Harman US

Rockbridge, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Rockbridge, a village in Greene County, Illinois.

This Afternoon
73°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 73, with temperatures falling to around 67 in the afternoon. South wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

7-day forecast for Rockbridge

WhenTempForecastWindPrecip
This Afternoon 73°F Light Rain 18 mph S 94%
Tonight 50°F Rain 8 to 17 mph S 94%
Wednesday 61°F Chance Rain Showers then Mostly Cloudy 9 to 14 mph SW 12%
Wednesday Night 39°F Partly Cloudy 7 mph SW 0%
Thursday 63°F Sunny 6 to 12 mph W 4%
Thursday Night 39°F Mostly Cloudy then Slight Chance T-storms 2 to 6 mph NW 22%
Friday 57°F Mostly Cloudy 5 to 9 mph NW 6%
Friday Night 33°F Mostly Cloudy 1 to 7 mph N 2%
Saturday 56°F Mostly Sunny 3 mph NW 0%
Saturday Night 31°F Partly Cloudy 1 mph NW 0%
Sunday 62°F Sunny 1 to 7 mph W 7%
Sunday Night 32°F Mostly Clear 1 to 5 mph W 4%
Monday 66°F Sunny 2 to 8 mph SW 2%
Monday Night 36°F Mostly Clear 5 mph SW 1%

Forecast source: National Weather Service (api.weather.gov) for Rockbridge (39.269, -90.207). Updated through the day.

Growing snapshot for Rockbridge

Last spring frost
Apr 14
First fall frost
Oct 19
Growing season
187 days
Hardiness zone
6b

More local growing data for Rockbridge: nearby ZIP 62081 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

All Illinois locations ›

Climate data from the nearest NOAA station, Jerseyville 2 Sw, Il (12.9 mi from Rockbridge). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.