SSE 47%
Thursday Night 62°F Chance Rain Showers 5 to 10 mph SE 33%
Friday 75°F Chance Rain Showers 5 to 10 mph SE 33%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Alton, KS

Last spring frost
Apr 29
First fall frost
Oct 12
Growing season
164 days
Hardiness zone
6a

Explore more for Alton, KS: full frost dates · planting calendar · Kansas frost dates

Climate data from the nearest NOAA station, Alton 1 W, Ks (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.