Galena, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Galena, a city in Jo Daviess County, Illinois.
This Afternoon
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 69. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
7-day forecast for Galena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Chance Showers And Thunderstorms | 10 mph SE | 26% |
| Tonight | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 88% |
| Saturday | 78°F | Showers And Thunderstorms | 5 mph S | 79% |
| Saturday Night | 61°F | Showers And Thunderstorms | 5 to 10 mph N | 85% |
| Sunday | 67°F | Rain Showers Likely | 10 to 15 mph NE | 55% |
| Sunday Night | 54°F | Chance Rain Showers | 10 to 15 mph NE | 45% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 46% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 46% |
| Tuesday | 62°F | Chance Rain Showers | 10 mph NE | 38% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 66°F | Mostly Sunny | 5 mph NE | 3% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph NE | 5% |
| Thursday Night | 51°F | Partly Cloudy | 0 mph | 5% |
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 Sep 18, 2026.