Rockton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rockton, a village in Winnebago County, Illinois.
Tonight
62°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then showers and thunderstorms likely between midnight and 1am, then patchy fog and showers and thunderstorms between 1am and 4am, then patchy fog and showers and thunderstorms. Cloudy. Low around 62, with temperatures rising to around 64 overnight. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Rockton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Showers And Thunderstorms Likely | 5 to 10 mph ENE | 87% |
| Sunday | 66°F | Rain Showers Likely | 10 to 15 mph NE | 74% |
| Sunday Night | 53°F | Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Monday | 62°F | Chance Rain Showers | 15 mph ENE | 38% |
| Monday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 52% |
| Tuesday | 60°F | Chance Rain Showers | 10 to 15 mph NE | 52% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 62°F | Partly Sunny | 5 to 10 mph NE | 7% |
| Wednesday Night | 48°F | Mostly Cloudy | 5 to 10 mph NE | 2% |
| Thursday | 65°F | Partly Sunny | 5 mph NE | 10% |
| Thursday Night | 50°F | Mostly Cloudy | 0 to 5 mph NE | 10% |
| Friday | 68°F | Partly Sunny | 0 to 5 mph NE | 9% |
| Friday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 9% |
| Saturday | 69°F | Mostly Sunny | 0 to 5 mph ENE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Rockton (42.447, -89.063). Updated through the day.
Growing snapshot for Rockton
Last spring frost
May 1
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
5b
More local growing data for Rockton: nearby ZIP 61073 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Cherry Valley
Durand
Loves Park
Machesney Park
New Milford
Pecatonica
Rockford
Roscoe
South Beloit
Westlake Village
Winnebago
Climate data from the nearest NOAA station, Beloit, Wi (5.9 mi from Rockton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.