Harman US

Elma, IA Weather & Growing Conditions

Overnight
49°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 49, with temperatures rising to around 52 overnight. Southwest wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 49°F Chance Rain Showers 10 mph SW 50%
Wednesday 51°F Rain Showers Likely 12 to 16 mph W 69%
Wednesday Night 44°F Rain Showers Likely 13 to 16 mph W 74%
Thursday 49°F Chance Rain Showers then Cloudy 15 mph NW 48%
Thursday Night 36°F Mostly Cloudy 8 to 13 mph N 12%
Friday 45°F Mostly Sunny 3 to 9 mph N 2%
Friday Night 28°F Mostly Clear 2 mph N 0%
Saturday 49°F Sunny 2 to 7 mph W 0%
Saturday Night 34°F Mostly Clear 7 mph W 1%
Sunday 54°F Sunny 8 mph W 3%
Sunday Night 36°F Mostly Clear 7 mph SW 0%
Monday 58°F Sunny 7 to 12 mph SW 0%
Monday Night 40°F Mostly Clear 7 mph W 0%
Tuesday 57°F Sunny 6 mph NW 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Elma, IA

Last spring frost
May 2
First fall frost
Oct 5
Growing season
155 days
Hardiness zone
4b

Explore more for Elma, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, New Hampton, Ia (16.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.