Green Valley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a village in Tazewell County, Illinois.
Tonight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. East southeast wind around 10 mph, with gusts as high as 18 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy | 10 mph ESE | 5% |
| Saturday | 89°F | Slight Chance Rain Showers then Mostly Cloudy | 8 mph S | 19% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 to 8 mph SE | 47% |
| Sunday | 79°F | Rain Showers Likely | 2 to 12 mph NNE | 64% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 13 mph NE | 65% |
| Monday | 68°F | Showers And Thunderstorms Likely | 13 mph ENE | 65% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 46% |
| Tuesday | 66°F | Chance Rain Showers then Mostly Cloudy | 12 mph NE | 26% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Wednesday | 69°F | Partly Sunny | 8 mph NNE | 4% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 7 mph NNE | 1% |
| Thursday | 70°F | Mostly Sunny | 6 mph NNE | 2% |
| Thursday Night | 55°F | Partly Cloudy | 5 mph NNE | 3% |
| Friday | 73°F | Mostly Sunny | 3 to 7 mph NNE | 4% |
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 Sep 19, 2026.