West Brooklyn, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Brooklyn, a village in Lee County, Illinois.
Tonight
56°F
Rain Showers
Rain showers. Cloudy. Low around 56, with temperatures rising to around 59 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for West Brooklyn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Rain Showers | 15 mph S | 89% |
| Wednesday | 58°F | Chance Rain Showers | 15 mph SSW | 39% |
| Wednesday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 15 mph SW | 20% |
| Thursday | 54°F | Chance Rain Showers | 10 to 15 mph WSW | 50% |
| Thursday Night | 42°F | Chance Rain Showers | 5 to 10 mph NW | 39% |
| Friday | 50°F | Slight Chance Rain Showers then Partly Sunny | 10 mph N | 16% |
| Friday Night | 35°F | Partly Cloudy | 5 to 10 mph NNW | 1% |
| Saturday | 50°F | Mostly Sunny | 5 mph WNW | 3% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 5 mph WSW | 4% |
| Sunday | 56°F | Mostly Sunny | 5 to 10 mph W | 13% |
| Sunday Night | 37°F | Mostly Clear | 5 mph W | 5% |
| Monday | 60°F | Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 41°F | Mostly Clear | 5 to 10 mph W | 1% |
| Tuesday | 62°F | Sunny | 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for West Brooklyn (41.693, -89.147). Updated through the day.
Growing snapshot for West Brooklyn
Last spring frost
Apr 27
First fall frost
Oct 12
Growing season
167 days
Hardiness zone
5b
More local growing data for West Brooklyn: nearby ZIP 61378 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Amboy
Ashton
Compton
Dixon
Franklin Grove
Grand Detour
Harmon
Lee
Lee Center
Lost Nation
Nachusa
Nelson
Paw Paw
Steward
Sublette
Climate data from the nearest NOAA station, Compton 1 Nw, Il (3.1 mi from West Brooklyn). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.