Big Rock, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Rock, a village in Kane County, Illinois.
Tonight
63°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Big Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph E | 44% |
| Saturday | 78°F | Showers And Thunderstorms Likely | 10 mph SE | 81% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 80% |
| Sunday | 69°F | Showers And Thunderstorms | 10 to 15 mph NNE | 80% |
| Sunday Night | 56°F | Rain Showers Likely | 15 mph NE | 65% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 50% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday | 64°F | Slight Chance Rain Showers | 15 mph NE | 23% |
| Tuesday Night | 50°F | Mostly Cloudy | 10 to 15 mph NNE | 11% |
| Wednesday | 67°F | Partly Sunny | 10 to 15 mph NNE | 5% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 69°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 52°F | Partly Cloudy | 5 to 10 mph NNE | 3% |
| Friday | 71°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Big Rock (41.767, -88.526). Updated through the day.
Growing snapshot for Big Rock
Last spring frost
Apr 28
First fall frost
Oct 13
Growing season
166 days
Hardiness zone
5b
More local growing data for Big Rock: nearby ZIP 60511 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Aurora
Batavia
Burlington
Campton Hills
Carpentersville
East Dundee
Elburn
Elgin
Geneva
Gilberts
Hampshire
Kaneville
Lily Lake
Maple Park
North Aurora
Pingree Grove
Prestbury
Sleepy Hollow
South Elgin
St. Charles
Sugar Grove
Virgil
West Dundee
Climate data from the nearest NOAA station, Chicago Aurora Muni Ap, Il (3.7 mi from Big Rock). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.