Rockford, IL Weather & Growing Conditions
Tonight
62°F
Slight Chance Rain Showers then Showers And Thunderstorms Likely
A slight chance of rain showers before midnight, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Cloudy, with a low around 62. East southeast wind 10 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Slight Chance Rain Showers then Showers And Thunderstorms Likely | 10 to 15 mph ESE | 66% |
| Saturday | 76°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 15 mph SE | 92% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 76% |
| Sunday | 67°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 70% |
| Sunday Night | 53°F | Chance Rain Showers | 15 mph NE | 50% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 42% |
| Monday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 42% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 32% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 66°F | Partly Sunny | 5 to 10 mph NE | 5% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 10 mph NNE | 3% |
| Thursday | 67°F | Partly Sunny | 5 mph NNE | 5% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rockford, IL
Last spring frost
Apr 24
First fall frost
Oct 17
Growing season
174 days
Hardiness zone
5b
Explore more for Rockford, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Rockford Gtr Rockford Ap, Il (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.