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
68°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
7-day forecast for Galena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 15 mph S | 76% |
| Tonight | 53°F | Showers And Thunderstorms | 10 to 15 mph S | 85% |
| Wednesday | 55°F | Rain Showers Likely | 15 mph SW | 62% |
| Wednesday Night | 45°F | Chance Rain Showers | 10 to 15 mph SW | 33% |
| Thursday | 52°F | Rain Showers Likely | 5 to 10 mph W | 66% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 22% |
| Friday | 49°F | Partly Sunny | 5 to 10 mph N | 10% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Sunday | 58°F | Mostly Sunny | 5 mph W | 12% |
| Sunday Night | 36°F | Mostly Clear | 0 to 5 mph W | 3% |
| Monday | 60°F | Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 39°F | Mostly Clear | 5 mph W | 0% |
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 Nov 4, 2026.