Harman US

Arlington, IL Weather & Growing Conditions

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

Tonight
54°F
Rain Showers
Rain showers. Mostly cloudy. Low around 54, with temperatures rising to around 57 overnight. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast for Arlington

WhenTempForecastWindPrecip
Tonight 54°F Rain Showers 10 to 15 mph S 93%
Wednesday 59°F Chance Rain Showers then Mostly Cloudy 10 to 15 mph SW 43%
Wednesday Night 46°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph SW 19%
Thursday 55°F Chance Rain Showers 10 to 15 mph W 40%
Thursday Night 42°F Chance Rain Showers then Mostly Cloudy 5 to 10 mph NW 27%
Friday 50°F Partly Sunny 5 to 10 mph N 6%
Friday Night 32°F Partly Cloudy 0 to 5 mph N 0%
Saturday 51°F Sunny 0 to 5 mph NW 0%
Saturday Night 33°F Mostly Clear 0 to 5 mph W 1%
Sunday 55°F Sunny 5 to 10 mph W 4%
Sunday Night 34°F Clear 0 to 5 mph W 0%
Monday 61°F Sunny 0 to 10 mph SW 0%
Monday Night 40°F Mostly Clear 5 mph W 1%
Tuesday 62°F Sunny 5 mph NW 1%

Forecast source: National Weather Service (api.weather.gov) for Arlington (41.472, -89.248). Updated through the day.

Growing snapshot for Arlington

Last spring frost
Apr 24
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
5b

More local growing data for Arlington: nearby ZIP 61312 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

All Illinois locations ›

Climate data from the nearest NOAA station, Peru, Il (8.4 mi from Arlington). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.