Knierim, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Knierim, a city in Calhoun County, Iowa.
Today
77°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 77, with temperatures falling to around 73 in the afternoon. North northwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Knierim
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Showers And Thunderstorms Likely | 6 to 10 mph NNW | 72% |
| Tonight | 58°F | Showers And Thunderstorms Likely | 2 to 7 mph N | 57% |
| Wednesday | 76°F | Partly Sunny | 5 mph NE | 10% |
| Wednesday Night | 53°F | Mostly Clear | 1 mph ENE | 2% |
| Thursday | 81°F | Sunny | 0 to 5 mph S | 1% |
| Thursday Night | 60°F | Mostly Clear | 3 mph S | 2% |
| Friday | 86°F | Sunny | 2 to 8 mph S | 6% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph S | 19% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms then Sunny | 2 to 10 mph S | 15% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph SSE | 20% |
| Sunday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 9 mph SSE | 20% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms | 8 mph SSE | 31% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 10 mph SE | 31% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 mph ENE | 31% |
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 Aug 4, 2026.