Melvin, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Melvin, a city in Osceola County, Iowa.
This Afternoon
45°F
Rain Showers
Rain showers. Cloudy, with a high near 45. West northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Melvin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Rain Showers | 15 mph WNW | 98% |
| Tonight | 37°F | Rain Showers then Cloudy | 15 mph NW | 97% |
| Thursday | 44°F | Cloudy | 15 mph N | 4% |
| Thursday Night | 30°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Friday | 44°F | Mostly Sunny | 0 to 5 mph ENE | 0% |
| Friday Night | 27°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Saturday | 51°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 32°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 57°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 37°F | Clear | 5 to 10 mph SSW | 0% |
| Monday | 61°F | Sunny | 10 mph WSW | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 mph NNW | 0% |
| Tuesday Night | 37°F | Partly Cloudy | 5 mph NNE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Melvin (43.286, -95.609). Updated through the day.
Growing snapshot for Melvin
Last spring frost
May 1
First fall frost
Oct 7
Growing season
160 days
Hardiness zone
5a
More local growing data for Melvin: nearby ZIP 51350 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sanborn, Ia (9.4 mi from Melvin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.