Adeline, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Adeline, a village in Stephenson County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. Southwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Adeline
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 10 mph SW | 11% |
| Tonight | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph WSW | 74% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 5 mph WNW | 74% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely | 0 to 5 mph NNW | 72% |
| Thursday | 78°F | Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 33% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 9% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SSE | 6% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph S | 6% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SSW | 10% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 21% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph SSW | 21% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SSW | 41% |
| Monday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 38% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph WNW | 43% |
Forecast source: National Weather Service (api.weather.gov) for Adeline (42.141, -89.492). Updated through the day.
Growing snapshot for Adeline
Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
5b
More local growing data for Adeline: nearby ZIP 61039 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Cedarville
Dakota
Davis
Freeport
German Valley
Lake Summerset
Lena
Orangeville
Pearl City
Ridott
Rock City
Willow Lake
Winslow
Climate data from the nearest NOAA station, Freeport Waste Wtp, Il (9.2 mi from Adeline). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.