La Harpe, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for La Harpe, a city in Allen County, Kansas.
Overnight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. West northwest wind around 8 mph.
7-day forecast for La Harpe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Cloudy | 8 mph WNW | 0% |
| Wednesday | 60°F | Mostly Sunny | 6 to 12 mph W | 0% |
| Wednesday Night | 41°F | Clear | 5 mph WSW | 1% |
| Thursday | 58°F | Sunny | 2 to 7 mph NW | 8% |
| Thursday Night | 43°F | Partly Cloudy | 6 mph NNW | 5% |
| Friday | 56°F | Partly Sunny | 8 mph N | 0% |
| Friday Night | 37°F | Mostly Cloudy | 0 to 5 mph NNE | 0% |
| Saturday | 56°F | Mostly Sunny | 0 to 3 mph NE | 0% |
| Saturday Night | 36°F | Mostly Clear | 1 mph NNE | 0% |
| Sunday | 62°F | Sunny | 3 mph WNW | 0% |
| Sunday Night | 39°F | Clear | 2 mph SW | 0% |
| Monday | 67°F | Sunny | 2 to 9 mph SSW | 0% |
| Monday Night | 43°F | Clear | 6 mph SW | 0% |
| Tuesday | 68°F | Sunny | 3 to 7 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for La Harpe (37.916, -95.303). Updated through the day.
Growing snapshot for La Harpe
Last spring frost
Apr 8
First fall frost
Oct 26
Growing season
200 days
Hardiness zone
6b
More local growing data for La Harpe: nearby ZIP 66751 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Iola 1 W, Ks (7.3 mi from La Harpe). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.