Grand Ridge, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grand Ridge, a village in Lasalle County, Illinois.
Today
62°F
Slight Chance Rain Showers
A slight chance of drizzle before 11am, then a slight chance of rain showers and a slight chance of drizzle. Mostly cloudy. High near 62, with temperatures falling to around 56 in the afternoon. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast for Grand Ridge
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 62°F | Slight Chance Rain Showers | 10 to 15 mph WSW | 12% |
| Tonight | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph SW | 9% |
| Thursday | 57°F | Mostly Cloudy then Chance Rain | 10 to 15 mph WSW | 40% |
| Thursday Night | 40°F | Chance Rain then Cloudy | 5 to 10 mph NW | 29% |
| Friday | 50°F | Partly Sunny | 5 to 10 mph N | 2% |
| Friday Night | 33°F | Partly Cloudy | 0 to 5 mph NNW | 0% |
| Saturday | 52°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 1% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 3% |
| Sunday Night | 34°F | Clear | 0 to 5 mph W | 0% |
| Monday | 63°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph WSW | 1% |
| Tuesday | 63°F | Sunny | 5 mph WNW | 1% |
| Tuesday Night | 39°F | Partly Cloudy | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Grand Ridge (41.236, -88.831). Updated through the day.
Growing snapshot for Grand Ridge
Last spring frost
Apr 27
First fall frost
Oct 17
Growing season
171 days
Hardiness zone
5b
More local growing data for Grand Ridge: nearby ZIP 61325 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Cedar Point
Dana
Dayton
Earlville
Harding
Kangley
LaSalle
Leland
Leonore
Lostant
Marseilles
Mendota
Millington
Naplate
Newark
North Utica
Oglesby
Ottawa
Peru
Ransom
Rutland
Seneca
Serena
Sheridan
Streator
Tonica
Triumph
Troy Grove
Wedron
Wenona
Climate data from the nearest NOAA station, Marseilles Lock, Il (7.1 mi from Grand Ridge). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.