Fontana, KS Weather & Growing Conditions
Today
94°F
Mostly Sunny
Mostly sunny, with a high near 94. Heat index values as high as 97. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Mostly Sunny | 6 mph S | 1% |
| Tonight | 72°F | Partly Cloudy | 5 mph SE | 13% |
| Wednesday | 91°F | Chance Showers And Thunderstorms | 2 to 7 mph S | 26% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 6 mph NNE | 60% |
| Thursday | 88°F | Showers And Thunderstorms Likely then Partly Sunny | 5 mph ENE | 60% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 3 mph SE | 47% |
| Friday | 90°F | Chance Showers And Thunderstorms | 1 to 6 mph S | 47% |
| Friday Night | 71°F | Mostly Clear | 5 mph SSE | 11% |
| Saturday | 93°F | Sunny | 3 to 8 mph S | 11% |
| Saturday Night | 73°F | Mostly Clear | 8 mph S | 2% |
| Sunday | 94°F | Sunny | 8 to 13 mph SSW | 2% |
| Sunday Night | 75°F | Mostly Clear | 10 mph S | 0% |
| Monday | 95°F | Sunny | 13 mph SSW | 1% |
| Monday Night | 75°F | Mostly Clear | 10 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fontana, KS
Last spring frost
Apr 14
First fall frost
Oct 25
Growing season
192 days
Hardiness zone
6b
Explore more for Fontana, KS: full frost dates · planting calendar · Kansas frost dates
Climate data from the nearest NOAA station, Osawatomie, Ks (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.