Melvin, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Melvin, a city in Osceola County, Iowa.
Today
72°F
Patchy Smoke
Patchy smoke and a chance of showers and thunderstorms before 7am, then patchy smoke and a slight chance of rain showers between 7am and 9am, then a chance of rain showers and patchy smoke between 9am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 72. North wind 5 to 15 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Melvin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Patchy Smoke | 5 to 15 mph N | 48% |
| Tonight | 53°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph NW | 43% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph SE | 1% |
| Wednesday Night | 53°F | Mostly Clear | 5 mph SSE | 0% |
| Thursday | 81°F | Sunny | 5 to 15 mph S | 0% |
| Thursday Night | 60°F | Mostly Clear | 10 mph S | 3% |
| Friday | 85°F | Sunny | 10 to 15 mph SSW | 7% |
| Friday Night | 64°F | Mostly Clear | 10 to 15 mph S | 13% |
| Saturday | 88°F | Sunny | 5 to 15 mph S | 7% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms | 15 to 20 mph ESE | 22% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SE | 20% |
| Sunday Night | 67°F | Partly Cloudy then Chance Showers And Thunderstorms | 15 mph E | 28% |
| Monday | 85°F | Chance Showers And Thunderstorms then Partly Sunny | 15 mph E | 28% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 15 mph ENE | 25% |
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 Aug 4, 2026.