Green Valley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a village in Tazewell County, Illinois.
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. South wind around 6 mph.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 6 mph S | 0% |
| Tonight | 66°F | Partly Cloudy | 5 mph SSE | 9% |
| Wednesday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 6 mph S | 32% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph E | 90% |
| Thursday | 81°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SSW | 80% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SSE | 17% |
| Friday | 84°F | Mostly Sunny | 2 mph SSW | 7% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 1 mph S | 23% |
| Saturday | 86°F | Sunny | 5 mph SSW | 13% |
| Saturday Night | 70°F | Mostly Clear | 2 to 6 mph S | 9% |
| Sunday | 89°F | Sunny | 6 to 10 mph SSW | 6% |
| Sunday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 8 mph SSW | 17% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 6 to 9 mph SSW | 17% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 8 mph SW | 26% |
Forecast source: National Weather Service (api.weather.gov) for Green Valley (40.407, -89.644). Updated through the day.
Growing snapshot for Green Valley
Last spring frost
Apr 17
First fall frost
Oct 18
Growing season
182 days
Hardiness zone
6a
More local growing data for Green Valley: nearby ZIP 61534 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Armington
Creve Coeur
Deer Creek
Delavan
East Peoria
Heritage Lake
Hopedale
Mackinaw
Manito
Marquette Heights
Minier
Morton
North Pekin
Pekin
South Pekin
Tremont
Washington
Climate data from the nearest NOAA station, Mason City 4Se, Il (17.3 mi from Green Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.