Simpson, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Simpson, a city in Mitchell County, Kansas.
Tonight
73°F
Partly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5am. Partly cloudy. Low around 73, with temperatures rising to around 76 overnight. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast for Simpson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 16% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph WNW | 22% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 10 mph NNE | 38% |
| Sunday | 72°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph NNE | 49% |
| Sunday Night | 62°F | Chance Rain Showers | 5 to 10 mph NNE | 39% |
| Monday | 70°F | Partly Sunny | 5 to 10 mph N | 11% |
| Monday Night | 56°F | Mostly Clear | 5 to 10 mph NE | 7% |
| Tuesday | 68°F | Partly Sunny | 5 mph ENE | 3% |
| Tuesday Night | 55°F | Partly Cloudy | 5 mph E | 3% |
| Wednesday | 71°F | Partly Sunny | 5 to 10 mph SE | 11% |
| Wednesday Night | 61°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SE | 37% |
| Thursday | 71°F | Chance Showers And Thunderstorms | 5 mph SSE | 40% |
| Thursday Night | 62°F | Chance Rain Showers | 5 mph SE | 29% |
| Friday | 73°F | Chance Rain Showers | 5 to 10 mph SE | 29% |
Forecast source: National Weather Service (api.weather.gov) for Simpson (39.386, -97.934). Updated through the day.
Growing snapshot for Simpson
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
6b
More local growing data for Simpson: nearby ZIP 67478 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Beloit, Ks (10 mi from Simpson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.