Knierim, IA Weather & Growing Conditions
This Afternoon
73°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Southeast wind around 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Slight Chance Showers And Thunderstorms | 13 mph SE | 21% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 12 mph SSE | 62% |
| Saturday | 76°F | Chance Showers And Thunderstorms | 6 mph NNW | 34% |
| Saturday Night | 59°F | Slight Chance Rain Showers | 8 mph N | 24% |
| Sunday | 67°F | Chance Rain Showers | 12 mph NE | 26% |
| Sunday Night | 55°F | Chance Rain Showers | 9 mph ENE | 41% |
| Monday | 61°F | Rain Showers Likely | 9 mph ENE | 63% |
| Monday Night | 50°F | Rain Showers Likely | 6 mph NE | 60% |
| Tuesday | 61°F | Mostly Cloudy | 6 mph ENE | 12% |
| Tuesday Night | 46°F | Partly Cloudy | 3 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 3 mph ESE | 4% |
| Wednesday Night | 50°F | Partly Cloudy | 1 mph ESE | 12% |
| Thursday | 67°F | Slight Chance Rain Showers | 2 mph SSE | 22% |
| Thursday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 1 mph ESE | 15% |
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 Sep 19, 2026.