Alton, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alton, a city in Osborne County, Kansas.
Overnight
70°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 70. East wind around 10 mph. Chance of precipitation is 30%.
7-day forecast for Alton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Chance Rain Showers | 10 mph E | 25% |
| Tuesday | 84°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| Tuesday Night | 61°F | Chance Showers And Thunderstorms | 10 to 15 mph NNE | 25% |
| Wednesday | 79°F | Chance Showers And Thunderstorms | 10 mph NNE | 28% |
| Wednesday Night | 60°F | Partly Cloudy | 5 to 10 mph ENE | 4% |
| Thursday | 86°F | Mostly Sunny | 5 to 10 mph ESE | 5% |
| Thursday Night | 65°F | Mostly Clear | 5 to 10 mph SE | 14% |
| Friday | 94°F | Sunny | 5 to 10 mph SE | 13% |
| Friday Night | 69°F | Clear | 5 to 10 mph SSE | 3% |
| Saturday | 98°F | Sunny | 5 to 15 mph S | 2% |
| Saturday Night | 74°F | Mostly Clear | 15 mph SSE | 1% |
| Sunday | 101°F | Sunny | 15 to 20 mph S | 1% |
| Sunday Night | 75°F | Mostly Clear | 15 to 20 mph S | 3% |
| Monday | 101°F | Sunny | 15 to 20 mph SSW | 3% |
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 Aug 4, 2026.