Knierim, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Knierim, a city in Calhoun County, Iowa.
Overnight
43°F
Rain Showers Likely
Rain showers likely. Cloudy, with a low around 43. Northwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Knierim
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Rain Showers Likely | 14 mph NW | 60% |
| Wednesday | 49°F | Chance Rain Showers | 12 to 15 mph W | 38% |
| Wednesday Night | 41°F | Chance Rain Showers | 10 mph WNW | 50% |
| Thursday | 51°F | Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NNW | 34% |
| Thursday Night | 36°F | Mostly Cloudy | 3 to 7 mph N | 1% |
| Friday | 49°F | Mostly Sunny | 0 to 3 mph N | 1% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 53°F | Mostly Sunny | 0 to 3 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 2 mph WSW | 1% |
| Sunday | 58°F | Sunny | 3 mph W | 0% |
| Sunday Night | 37°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 64°F | Sunny | 3 to 7 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 3 mph WNW | 0% |
| Tuesday | 62°F | Mostly Sunny | 2 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Knierim (42.456, -94.456). Updated through the day.
Growing snapshot for Knierim
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5a
More local growing data for Knierim: nearby ZIP 50552 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Farnhamville
Jolley
Lake City
Lohrville
Lytton
Manson
Pomeroy
Rinard
Rockwell City
Somers
Twin Lakes
Climate data from the nearest NOAA station, Rockwell City, Ia (9.5 mi from Knierim). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.