Formoso, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Formoso, a city in Jewell County, Kansas.
This Afternoon
56°F
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy. High near 56, with temperatures falling to around 51 in the afternoon. North northwest wind around 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Formoso
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Slight Chance Light Rain | 20 mph NNW | 22% |
| Tonight | 40°F | Mostly Cloudy | 10 to 20 mph NW | 5% |
| Wednesday | 55°F | Mostly Sunny | 5 to 10 mph WNW | 0% |
| Wednesday Night | 38°F | Mostly Clear | 5 mph WNW | 3% |
| Thursday | 54°F | Partly Sunny | 5 to 10 mph NW | 11% |
| Thursday Night | 35°F | Mostly Clear | 5 mph N | 0% |
| Friday | 54°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 36°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 62°F | Mostly Sunny | 0 to 5 mph W | 3% |
| Saturday Night | 39°F | Mostly Clear | 0 to 5 mph WNW | 3% |
| Sunday | 65°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 42°F | Clear | 5 mph SSW | 0% |
| Monday | 68°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Formoso (39.778, -97.993). Updated through the day.
Growing snapshot for Formoso
Last spring frost
Apr 17
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
6a
More local growing data for Formoso: nearby ZIP 66942 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Courtland, Ks (5.5 mi from Formoso). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.