Harman US

Roxana, IL Weather & Growing Conditions

Tonight
57°F
Rain
Rain and a slight chance of thunderstorms before 3am, then a slight chance of drizzle. Cloudy, with a low around 57. South wind 8 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.

7-day forecast

WhenTempForecastWindPrecip
Tonight 57°F Rain 8 to 17 mph S 88%
Wednesday 64°F Slight Chance Drizzle then Mostly Cloudy 8 to 14 mph W 12%
Wednesday Night 44°F Partly Cloudy 7 mph SW 0%
Thursday 66°F Sunny 5 to 12 mph W 1%
Thursday Night 44°F Mostly Cloudy 6 mph NW 8%
Friday 59°F Mostly Cloudy 6 to 10 mph NW 6%
Friday Night 38°F Partly Cloudy 2 to 7 mph N 1%
Saturday 57°F Mostly Sunny 5 mph NW 0%
Saturday Night 36°F Partly Cloudy 2 mph NW 0%
Sunday 62°F Sunny 2 to 7 mph W 7%
Sunday Night 36°F Mostly Clear 5 mph W 4%
Monday 66°F Sunny 2 to 8 mph SW 2%
Monday Night 41°F Mostly Clear 5 mph SW 1%
Tuesday 69°F Sunny 6 mph W 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Roxana, IL

Last spring frost
Apr 4
First fall frost
Nov 5
Growing season
214 days
Hardiness zone
7a

Explore more for Roxana, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Alton - Melvin Price L&D, Il (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.