New Grand Chain, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Grand Chain, a village in Pulaski County, Illinois.
Today
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 95 in the afternoon. West wind 2 to 6 mph.
7-day forecast for New Grand Chain
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 2 to 6 mph W | 1% |
| Tonight | 71°F | Mostly Clear | 2 mph SSW | 0% |
| Sunday | 97°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Sunday Night | 70°F | Partly Cloudy | 2 mph NNW | 11% |
| Monday | 89°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 6 mph NNE | 46% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 7 mph NNE | 46% |
| Tuesday | 79°F | Chance Showers And Thunderstorms | 6 to 10 mph N | 34% |
| Tuesday Night | 58°F | Partly Cloudy | 3 to 10 mph N | 11% |
| Wednesday | 78°F | Mostly Sunny | 8 mph N | 1% |
| Wednesday Night | 56°F | Partly Cloudy | 2 to 7 mph N | 1% |
| Thursday | 78°F | Mostly Sunny | 2 to 7 mph NNE | 3% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 6 mph NNE | 4% |
| Friday | 79°F | Mostly Sunny | 2 to 7 mph NNE | 4% |
| Friday Night | 57°F | Partly Cloudy | 2 to 6 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov) for New Grand Chain (37.256, -89.019). Updated through the day.
Growing snapshot for New Grand Chain
Last spring frost
Apr 3
First fall frost
Nov 5
Growing season
216 days
Hardiness zone
7a
More local growing data for New Grand Chain: nearby ZIP 62941 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grand Chain Dam 53, Il (4.9 mi from New Grand Chain). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.