Elma, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Elma, a city in Howard County, Iowa.
Tonight
49°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 49, with temperatures rising to around 53 overnight. Southeast wind 7 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Elma
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Rain Showers Likely | 7 to 13 mph SE | 65% |
| Wednesday | 52°F | Rain Showers | 9 to 15 mph SW | 82% |
| Wednesday Night | 43°F | Rain Showers | 15 mph W | 84% |
| Thursday | 50°F | Rain Showers Likely | 15 mph NW | 71% |
| Thursday Night | 37°F | Mostly Cloudy | 9 to 13 mph N | 10% |
| Friday | 47°F | Partly Sunny | 3 to 10 mph N | 0% |
| Friday Night | 30°F | Partly Cloudy | 2 mph NW | 0% |
| Saturday | 52°F | Mostly Sunny | 1 to 6 mph SW | 2% |
| Saturday Night | 35°F | Partly Cloudy | 6 mph W | 5% |
| Sunday | 57°F | Sunny | 8 mph W | 10% |
| Sunday Night | 37°F | Mostly Clear | 7 mph SW | 1% |
| Monday | 59°F | Mostly Sunny | 7 to 13 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 7 mph W | 1% |
| Tuesday | 58°F | Mostly Sunny | 8 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Elma (43.246, -92.439). Updated through the day.
Growing snapshot for Elma
Last spring frost
May 2
First fall frost
Oct 5
Growing season
155 days
Hardiness zone
4b
More local growing data for Elma: nearby ZIP 50628 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, New Hampton, Ia (16.2 mi from Elma). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.