Harman US

Rockford, IL Weather & Growing Conditions

Today
61°F
Slight Chance Drizzle then Slight Chance Rain Showers
A slight chance of drizzle before 1pm, then a slight chance of rain showers and a slight chance of drizzle. Mostly cloudy. High near 61, with temperatures falling to around 54 in the afternoon. Southwest wind around 15 mph, with gusts as high as 25 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 61°F Slight Chance Drizzle then Slight Chance Rain Showers 15 mph SW 14%
Tonight 44°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph SW 11%
Thursday 55°F Chance Rain 10 to 15 mph W 54%
Thursday Night 36°F Mostly Cloudy 10 mph N 12%
Friday 48°F Mostly Sunny 10 to 15 mph N 0%
Friday Night 30°F Mostly Clear 0 to 5 mph NNW 0%
Saturday 51°F Sunny 0 to 5 mph NW 0%
Saturday Night 32°F Mostly Clear 0 to 5 mph W 1%
Sunday 56°F Sunny 5 to 10 mph W 5%
Sunday Night 34°F Mostly Clear 0 to 5 mph WSW 0%
Monday 60°F Sunny 0 to 10 mph SW 0%
Monday Night 38°F Mostly Clear 5 to 10 mph W 0%
Tuesday 61°F Sunny 5 mph WNW 0%
Tuesday Night 37°F Partly Cloudy 0 to 5 mph NNW 0%

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 (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.