Malcom, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Malcom, a city in Poweshiek County, Iowa.
This Afternoon
70°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 70, with temperatures falling to around 64 in the afternoon. South southeast wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Malcom
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Showers And Thunderstorms Likely | 8 mph SSE | 58% |
| Tonight | 46°F | Rain Showers Likely | 7 to 10 mph SSW | 63% |
| Wednesday | 54°F | Chance Rain Showers | 14 mph W | 31% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph WSW | 19% |
| Thursday | 53°F | Chance Rain Showers | 10 mph WNW | 46% |
| Thursday Night | 39°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph NNW | 16% |
| Friday | 52°F | Partly Sunny | 3 to 8 mph N | 3% |
| Friday Night | 32°F | Partly Cloudy | 2 mph NNW | 1% |
| Saturday | 55°F | Mostly Sunny | 3 mph WSW | 1% |
| Saturday Night | 35°F | Mostly Clear | 3 mph W | 3% |
| Sunday | 60°F | Sunny | 6 mph W | 5% |
| Sunday Night | 36°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 64°F | Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph WNW | 0% |
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 Nov 4, 2026.