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Formoso, KS Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Formoso, a city in Jewell County, Kansas.

Tonight
70°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South southwest wind 5 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

WhenTempForecastWindPrecip
Tonight 70°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 5 to 15 mph SSW 23%
Saturday 84°F Slight Chance Showers And Thunderstorms 0 to 10 mph NW 20%
Saturday Night 63°F Chance Showers And Thunderstorms 10 mph NNE 32%
Sunday 70°F Chance Showers And Thunderstorms 10 mph NNE 41%
Sunday Night 61°F Chance Rain Showers 5 to 10 mph NNE 40%
Monday 68°F Partly Sunny 5 to 10 mph N 13%
Monday Night 54°F Partly Cloudy 5 to 10 mph NE 9%
Tuesday 67°F Partly Sunny 5 mph ENE 3%
Tuesday Night 54°F Partly Cloudy 5 to 10 mph ESE 3%
Wednesday 69°F Partly Sunny 5 to 10 mph SE 13%
Wednesday Night 59°F Mostly Cloudy then Chance Showers And Thunderstorms 5 to 10 mph SE 38%
Thursday 70°F Chance Showers And Thunderstorms 5 mph SSE 38%
Thursday Night 60°F Chance Rain Showers 5 mph SE 31%
Friday 71°F Chance Rain Showers 5 to 10 mph SE 31%

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

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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.