Grinnell, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grinnell, a city in Gove County, Kansas.
Overnight
64°F
Partly Cloudy
Partly cloudy. Low around 64, with temperatures rising to around 67 overnight. North wind around 10 mph.
7-day forecast for Grinnell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Partly Cloudy | 10 mph N | 4% |
| Saturday | 81°F | Partly Sunny | 5 to 15 mph N | 12% |
| Saturday Night | 60°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 58% |
| Sunday | 70°F | Chance Rain Showers then Mostly Cloudy | 10 mph NE | 32% |
| Sunday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph NE | 20% |
| Monday | 71°F | Slight Chance Rain Showers then Mostly Sunny | 5 mph NE | 20% |
| Monday Night | 53°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 10 mph E | 15% |
| Tuesday | 68°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph SE | 15% |
| Tuesday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph SE | 15% |
| Wednesday | 74°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph SE | 15% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 46% |
| Thursday | 77°F | Chance Rain Showers | 10 mph S | 46% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 32% |
| Friday | 76°F | Chance Rain Showers | 5 to 10 mph SE | 32% |
Forecast source: National Weather Service (api.weather.gov) for Grinnell (39.127, -100.631). Updated through the day.
Growing snapshot for Grinnell
Last spring frost
May 6
First fall frost
Oct 9
Growing season
156 days
Hardiness zone
6a
More local growing data for Grinnell: nearby ZIP 67738 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oakley 4W, Ks (17.6 mi from Grinnell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.