Formoso, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Formoso, a city in Jewell County, Kansas.
Today
82°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms. Partly sunny, with a high near 82. Northeast wind 10 to 15 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 |
|---|---|---|---|---|
| Today | 82°F | Isolated Showers And Thunderstorms | 10 to 15 mph NE | 24% |
| Tonight | 62°F | Chance Showers And Thunderstorms | 10 to 15 mph NNE | 30% |
| Wednesday | 75°F | Chance Showers And Thunderstorms | 10 mph NE | 49% |
| Wednesday Night | 60°F | Partly Cloudy | 0 to 10 mph NE | 5% |
| Thursday | 83°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SE | 19% |
| Friday | 90°F | Slight Chance Showers And Thunderstorms then Sunny | 5 to 10 mph SSE | 19% |
| Friday Night | 69°F | Clear | 5 to 10 mph SSE | 2% |
| Saturday | 94°F | Sunny | 5 to 15 mph S | 2% |
| Saturday Night | 73°F | Mostly Clear | 10 to 15 mph S | 2% |
| Sunday | 97°F | Sunny | 10 to 15 mph S | 2% |
| Sunday Night | 74°F | Mostly Clear | 15 to 20 mph S | 4% |
| Monday | 97°F | Mostly Sunny | 10 to 20 mph S | 4% |
| Monday Night | 74°F | Mostly Clear | 15 to 20 mph S | 6% |
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 Aug 4, 2026.