Alden, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alden, a community in Walworth County, Illinois.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. Southwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Alden
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 10 mph SW | 2% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 74% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 5 mph W | 74% |
| Wednesday Night | 61°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 69% |
| Thursday | 78°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 39% |
| Thursday Night | 59°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 15% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph S | 3% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph SSW | 6% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 11% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 23% |
| Sunday | 84°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 23% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 44% |
| Monday | 83°F | Chance Rain Showers | 5 mph SSW | 44% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 5 mph WSW | 45% |
Forecast source: National Weather Service (api.weather.gov) for Alden (42.459, -88.519). Updated through the day.
Growing snapshot for Alden
Last spring frost
Apr 25
First fall frost
Oct 21
Growing season
179 days
Hardiness zone
5b
More local growing data for Alden: nearby ZIP 53195 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lake Geneva Wwtp, Wi (6.8 mi from Alden). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.