Alton, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alton, a city in Osborne County, Kansas.
This Afternoon
99°F
Sunny
Sunny, with a high near 99. South southwest wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Alton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Sunny | 15 mph SSW | 1% |
| Tonight | 70°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 15 mph S | 24% |
| Saturday | 84°F | Partly Sunny | 5 to 10 mph N | 13% |
| Saturday Night | 63°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph NNE | 41% |
| Sunday | 73°F | Chance Showers And Thunderstorms | 10 mph NNE | 43% |
| Sunday Night | 60°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NNE | 15% |
| Monday | 72°F | Partly Sunny | 5 mph N | 12% |
| Monday Night | 55°F | Mostly Clear | 5 to 10 mph NE | 7% |
| Tuesday | 70°F | Partly Sunny | 5 to 10 mph E | 2% |
| Tuesday Night | 57°F | Partly Cloudy | 10 mph ESE | 8% |
| Wednesday | 73°F | Slight Chance Rain Showers | 10 mph SE | 17% |
| Wednesday Night | 61°F | Chance Rain Showers | 5 to 10 mph SE | 47% |
| Thursday | 73°F | Chance Rain Showers | 5 to 10 mph SSE | 47% |
| Thursday Night | 62°F | Chance Rain Showers | 5 to 10 mph SE | 33% |
Forecast source: National Weather Service (api.weather.gov) for Alton (39.468, -98.949). Updated through the day.
Growing snapshot for Alton
Last spring frost
Apr 29
First fall frost
Oct 12
Growing season
164 days
Hardiness zone
6a
More local growing data for Alton: nearby ZIP 67623 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Alton 1 W, Ks (2.4 mi from Alton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.