West Brooklyn, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Brooklyn, a village in Lee County, Illinois.
This Afternoon
72°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a high near 72. East southeast wind 10 to 15 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for West Brooklyn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Slight Chance Rain Showers | 10 to 15 mph ESE | 23% |
| Tonight | 64°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph ESE | 38% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 5 to 15 mph SSE | 79% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph N | 78% |
| Sunday | 68°F | Showers And Thunderstorms | 10 to 20 mph NE | 78% |
| Sunday Night | 56°F | Showers And Thunderstorms Likely | 15 to 20 mph NE | 66% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 54% |
| Monday Night | 52°F | Chance Rain Showers | 15 to 20 mph NE | 36% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 32% |
| Tuesday Night | 50°F | Mostly Cloudy | 10 to 15 mph NE | 7% |
| Wednesday | 66°F | Partly Sunny | 10 mph NNE | 5% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 69°F | Mostly Sunny | 5 mph NNE | 4% |
| Thursday Night | 53°F | Partly Cloudy | 5 mph NE | 4% |
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 Sep 19, 2026.