Alden, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alden, a city in Hardin County, Iowa.
Today
78°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 78, with temperatures falling to around 74 in the afternoon. West northwest wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Alden
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Showers And Thunderstorms Likely | 9 mph WNW | 55% |
| Tonight | 59°F | Showers And Thunderstorms Likely | 3 to 8 mph N | 59% |
| Wednesday | 75°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 5 mph NE | 20% |
| Wednesday Night | 53°F | Mostly Clear | 2 mph NNE | 3% |
| Thursday | 81°F | Sunny | 0 to 3 mph E | 1% |
| Thursday Night | 59°F | Mostly Clear | 5 mph SSE | 1% |
| Friday | 84°F | Sunny | 3 to 9 mph S | 8% |
| Friday Night | 64°F | Slight Chance Showers And Thunderstorms | 8 mph S | 21% |
| Saturday | 87°F | Sunny | 5 to 10 mph S | 14% |
| Saturday Night | 69°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 9 to 14 mph SSE | 17% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph SSE | 17% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 7 to 10 mph SSE | 33% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 12 mph SSE | 33% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 9 to 14 mph E | 33% |
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 Aug 4, 2026.