Hanover, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hanover, a village in Jo Daviess County, Illinois.
This Afternoon
66°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 66. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
7-day forecast for Hanover
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Showers And Thunderstorms | 15 mph S | 86% |
| Tonight | 53°F | Showers And Thunderstorms | 10 to 15 mph S | 85% |
| Wednesday | 56°F | Rain Showers Likely | 15 mph SW | 56% |
| Wednesday Night | 44°F | Chance Rain Showers | 10 to 15 mph SW | 29% |
| Thursday | 53°F | Rain Showers Likely | 5 to 10 mph W | 59% |
| Thursday Night | 40°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 25% |
| Friday | 51°F | Partly Sunny | 5 to 10 mph N | 11% |
| 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 | 34°F | Mostly Clear | 0 to 5 mph W | 3% |
| Sunday | 59°F | Mostly Sunny | 5 mph W | 12% |
| Sunday Night | 35°F | Mostly Clear | 5 mph W | 3% |
| Monday | 62°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 Hanover (42.255, -90.274). Updated through the day.
Growing snapshot for Hanover
Last spring frost
May 1
First fall frost
Oct 9
Growing season
160 days
Hardiness zone
5a
More local growing data for Hanover: nearby ZIP 61041 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Apple Canyon Lake
Apple River
East Dubuque
Elizabeth
Galena
Menominee
Nora
Scales Mound
Stockton
The Galena Territory
Warren
Climate data from the nearest NOAA station, Elizabeth, Il (5.2 mi from Hanover). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.