German Valley, IL Weather & Growing Conditions
Today
85°F
Mostly Sunny
Mostly sunny. High near 85, with temperatures falling to around 83 in the afternoon. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 to 10 mph SW | 9% |
| Tonight | 65°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 86% |
| Wednesday | 76°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph WNW | 84% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely | 0 to 5 mph NW | 68% |
| Thursday | 78°F | Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 31% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 8% |
| Friday | 80°F | Mostly Sunny | 0 to 5 mph SSE | 6% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph S | 6% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SSW | 11% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 22% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SW | 22% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SSW | 41% |
| Monday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 38% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph WNW | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for German Valley, IL
Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
5b
Explore more for German Valley, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Freeport Waste Wtp, Il (9.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.