Grinnell, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grinnell, a city in Gove County, Kansas.
Today
81°F
Partly Sunny
Partly sunny. High near 81, with temperatures falling to around 78 in the afternoon. Northeast wind 15 to 20 mph.
7-day forecast for Grinnell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Partly Sunny | 15 to 20 mph NE | 13% |
| Tonight | 59°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph NE | 26% |
| Wednesday | 81°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph NE | 24% |
| Wednesday Night | 59°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 10 mph E | 15% |
| Thursday | 91°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph SE | 15% |
| Thursday Night | 64°F | Mostly Clear | 5 to 10 mph SE | 10% |
| Friday | 96°F | Sunny | 5 to 10 mph SE | 3% |
| Friday Night | 66°F | Clear | 5 to 10 mph S | 4% |
| Saturday | 101°F | Sunny | 5 to 15 mph S | 0% |
| Saturday Night | 70°F | Mostly Clear | 15 mph S | 1% |
| Sunday | 102°F | Sunny | 10 to 15 mph S | 1% |
| Sunday Night | 71°F | Mostly Clear | 15 mph S | 3% |
| Monday | 102°F | Sunny | 15 mph S | 1% |
| Monday Night | 71°F | Mostly Clear | 15 mph SE | 6% |
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 Aug 4, 2026.