Germantown, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Germantown, a village in Clinton County, Illinois.
Today
86°F
Sunny
Sunny, with a high near 86. Wind around 0 mph.
7-day forecast for Germantown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 0 mph | 0% |
| Tonight | 66°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 89°F | Sunny | 0 to 3 mph S | 3% |
| Wednesday Night | 70°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph S | 53% |
| Thursday | 86°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph SW | 70% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 2 mph SE | 51% |
| Friday | 86°F | Chance Showers And Thunderstorms | 1 mph SW | 51% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 1 mph S | 36% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 2 mph SW | 36% |
| Saturday Night | 71°F | Partly Cloudy | 3 mph S | 11% |
| Sunday | 90°F | Sunny | 2 to 7 mph S | 8% |
| Sunday Night | 73°F | Mostly Clear | 7 mph S | 4% |
| Monday | 92°F | Mostly Sunny | 3 to 8 mph SW | 5% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 7 mph S | 15% |
Forecast source: National Weather Service (api.weather.gov) for Germantown (38.555, -89.541). Updated through the day.
Growing snapshot for Germantown
Last spring frost
Apr 6
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
6b
More local growing data for Germantown: nearby ZIP 62245 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Albers
Aviston
Bartelso
Beckemeyer
Breese
Carlyle
Damiansville
Hoffman
Huey
New Baden
St. Rose
Trenton
Climate data from the nearest NOAA station, Carlyle Rsvr, Il (13.2 mi from Germantown). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.