Simpson, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Simpson, a city in Mitchell County, Kansas.
This Afternoon
56°F
Chance Light Rain
A chance of rain. Cloudy. High near 56, with temperatures falling to around 53 in the afternoon. North northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Simpson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Chance Light Rain | 20 to 25 mph NNW | 44% |
| Tonight | 41°F | Mostly Cloudy | 10 to 15 mph NW | 7% |
| Wednesday | 56°F | Sunny | 5 to 15 mph WNW | 0% |
| Wednesday Night | 38°F | Mostly Clear | 5 mph WNW | 1% |
| Thursday | 56°F | Partly Sunny | 5 to 10 mph NW | 10% |
| Thursday Night | 36°F | Mostly Clear | 5 mph NNW | 0% |
| Friday | 56°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 37°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 63°F | Mostly Sunny | 0 to 5 mph WSW | 2% |
| Saturday Night | 39°F | Mostly Clear | 0 to 5 mph W | 4% |
| Sunday | 67°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 42°F | Clear | 5 mph SSW | 0% |
| Monday | 69°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph NNW | 0% |
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 Nov 3, 2026.