Harman US

Alden, IA Weather & Growing Conditions

Overnight
44°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 44, with temperatures rising to around 46 overnight. West northwest wind around 18 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 44°F Chance Rain Showers 18 mph WNW 42%
Wednesday 50°F Chance Rain Showers 14 to 17 mph W 37%
Wednesday Night 42°F Chance Rain Showers 13 mph W 39%
Thursday 52°F Rain Showers Likely then Cloudy 10 to 14 mph NW 63%
Thursday Night 36°F Mostly Cloudy 5 to 9 mph N 10%
Friday 48°F Mostly Sunny 2 to 6 mph NNE 4%
Friday Night 28°F Partly Cloudy 2 mph NNW 0%
Saturday 51°F Mostly Sunny 0 to 3 mph SW 0%
Saturday Night 34°F Mostly Clear 3 mph W 1%
Sunday 57°F Sunny 6 mph W 2%
Sunday Night 36°F Clear 5 mph SW 0%
Monday 63°F Sunny 5 to 9 mph SW 0%
Monday Night 39°F Mostly Clear 5 mph WNW 0%
Tuesday 61°F Mostly Sunny 3 mph NW 0%

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

Growing snapshot for Alden, IA

Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
5a

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

Climate data from the nearest NOAA station, Iowa Falls, Ia (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.