Galena, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Galena, a city in Jo Daviess County, Illinois.
Overnight
62°F
Partly Cloudy
Partly cloudy, with a low around 62. South wind around 5 mph.
7-day forecast for Galena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Partly Cloudy | 5 mph S | 0% |
| Tuesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 28% |
| Tuesday Night | 64°F | Showers And Thunderstorms Likely | 0 to 5 mph NW | 80% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 60% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 51% |
| Thursday | 79°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 23% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 4% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SE | 5% |
| Friday Night | 64°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 84°F | Mostly Sunny | 5 mph S | 10% |
| Saturday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph S | 24% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 24% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 42% |
| Monday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 42% |
Forecast source: National Weather Service (api.weather.gov) for Galena (42.422, -90.428). Updated through the day.
Growing snapshot for Galena
Last spring frost
Apr 26
First fall frost
Oct 15
Growing season
170 days
Hardiness zone
5a
More local growing data for Galena: nearby ZIP 61036 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Apple Canyon Lake
Apple River
East Dubuque
Elizabeth
Hanover
Menominee
Nora
Scales Mound
Stockton
The Galena Territory
Warren
Climate data from the nearest NOAA station, Galena, Il (1.1 mi from Galena). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.