Hanover, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hanover, a village in Jo Daviess County, Illinois.
Today
85°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4pm. Partly sunny. High near 85, with temperatures falling to around 83 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Hanover
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 33% |
| Tonight | 65°F | Showers And Thunderstorms Likely | 0 to 5 mph NW | 85% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 66% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 55% |
| Thursday | 79°F | Chance Rain Showers then Mostly Sunny | 0 mph | 25% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 4% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SE | 5% |
| Friday Night | 64°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 85°F | Sunny | 5 mph SW | 11% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 mph S | 23% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 23% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 5 mph S | 41% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 mph S | 40% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 mph NE | 42% |
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 Aug 4, 2026.