Simpson, KS Weather & Growing Conditions
Overnight
71°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. East southeast wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Slight Chance Showers And Thunderstorms | 10 mph ESE | 21% |
| Tuesday | 85°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 mph ENE | 18% |
| Tuesday Night | 64°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph NNE | 18% |
| Wednesday | 79°F | Chance Showers And Thunderstorms | 10 mph NNE | 37% |
| Wednesday Night | 63°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Thursday | 84°F | Mostly Sunny | 5 to 10 mph E | 7% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 32% |
| Friday | 91°F | Chance Showers And Thunderstorms then Sunny | 5 to 10 mph SSE | 32% |
| Friday Night | 70°F | Clear | 5 to 10 mph SSE | 4% |
| Saturday | 95°F | Sunny | 5 to 15 mph S | 4% |
| Saturday Night | 75°F | Mostly Clear | 10 to 15 mph S | 2% |
| Sunday | 97°F | Sunny | 10 to 20 mph S | 2% |
| Sunday Night | 76°F | Mostly Clear | 15 to 20 mph S | 3% |
| Monday | 98°F | Mostly Sunny | 15 to 20 mph S | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Simpson, KS
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
6b
Explore more for Simpson, KS: full frost dates · planting calendar · Kansas frost dates
Climate data from the nearest NOAA station, Beloit, Ks (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.