Knierim, IA Weather & Growing Conditions
This Afternoon
59°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 59, with temperatures falling to around 54 in the afternoon. North northwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Chance Rain Showers | 12 mph NNW | 40% |
| Tonight | 43°F | Showers And Thunderstorms | 12 mph NW | 90% |
| Wednesday | 50°F | Chance Rain Showers | 12 to 15 mph WNW | 47% |
| Wednesday Night | 41°F | Rain Showers Likely | 8 to 12 mph WNW | 64% |
| Thursday | 50°F | Rain Showers Likely | 8 to 12 mph NNW | 60% |
| Thursday Night | 37°F | Mostly Cloudy | 3 to 7 mph N | 9% |
| Friday | 50°F | Partly Sunny | 0 to 3 mph N | 3% |
| Friday Night | 32°F | Mostly Cloudy | 0 mph | 0% |
| Saturday | 56°F | Mostly Sunny | 0 to 3 mph SW | 2% |
| Saturday Night | 36°F | Mostly Clear | 2 mph W | 5% |
| Sunday | 61°F | Sunny | 3 mph W | 5% |
| Sunday Night | 39°F | Mostly Clear | 5 mph SW | 1% |
| Monday | 64°F | Sunny | 5 to 8 mph WSW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Knierim, IA
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5a
Explore more for Knierim, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Rockwell City, Ia (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.