Big Rock, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Rock, a village in Kane County, Illinois.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. South southwest wind 5 to 10 mph.
7-day forecast for Big Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Tonight | 66°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SSW | 36% |
| Wednesday | 79°F | Showers And Thunderstorms Likely | 5 mph SW | 73% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 5 mph NW | 86% |
| Thursday | 79°F | Rain Showers Likely then Chance Showers And Thunderstorms | 5 mph E | 59% |
| Thursday Night | 61°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 27% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SE | 6% |
| Friday Night | 63°F | Partly Cloudy | 0 to 5 mph SSW | 9% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph SSW | 11% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 18% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 18% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 37% |
| Monday | 85°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 36% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 10 mph W | 43% |
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 Aug 4, 2026.