Malcom, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Malcom, a city in Poweshiek County, Iowa.
Overnight
64°F
Partly Cloudy
Partly cloudy. Low around 64, with temperatures rising to around 66 overnight. South wind around 6 mph.
7-day forecast for Malcom
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Partly Cloudy | 6 mph S | 1% |
| Tuesday | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 7 mph WSW | 24% |
| Tuesday Night | 62°F | Showers And Thunderstorms | 8 mph NNE | 89% |
| Wednesday | 75°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph NNE | 79% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 3 mph NNE | 47% |
| Thursday | 80°F | Sunny | 2 mph NE | 6% |
| Thursday Night | 59°F | Mostly Clear | 1 mph E | 0% |
| Friday | 84°F | Sunny | 1 to 5 mph SSE | 5% |
| Friday Night | 64°F | Mostly Clear | 3 mph SSE | 14% |
| Saturday | 87°F | Sunny | 6 mph S | 11% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 6 to 9 mph S | 15% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Sunny | 9 mph S | 15% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 8 mph S | 34% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 34% |
Forecast source: National Weather Service (api.weather.gov) for Malcom (41.706, -92.555). Updated through the day.
Growing snapshot for Malcom
Last spring frost
May 3
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5a
More local growing data for Malcom: nearby ZIP 50157 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grinnell 3 Sw, Ia (9.7 mi from Malcom). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.