Formoso, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Formoso, a city in Jewell County, Kansas.
Today
88°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny. High near 88, with temperatures falling to around 83 in the afternoon. North northwest wind 5 to 10 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 |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph NNW | 22% |
| Tonight | 63°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph NNE | 62% |
| Sunday | 69°F | Chance Rain Showers | 10 mph NNE | 28% |
| Sunday Night | 60°F | Mostly Cloudy | 5 to 10 mph NNE | 12% |
| Monday | 68°F | Partly Sunny | 5 to 10 mph NNE | 11% |
| Monday Night | 53°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Tuesday | 66°F | Partly Sunny | 5 mph ENE | 3% |
| Tuesday Night | 51°F | Partly Cloudy | 5 to 10 mph ESE | 2% |
| Wednesday | 68°F | Partly Sunny | 5 to 10 mph SE | 11% |
| Wednesday Night | 57°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph SE | 34% |
| Thursday | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 42% |
| Thursday Night | 60°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 30% |
| Friday | 71°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 30% |
| Friday Night | 61°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SE | 32% |
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 Sep 19, 2026.