Mahaska, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mahaska, a city in Washington County, Kansas.
This Afternoon
92°F
Sunny
Sunny. High near 92, with temperatures falling to around 89 in the afternoon. South southwest wind around 14 mph, with gusts as high as 21 mph.
7-day forecast for Mahaska
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 92°F | Sunny | 14 mph SSW | 1% |
| Tonight | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 9 to 13 mph SSW | 27% |
| Saturday | 84°F | Chance Showers And Thunderstorms | 8 mph NNE | 36% |
| Saturday Night | 62°F | Chance Showers And Thunderstorms | 9 mph NNE | 27% |
| Sunday | 68°F | Chance Rain Showers | 9 mph NNE | 48% |
| Sunday Night | 59°F | Chance Rain Showers | 5 to 8 mph NNE | 48% |
| Monday | 64°F | Slight Chance Rain Showers | 8 mph NNE | 18% |
| Monday Night | 53°F | Partly Cloudy | 3 to 8 mph NE | 9% |
| Tuesday | 63°F | Partly Sunny | 6 mph ENE | 3% |
| Tuesday Night | 52°F | Partly Cloudy | 5 mph E | 1% |
| Wednesday | 66°F | Partly Sunny | 2 to 6 mph SE | 8% |
| Wednesday Night | 57°F | Mostly Cloudy then Chance Rain Showers | 5 mph SE | 31% |
| Thursday | 66°F | Chance Rain Showers | 5 mph SSE | 37% |
| Thursday Night | 58°F | Chance Rain Showers | 5 mph SE | 29% |
Forecast source: National Weather Service (api.weather.gov) for Mahaska (39.987, -97.354). Updated through the day.
Growing snapshot for Mahaska
Last spring frost
Apr 25
First fall frost
Oct 15
Growing season
169 days
Hardiness zone
6a
More local growing data for Mahaska: nearby ZIP 66955 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fairbury 5S, Ne (10.4 mi from Mahaska). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.