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Elma, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Elma, a city in Howard County, Iowa.

Overnight
61°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 61. Southeast wind around 13 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast for Elma

WhenTempForecastWindPrecip
Overnight 61°F Showers And Thunderstorms 13 mph SE 93%
Saturday 68°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 7 to 10 mph SW 60%
Saturday Night 56°F Chance Showers And Thunderstorms 9 to 14 mph N 26%
Sunday 66°F Mostly Cloudy 16 mph NE 14%
Sunday Night 50°F Mostly Cloudy then Chance Rain Showers 14 mph NE 25%
Monday 61°F Chance Rain Showers 10 to 14 mph NE 25%
Monday Night 45°F Slight Chance Rain Showers then Mostly Cloudy 10 mph NE 19%
Tuesday 60°F Mostly Sunny 9 mph NE 9%
Tuesday Night 42°F Partly Cloudy 6 mph E 2%
Wednesday 64°F Sunny 7 mph E 1%
Wednesday Night 47°F Mostly Clear 5 mph E 4%
Thursday 65°F Slight Chance Rain Showers 6 mph E 15%
Thursday Night 50°F Partly Cloudy 3 mph E 4%
Friday 68°F Mostly Sunny 6 mph SE 4%

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

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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 Sep 19, 2026.