Alton, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alton, a city in Osborne County, Kansas.
This Afternoon
56°F
Mostly Cloudy
Mostly cloudy. High near 56, with temperatures falling to around 51 in the afternoon. North northwest wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Alton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Mostly Cloudy | 15 mph NNW | 6% |
| Tonight | 37°F | Partly Cloudy | 10 to 15 mph NW | 1% |
| Wednesday | 56°F | Sunny | 5 to 10 mph WNW | 0% |
| Wednesday Night | 36°F | Mostly Clear | 5 mph WNW | 1% |
| Thursday | 55°F | Partly Sunny | 5 to 10 mph NW | 6% |
| Thursday Night | 33°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Friday | 55°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 36°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 63°F | Mostly Sunny | 5 mph W | 3% |
| Saturday Night | 37°F | Clear | 0 to 5 mph W | 3% |
| Sunday | 67°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 42°F | Clear | 5 mph SSW | 0% |
| Monday | 68°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph N | 0% |
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 Nov 4, 2026.