Alden, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alden, a city in Hardin County, Iowa.
This Afternoon
64°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 64, with temperatures falling to around 60 in the afternoon. North wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Alden
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Chance Showers And Thunderstorms | 9 mph N | 53% |
| Tonight | 45°F | Showers And Thunderstorms | 7 to 10 mph NW | 84% |
| Wednesday | 51°F | Chance Rain Showers | 10 to 17 mph W | 45% |
| Wednesday Night | 41°F | Rain Showers Likely | 9 to 13 mph W | 66% |
| Thursday | 51°F | Rain Showers Likely | 12 mph NW | 63% |
| Thursday Night | 36°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 9 mph N | 18% |
| Friday | 50°F | Partly Sunny | 2 to 7 mph NNE | 4% |
| Friday Night | 31°F | Partly Cloudy | 1 mph NNE | 1% |
| Saturday | 54°F | Mostly Sunny | 0 to 5 mph WSW | 2% |
| Saturday Night | 35°F | Partly Cloudy | 3 mph W | 3% |
| Sunday | 60°F | Sunny | 6 mph W | 6% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 63°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Alden (42.512, -93.380). Updated through the day.
Growing snapshot for Alden
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
5a
More local growing data for Alden: nearby ZIP 50006 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Buckeye
Eldora
Garden City
Hubbard
Iowa Falls
New Providence
Owasa
Radcliffe
Steamboat Rock
Union
Whitten
Climate data from the nearest NOAA station, Iowa Falls, Ia (7.6 mi from Alden). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.