Green Valley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a village in Tazewell County, Illinois.
This Afternoon
85°F
Cloudy
Cloudy, with a high near 85. South wind around 8 mph.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Cloudy | 8 mph S | 14% |
| Tonight | 68°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 6 mph SSW | 22% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 5 to 12 mph NNE | 35% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 9 to 14 mph NE | 51% |
| Monday | 67°F | Showers And Thunderstorms Likely | 13 mph ENE | 70% |
| Monday Night | 54°F | Chance Rain Showers | 12 mph ENE | 51% |
| Tuesday | 65°F | Chance Rain Showers | 12 mph NE | 51% |
| Tuesday Night | 51°F | Mostly Cloudy | 6 to 10 mph NNE | 9% |
| Wednesday | 68°F | Partly Sunny | 6 to 9 mph NNE | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 8 mph NNE | 0% |
| Thursday | 71°F | Mostly Sunny | 6 mph NNE | 2% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 1 to 5 mph NE | 15% |
| Friday | 75°F | Partly Sunny | 2 to 6 mph NE | 11% |
| Friday Night | 55°F | Partly Cloudy | 5 mph NE | 10% |
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
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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.