Alden, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alden, a city in Hardin County, Iowa.
Today
74°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 72 in the afternoon. West northwest wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Alden
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Chance Showers And Thunderstorms | 5 to 8 mph WNW | 44% |
| Tonight | 59°F | Chance Showers And Thunderstorms | 10 mph N | 25% |
| Sunday | 65°F | Slight Chance Rain Showers then Chance Drizzle | 12 to 15 mph NE | 27% |
| Sunday Night | 52°F | Chance Rain Showers | 13 mph ENE | 30% |
| Monday | 61°F | Chance Rain Showers | 13 mph ENE | 50% |
| Monday Night | 47°F | Chance Rain Showers | 6 to 10 mph ENE | 50% |
| Tuesday | 60°F | Mostly Sunny | 8 mph ENE | 12% |
| Tuesday Night | 44°F | Partly Cloudy | 2 to 6 mph E | 1% |
| Wednesday | 65°F | Sunny | 5 mph E | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 2 mph ESE | 6% |
| Thursday | 66°F | Partly Sunny | 3 mph ESE | 14% |
| Thursday Night | 52°F | Mostly Cloudy | 2 mph ESE | 8% |
| Friday | 69°F | Partly Sunny | 1 to 5 mph ESE | 6% |
| Friday Night | 54°F | Mostly Cloudy | 3 mph SE | 10% |
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 Sep 19, 2026.